Medicare Enrolled
Dr. Arthur Mandelin, MD/PHD
Internal Medicine · Chicago, IL
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Mandelin 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. Mandelin
Dr. Arthur Mandelin is an internal medicine specialist in Chicago, IL, with 18 years of NPI registration. Based on federal Medicare data, Dr. Mandelin performed 90,011 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Mandelin received a total of $332,566 from 25 pharmaceutical and/or device companies across 498 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. Mandelin 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.
✓ 18 years of NPI registration
▲ Top 0% volume in IL
$332,566 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗90,011
Medicare services
Top 0% in IL for internal medicine
Not available
Unique patients (not deduplicated)
$13
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 |
|---|---|---|---|
| Tocilizumab injection (Actemra) | 29,671 | $5 | $14 |
| Iron infusion (Feraheme) An injection of ferumoxytol used to treat iron deficiency anemia in patients not on dialysis. |
14,790 | $0 | $4 |
| Vedolizumab infusion (Entyvio) This procedure involves the administration of vedolizumab via injection. The dosage is measured in milligrams. |
11,700 | $17 | $64 |
| Golimumab infusion (Simponi Aria) Administration of golimumab medication directly into a vein. This code specifies the dosage amount of 1 milligram for intravenous delivery. |
11,150 | $10 | $91 |
| Abatacept infusion (Orencia) An injection of abatacept administered under the direct supervision of a physician. This code is used for Medicare when the drug is not self-administered. |
9,200 | $34 | $88 |
| Infliximab infusion (Remicade) An injection of infliximab, excluding biosimilar versions, administered in a 10 mg dose. |
7,065 | $26 | $258 |
| Rituximab injection, 10 mg Administration of a 10 mg dose of rituximab medication via injection. |
2,000 | $57 | $257 |
| Joint lubricant injection (Synvisc) | 1,920 | $7 | $59 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
531 | $6 | $422 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
432 | $53 | $410 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
392 | $1 | $6 |
| 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. |
251 | $94 | $323 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
224 | $110 | $940 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
193 | $24 | $215 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
77 | $13 | $143 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
74 | $8 | $20 |
| Ultrasound-guided large joint aspiration or injection This procedure uses ultrasound imaging to guide the removal of fluid from or the injection of medication into a large joint. |
57 | $99 | $759 |
| Methylprednisolone injection, up to 40 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, administered in a dose of up to 40 mg. |
52 | $3 | $8 |
| Methylprednisolone injection, up to 125 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, with a dosage of up to 125 mg. |
40 | $4 | $10 |
| 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. |
31 | $147 | $434 |
| 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. |
30 | $12 | $88 |
| 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. |
26 | $62 | $219 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
24 | $74 | $175 |
| Complete ultrasound scan of joint An ultrasound exam that uses sound waves to create detailed images of a joint. This procedure allows for the visualization of the joint's internal structures. |
20 | $46 | $708 |
| 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. |
20 | $141 | $591 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
14 | $65 | $495 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
14 | $112 | $507 |
| 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. |
13 | $108 | $250 |
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.
60.6% high complexity
38.9% medium
0.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$332,566
Total received (2018-2024)
Avg $47,509/year across 7 years
Top 0% in IL for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
25
Companies
498
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
$12,824
2023
$18,486
2022
$30,082
2021
$11,473
2020
$53,184
2019
$129,630
2018
$76,889
Payments by company (2024)
PFIZER INC.
$6,447
ABBVIE INC.
$3,846
Janssen Biotech, Inc.
$2,306
Novartis Pharmaceuticals Corporation
$83
GE HEALTHCARE
$62
ANI Pharmaceuticals, Inc.
$46
Amgen Inc.
$18
E.R. Squibb & Sons, L.L.C.
$15
Top 3 companies account for 98.2% of 2024 payments
All-time payments by company (2018-2024) ›
PFIZER INC.
$159,542
Lilly USA, LLC
$44,799
ABBVIE INC.
$31,938
GENZYME CORPORATION
$22,732
AbbVie, Inc.
$20,528
Horizon Pharma plc
$13,083
Horizon Therapeutics plc
$11,714
Regeneron Pharmaceuticals, Inc.
$6,461
Regeneron Healthcare Solutions, Inc.
$5,158
AbbVie Inc.
$5,077
E.R. Squibb & Sons, L.L.C.
$5,063
Janssen Biotech, Inc.
$2,754
Pfizer Inc.
$2,275
Novartis Pharmaceuticals Corporation
$423
SANOFI-AVENTIS U.S. LLC
$185
UCB, Inc.
$180
Bioventus LLC
$150
Merck Sharp & Dohme Corporation
$123
GlaxoSmithKline, LLC.
$74
Janssen Scientific Affairs, LLC
$66
GE HEALTHCARE
$62
NeuroLogica Corporation, a subsidiary of Samsung Electronics Co., Ltd.
$50
Amgen Inc.
$49
ANI Pharmaceuticals, Inc.
$46
Gilead Sciences, Inc.
$35
Top 3 companies account for 71.0% of all-time payments
Associated products mentioned in payments ›
BENLYSTA · COSENTYX · Cimzia · DUEXIS · Durolane · Enbrel · FORTEO · HM70 · Humira · INFLECTRA · KEVZARA · KEVZARA SARILUMAB INJECTION · KRYSTEXXA · OLUMIANT · ORENCIA · PURIFIED CORTROPHIN GEL · RINVOQ · Rinvoq · SIMPONI ARIA · SKYRIZI · TALTZ · TREMFYA · Tavneos · Voluson · XELJANZ
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
5,726
County median income
$81,797
Nearest hospital to ZIP centroid (approximate)
NORTHWESTERN MEMORIAL HOSPITAL
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. Mandelin is a mixed practice specialist, with above-average Medicare volume (top 0% in IL), with 18 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. Mandelin experienced with tocilizumab injection (actemra)?
Based on Medicare claims data, Dr. Mandelin performed 29,671 tocilizumab injection (actemra) 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. Mandelin receive payments from pharmaceutical companies?
Yes. Dr. Mandelin received a total of $332,566 from 25 companies across 498 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. Mandelin's costs compare to other internal medicine physicians in Chicago?
Dr. Mandelin's average Medicare payment per service is $13. 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. Mandelin) 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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