Medicare Enrolled

Dr. Timothy Sass, M.D.

Internal Medicine · Princeton, NJ
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
281 WITHERSPOON ST, Princeton, NJ 08540
6099213362
Registered in NPPES since 2007
NPI: 1265573166 verify on NPPES ↗
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. Sass 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. Sass

Dr. Timothy Sass is an internal medicine specialist in Princeton, NJ, with 19 years of NPI registration. Based on federal Medicare data, Dr. Sass performed 4,778 Medicare services in 2023. These records do not provide a deduplicated patient total.

Between the years covered by Open Payments, Dr. Sass received a total of $1,445 from 26 pharmaceutical and/or device companies across 93 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. Sass 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.

✓ 19 years of NPI registration ▲ Top 6% volume in NJ $1,445 industry payments

Medicare Practice Summary — 2023

Medicare Utilization ↗
4,778
Medicare services
Top 6% in NJ for internal medicine
Not available
Unique patients (not deduplicated)
$37
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
Overnight continuous oxygen level test
This test measures oxygen levels in the blood continuously overnight using a device attached to the ear or finger.
774 $20 $90
Blood draw (venipuncture)
Insertion of a needle into a vein to collect a blood sample.
351 $8 $20
Office visit, established patient, complex (40-54 min)
An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter.
325 $130 $250
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.
311 $63 $190
Urinalysis, manual
A manual laboratory examination of a urine sample to check for various substances and cells.
304 $3 $35
Immunoassay substance analysis, single step
A laboratory test that uses an immunoassay technique to analyze a substance in a single step.
300 $9 $25
Hemoglobin A1c test (diabetes monitoring)
A blood test that measures your average blood sugar levels over the past two to three months.
276 $10 $20
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.
273 $3 $7
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.
257 $11 $35
Stool test for blood to screen for colon tumors
A test that analyzes a stool sample to detect hidden blood, which is used to screen for colon tumors.
234 $4 $10
Annual alcohol misuse screening, 5 to 15 minutes 220 $19 $45
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.
206 $88 $190
Annual wellness visit, follow-up
A follow-up annual wellness visit that includes a personalized prevention plan of service.
193 $131 $176
Annual depression screening 186 $19 $45
Quadrivalent influenza vaccine, preservative-free
A flu shot containing four strains of the influenza virus, formulated without preservatives, administered in a 0.5 ml dose.
93 $22 $49
Flu vaccine administration
This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient.
90 $33 $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.
75 $11 $45
Vitamin B-12 injection
An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg.
46 $1 $9
Pneumococcal vaccine, 23-valent
A vaccine that protects against 23 types of pneumococcal bacteria. It is used to prevent infections caused by these bacteria.
44 $131 $200
Pneumonia vaccine administration
This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider.
43 $33 $40
New patient office visit, complex (60-74 min) 37 $142 $300
Telephone medical discussion, 21-30 minutes
A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone.
29 $84 $180
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.
23 $224 $475
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.
22 $167 $240
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.
18 $36 $65
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.
18 $167 $198
Expiratory airflow and volume test
A test that measures the amount of air you can exhale and the speed at which you can breathe it out. It evaluates lung function by assessing expiratory airflow and volume.
17 $21 $43
Routine 12-lead ECG screening
A standard 12-lead electrocardiogram performed as part of an initial preventive physical examination. The service includes both the performance of the test and the physician's interpretation and report.
13 $12 $22
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 ↗
$1,445
Total received (2018-2024)
Avg $206/year across 7 years
Top 34% in NJ for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
26
Companies
93
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
$271
2023
$247
2022
$170
2021
$243
2020
$192
2019
$183
2018
$139

Payments by company (2024)

AstraZeneca Pharmaceuticals LP
$158
PFIZER INC.
$32
Novo Nordisk Inc
$18
Exact Sciences Corporation
$18
Amgen Inc.
$17
Merck Sharp & Dohme LLC
$16
IDORSIA PHARMACEUTICALS US INC
$14
Top 3 companies account for 76.4% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$235
Lilly USA, LLC
$173
Novo Nordisk Inc
$164
Merck Sharp & Dohme Corporation
$120
GlaxoSmithKline, LLC.
$117
Boehringer Ingelheim Pharmaceuticals, Inc.
$86
PFIZER INC.
$74
Biohaven Pharmaceuticals, Inc.
$63
Takeda Pharmaceuticals U.S.A., Inc.
$57
Exact Sciences Corporation
$50
SANOFI PASTEUR INC.
$41
Amarin Pharma Inc.
$39
Mission Pharmacal Company
$26
Paratek Pharmaceuticals, Inc.
$26
Amgen Inc.
$17
Kowa Pharmaceuticals America, Inc.
$16
Merck Sharp & Dohme LLC
$16
Alexion Pharmaceuticals, Inc.
$15
Sanofi Pasteur Inc.
$15
Seqirus USA Inc
$15
Eisai Inc.
$14
IDORSIA PHARMACEUTICALS US INC
$14
Biohaven Pharmaceutical Holding Company Ltd.
$14
Vertical Pharmaceuticals, LLC
$13
ARBOR PHARMACEUTICALS, INC.
$13
Sebela Pharmaceuticals Inc.
$12
Top 3 companies account for 39.6% of all-time payments
Associated products mentioned in payments ›
ADACEL · AIRSUPRA · AREXVY · BASAGLAR · CAPVAXIVE · CHANTIX · Cologuard Collection Kit · Dayvigo · ENGERIX-B · Edarbi · FARXIGA · FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE · FLUZONE HIGH-DOSE · Ferralet · Fluad Quadrivalent · GATTEX · JANUVIA · JARDIANCE · LORZONE · MOTOFEN · NURTEC ODT · NUZYRA · Otezla · Ozempic · PREMARIN · PREVNAR 20 · QUVIVIQ · Rybelsus · SEGLENTIS · SHINGRIX · SYMBICORT · SYNJARDY · Strensiq · TRULICITY · Vascepa
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 →
Looking for an internal medicine specialist in Princeton?
Compare internal medicine physicians in the Princeton area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Internal medicine physicians in nearby ZIP areas
1,432
County median income
$96,333
Nearest hospital to ZIP centroid (approximate)
UNIVERSITY MEDICAL CENTER OF PRINCETON AT PLAINSBORO
4.3 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. Sass is a clinical cardiology specialist, with above-average Medicare volume (top 6% in NJ), with 19 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. Sass experienced with overnight continuous oxygen level test?
Based on Medicare claims data, Dr. Sass performed 774 overnight continuous oxygen level test 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. Sass receive payments from pharmaceutical companies?
Yes. Dr. Sass received a total of $1,445 from 26 companies across 93 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. Sass's costs compare to other internal medicine physicians in Princeton?
Dr. Sass's average Medicare payment per service is $37. 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. Sass) 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 →
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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Industry payment disclosure alone establishes neither wrongdoing nor legality. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →