Medicare Enrolled
Dr. James Greenberg, MD
Internal Medicine · San Francisco, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Greenberg from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Greenberg
Dr. James Greenberg is an internal medicine specialist in San Francisco, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Greenberg performed 6,293 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Greenberg received a total of $52,811 from 61 pharmaceutical and/or device companies across 1363 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Greenberg is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years of NPI registration
▲ Top 4% volume in CA
$52,811 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗6,293
Medicare services
Top 4% in CA for internal medicine
Not available
Unique patients (not deduplicated)
$74
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
2,174 | $58 | $120 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,456 | $84 | $160 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
454 | $85 | $120 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
321 | $157 | $220 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
308 | $122 | $210 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
293 | $37 | $45 |
| Influenza vaccine, quadrivalent, 0.5 ml dosage | 274 | $20 | $70 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
162 | $14 | $90 |
| Home health plan of care re-certification A physician reviews the patient's status and contacts the home health agency to re-certify the plan of care without the patient being present. |
143 | $41 | $120 |
| Home health plan of care certification Certification by a physician or allowed practitioner for Medicare-covered home health services under a home health plan of care. This includes contacting the home health agency and reviewing reports of patient status required by physicians. |
106 | $51 | $180 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
100 | $54 | $125 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
80 | $149 | $310 |
| Telephone medical discussion, 5-10 minutes A phone conversation with a physician lasting between 5 and 10 minutes to discuss medical matters. |
57 | $54 | $90 |
| Chronic care management, additional 20 min/month This service covers an extra 20 minutes of clinical staff time directed by a healthcare professional for managing two or more chronic conditions each calendar month. |
54 | $45 | $60 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
43 | $14 | $45 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
40 | $37 | $45 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
35 | $270 | $360 |
| Ear wax removal A procedure to remove impacted ear wax from the ear canal. |
30 | $46 | $90 |
| New patient office visit, complex (60-74 min) | 26 | $201 | $375 |
| Blood glucose test using hand-held instrument A test that measures the level of sugar in the blood using a portable device. The result helps monitor blood glucose levels. |
20 | $3 | $15 |
| Pneumococcal vaccine, 13-valent | 20 | $253 | $280 |
| Pneumococcal vaccine, 23-valent A vaccine that protects against 23 types of pneumococcal bacteria. It is used to prevent infections caused by these bacteria. |
20 | $131 | $180 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
18 | $76 | $177 |
| Destruction of precancerous skin growth, 1 Removal of a single precancerous skin growth. This procedure destroys abnormal skin cells to prevent them from developing into cancer. |
16 | $69 | $140 |
| Annual wellness visit, initial visit A yearly appointment to review your health and create a personalized prevention plan. This initial visit focuses on preventive care and health assessment. |
16 | $198 | $300 |
| Initial preventive physical examination, new Medicare beneficiary A comprehensive preventive health visit for new Medicare beneficiaries during their first 12 months of enrollment. The service is conducted as a face-to-face visit and is limited to preventive care. |
14 | $198 | $300 |
| Transitional care management services, moderate complexity Services provided to coordinate care during the transition from an inpatient or other facility setting back to the community. This includes follow-up and management of a health problem of at least moderate complexity. |
13 | $200 | $280 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$52,811
Total received (2018-2024)
Avg $7,544/year across 7 years
Top 3% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
61
Companies
1,363
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$4,377
2023
$4,087
2022
$6,812
2021
$10,279
2020
$11,250
2019
$12,493
2018
$3,513
Payments by company (2024)
Novo Nordisk Inc
$652
PFIZER INC.
$545
ABBVIE INC.
$541
AstraZeneca Pharmaceuticals LP
$379
GlaxoSmithKline, LLC.
$288
Lilly USA, LLC
$279
Phathom Pharmaceuticals, Inc.
$240
Novartis Pharmaceuticals Corporation
$208
Janssen Pharmaceuticals, Inc
$202
Boehringer Ingelheim Pharmaceuticals, Inc.
$191
IRONWOOD PHARMACEUTICALS, INC
$156
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$143
Amgen Inc.
$104
Sumitomo Pharma America, Inc.
$97
Bayer Healthcare Pharmaceuticals Inc.
$77
AIMMUNE THERAPEUTICS, INC.
$61
IDORSIA PHARMACEUTICALS US INC
$45
SCILEX PHARMACEUTICALS INC.
$41
Esperion Therapeutics, Inc.
$40
E.R. Squibb & Sons, L.L.C.
$26
Radius Health, Inc.
$26
Xeris Pharmaceuticals, Inc.
$22
Kowa Pharmaceuticals America, Inc.
$14
Top 3 companies account for 39.7% of 2024 payments
All-time payments by company (2018-2024) ›
AbbVie Inc.
$12,051
Allergan Inc.
$5,521
AbbVie, Inc.
$4,462
ABBVIE INC.
$3,299
Nestle HealthCare Nutrition Inc.
$2,006
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$1,990
Novo Nordisk Inc
$1,893
Ironwood Pharmaceuticals, Inc
$1,686
Boehringer Ingelheim Pharmaceuticals, Inc.
$1,675
Takeda Pharmaceuticals U.S.A., Inc.
$1,558
Janssen Pharmaceuticals, Inc
$1,341
AstraZeneca Pharmaceuticals LP
$1,315
Lilly USA, LLC
$1,271
GlaxoSmithKline, LLC.
$1,208
Allergan, Inc.
$1,130
PFIZER INC.
$1,027
Amarin Pharma Inc.
$994
Amgen Inc.
$872
Novartis Pharmaceuticals Corporation
$856
Medtronic, Inc.
$650
E.R. Squibb & Sons, L.L.C.
$484
Bayer Healthcare Pharmaceuticals Inc.
$447
Esperion Therapeutics, Inc.
$428
Bayer HealthCare Pharmaceuticals Inc.
$423
Merck Sharp & Dohme Corporation
$373
Astellas Pharma US Inc
$360
Sunovion Pharmaceuticals Inc.
$301
IRONWOOD PHARMACEUTICALS, INC
$252
ARBOR PHARMACEUTICALS, INC.
$246
Phathom Pharmaceuticals, Inc.
$240
Eisai Inc.
$233
Sumitomo Pharma America, Inc.
$214
Synergy Pharmaceuticals Inc
$180
Biohaven Pharmaceutical Holding Company Ltd.
$146
Scilex Pharmaceuticals Inc.
$144
Regeneron Healthcare Solutions, Inc.
$130
Intuitive Surgical, Inc.
$128
Radius Health, Inc.
$125
Smith+Nephew, Inc.
$123
Biohaven Pharmaceuticals, Inc.
$116
Merck Sharp & Dohme LLC
$108
SCILEX PHARMACEUTICALS INC.
$107
NESTLE HEALTHCARE NUTRITION INC.
$96
VIVUS LLC
$88
IDORSIA PHARMACEUTICALS US INC
$67
AIMMUNE THERAPEUTICS, INC.
$61
Xeris Pharmaceuticals, Inc.
$58
Kowa Pharmaceuticals America, Inc.
$53
Pernix Therapeutics Holdings, Inc.
$46
Noden Pharma USA Inc
$38
Almatica Pharma LLC
$37
SANOFI-AVENTIS U.S. LLC
$23
Ortho Dermatologics, a division of Bausch Health US, LLC
$20
ConvaTec Inc.
$19
IBSA Pharma Inc.
$16
Genentech USA, Inc.
$15
Arbor Pharmaceuticals, Inc.
$14
Gilead Sciences, Inc.
$14
Supernus Pharmaceuticals, Inc.
$13
Endo Pharmaceuticals Inc.
$12
Aroa Biosurgery Incorporated
$10
Top 3 companies account for 41.7% of all-time payments
Associated products mentioned in payments ›
ABRYSVO · ADVAIR · AIRSUPRA · AMITIZA · ANORO · ANORO ELLIPTA · APTIOM · AQUACEL AG · AREXVY · Aimovig · Amitiza · BASAGLAR · BELSOMRA · BEVESPI AEROSPHERE · BREZTRI · BYDUREON · BYSTOLIC · CAMZYOS · CHANTIX · COLLAGENASE SANTYL · COLOGUARD · COMIRNATY · CREON · Creon · DEXILANT · Da Vinci Surgical System · Dayvigo · Descovy · Dexilant · ELIQUIS · EMGALITY · ENTRESTO · EVENITY · Edarbi · FARXIGA · GEMTESA · GLYXAMBI · GRALISE · GVOKE HYPOPEN · Grafix PL PRIME · INVOKANA · JANUVIA · JARDIANCE · Kerendia · LEQVIO · LINZESS · LOREEV XR · Licart · Linzess · Livalo · MOTEGRITY · MOUNJARO · MYRBETRIQ · Motegrity · Myrbetriq · NASCOBAL · NEXLETOL · NEXLIZET · NURTEC ODT · Otezla · Ozempic · PANCREAZE · PAXLOVID · PRALUENT · PREMARIN · PREVNAR 20 · Pancreaze · Prolia · QULIPTA · QUVIVIQ · RYBELSUS · Repatha · Rybelsus · SHINGRIX · SILENOR · STIOLTO RESPIMAT · SYMBICORT · TEKTURNA · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TROKENDI XR · TRULANCE · TRULICITY · Tresiba · Trintellix · Trulance · Tymlos · UBRELVY · Uloric · VESICARE · VIBERZI · VOQUEZNA · VRAYLAR · Vascepa · Veozah · Victoza · Wegovy · XARELTO · XERESE · XIFAXAN · XIFAXANIBSD · Xofluza · ZENPEP · ZORYVE · ZTLido · ZTLido 30 POUCH in 1 CARTON 1 PATCH in 1 POUCH
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Internal medicine physicians in nearby ZIP areas
2,756
County median income
$141,446
Nearest hospital to ZIP centroid (approximate)
KAISER FOUNDATION HOSPITAL - SAN FRANCISCO
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Greenberg is a clinical cardiology specialist, with above-average Medicare volume (top 4% in CA), with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Greenberg experienced with chronic care management, first 20 min/month?
Based on Medicare claims data, Dr. Greenberg performed 2,174 chronic care management, first 20 min/month services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Greenberg receive payments from pharmaceutical companies?
Yes. Dr. Greenberg received a total of $52,811 from 61 companies across 1,363 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Greenberg's costs compare to other internal medicine physicians in San Francisco?
Dr. Greenberg's average Medicare payment per service is $74. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Greenberg) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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