Medicare Enrolled
Dr. Prem Chatpar, M.D.
Rheumatology · Plainview, NY
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
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. Chatpar 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. Chatpar
Dr. Prem Chatpar is a rheumatology specialist in Plainview, NY, with 20 years of NPI registration. Based on federal Medicare data, Dr. Chatpar performed 37,796 Medicare services across 5,595 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chatpar received a total of $9,626 from 35 pharmaceutical and/or device companies across 334 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in rheumatology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Chatpar 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 in practice
▲ Top 9% volume in NY
$9,626 industry payments
Medicare Practice Summary
Medicare Utilization ↗37,796
Medicare services
Top 9% in NY for rheumatology
5,595
Unique beneficiaries
$25
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,890 Medicare services per year of practice
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 |
|---|---|---|---|
| Golimumab infusion (Simponi Aria) Administration of golimumab medication directly into a vein. This code specifies the dosage amount of 1 milligram for intravenous delivery. |
11,750 | $10 | $50 |
| 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. |
10,475 | $34 | $134 |
| Hyaluronan intra-articular injection, 1 mg An injection of hyaluronan or its derivative into a joint space. This procedure delivers 1 mg of the substance directly into the affected joint. |
3,283 | $8 | $32 |
| 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. |
1,908 | $83 | $275 |
| Denosumab injection (Prolia/Xgeva) | 1,505 | $18 | $69 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
1,016 | $1 | $4 |
| 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. |
567 | $94 | $312 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
494 | $8 | $19 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
450 | $8 | $10 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
450 | $10 | $26 |
| Erythrocyte sedimentation rate (ESR) test A blood test that measures how quickly red blood cells settle in a test tube to detect inflammation in the body. This specific method is performed manually rather than using an automated machine. |
446 | $4 | $11 |
| C-reactive protein test (inflammation marker) A blood test that measures the level of C-reactive protein to detect the presence of infection or inflammation in the body. |
425 | $5 | $13 |
| 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. |
423 | $112 | $389 |
| 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. |
389 | $61 | $500 |
| 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. |
319 | $13 | $71 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
307 | $29 | $74 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
175 | $16 | $42 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
173 | $13 | $34 |
| Iron binding capacity test A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron. |
173 | $9 | $22 |
| Iron level test | 172 | $6 | $16 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
157 | $9 | $23 |
| 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. |
155 | $57 | $124 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
148 | $17 | $42 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
146 | $7 | $17 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
146 | $14 | $80 |
| Bone density scan (DEXA) of hip, pelvis, and spine This test measures bone density in the hip, pelvis, and spine to assess bone strength. It also includes an assessment for spine fractures. |
145 | $63 | $161 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
140 | $15 | $38 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
130 | $14 | $37 |
| Injection, methylprednisolone acetate, 40 mg | 121 | $6 | $15 |
| X-ray of hand, 2 views An X-ray imaging test of the hand using two different angles to visualize the bones and joints. |
106 | $30 | $97 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
100 | $6 | $20 |
| Microsomal antibody test A blood test that measures the level of microsomal antibodies, which are autoantibodies produced by the immune system. |
95 | $14 | $36 |
| Methylprednisolone injection, up to 125 mg An injection of methylprednisolone sodium succinate, a corticosteroid medication, with a dosage of up to 125 mg. |
95 | $4 | $25 |
| Thyroglobulin antibody blood test A blood test that measures the level of antibodies against thyroglobulin, a protein produced by the thyroid gland. |
94 | $16 | $40 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
79 | $129 | $1,000 |
| 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. |
78 | $151 | $509 |
| Trigger point injection, 3 or more muscles Injection of medication into three or more specific muscle trigger points to relieve pain. |
72 | $58 | $194 |
| Parathyroid hormone level test A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones. |
68 | $40 | $103 |
| Additional hour of intravenous chemotherapy This code represents the administration of chemotherapy medication into a vein for each additional hour beyond the initial period. |
68 | $27 | $600 |
| Wrist X-ray, 2 views An X-ray imaging test of the wrist using two different angles to visualize the bones and joints. |
58 | $32 | $106 |
| Collagen cross-links urine test A urine test used to evaluate bone health by measuring collagen cross-links. |
57 | $18 | $47 |
| 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. |
48 | $51 | $170 |
| Methylprednisolone acetate injection, 20 mg A 20 mg injection of methylprednisolone acetate, a corticosteroid medication. This code specifies the drug and dosage administered. |
44 | $3 | $9 |
| Viscosupplementation injection for joint An injection of hyaluronic acid or a derivative into a joint to provide lubrication and cushioning. |
43 | $59 | $188 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
41 | $0 | $20 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
39 | $10 | $24 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
39 | $1 | $5 |
| X-ray of both knees, standing An X-ray image of both knees taken while the patient is standing to assess bone alignment and joint space under weight-bearing conditions. |
37 | $38 | $127 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
32 | $96 | $342 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
31 | $13 | $33 |
| Annual depression screening | 28 | $22 | $56 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
26 | $47 | $118 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
26 | $36 | $150 |
| Ultrasound-guided small joint aspiration or injection This procedure involves removing fluid from or injecting medication into a small joint while using ultrasound imaging to guide the needle placement. |
25 | $74 | $252 |
| Ultrasound-guided joint aspiration or injection Removal of fluid from or injection into a medium-sized joint using ultrasound guidance to ensure accurate placement. |
25 | $82 | $279 |
| Cardiac enzyme level (CK-MB) test A blood test that measures the total level of creatine kinase, specifically the cardiac enzyme fraction, to help evaluate heart muscle damage. |
25 | $6 | $16 |
| Limited ultrasound of joint or extremity A focused ultrasound exam of a specific joint or other structure in the arm or leg, excluding blood vessels. |
23 | $38 | $172 |
| Trigger point injection, 1-2 muscles A procedure involving the injection of medication into one or two specific muscles to treat trigger points. |
20 | $50 | $171 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
16 | $34 | $106 |
| X-ray of both hips, 2 views An X-ray imaging test that captures two views of both hip joints to evaluate bone structure and alignment. |
15 | $41 | $127 |
| DHEA-S hormone level test A blood test that measures the level of dehydroepiandrosterone sulfate (DHEA-S), a hormone produced by the adrenal glands. |
15 | $22 | $56 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
14 | $56 | $189 |
| Blood glucose level test A test that measures the amount of sugar in your blood. |
14 | $4 | $10 |
| Glycated protein level test A blood test that measures the level of glycated protein to assess average blood sugar control over time. |
12 | $16 | $42 |
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. A higher procedure volume generally indicates more experience with that procedure.
60.0% high complexity
20.1% medium
19.9% routine
Industry Payment Transparency
Open Payments through 2024 ↗$9,626
Total received (2018-2024)
Avg $1,375/year across 7 years
Top 30% in NY for rheumatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
35
Companies
334
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$6,380 (66.3%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$2,849 (29.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$396 (4.1%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$132
2023
$1,339
2022
$2,629
2021
$929
2020
$767
2019
$3,794
2018
$37
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Janssen Biotech, Inc.
$91
Amgen Inc.
$41
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
Cardinal Health 108, LLC
$2,749
AbbVie Inc.
$862
Horizon Therapeutics plc
$747
Amgen Inc.
$737
Mallinckrodt Hospital Products Inc.
$660
ABBVIE INC.
$524
Janssen Biotech, Inc.
$449
PFIZER INC.
$429
GlaxoSmithKline, LLC.
$351
Lilly USA, LLC
$287
Mallinckrodt Enterprises LLC
$242
Boehringer Ingelheim Pharmaceuticals, Inc.
$240
Novartis Pharmaceuticals Corporation
$212
Radius Health, Inc.
$186
UCB, Inc.
$133
Cardinal Health 110 LLC
$100
Fidia Pharma USA Inc.
$81
AstraZeneca Pharmaceuticals LP
$64
Alexion Pharmaceuticals, Inc.
$58
MEDEXUS PHARMA, INC.
$57
DePuy Synthes Sales Inc.
$57
Hikma Pharmaceuticals USA
$46
Exeltis, USA Inc.
$46
Bioventus LLC
$45
AbbVie, Inc.
$43
E.R. Squibb & Sons, L.L.C.
$37
Genentech USA, Inc.
$37
FIDIA PHARMA USA INC.
$26
Actelion Pharmaceuticals US, Inc.
$22
GENZYME CORPORATION
$22
Amarin Pharma Inc.
$16
Lundbeck LLC
$16
MEDAC PHARMA, INC.
$15
Teva Pharmaceuticals USA, Inc.
$14
Aurinia Pharma U.S., Inc.
$14
Top 3 companies account for 45.3% of all-time payments
Associated products mentioned in payments ›
ACTHAR · BENLYSTA · COSENTYX · Cimzia · Durolane · EVENITY · Enbrel · HUMIRA · HYMOVIS · Humira · Hymovis · KEVZARA · KRYSTEXXA · LUPKYNIS · Mitigare · OFEV · ORENCIA · ORTHOVISC · Otezla · PURIFIED CORTROPHIN GEL · RAYOS · REMICADE · RINVOQ · Rasuvo · Rituxan · SAPHNELO · SIMPONI · SKYRIZI · TALTZ · TAVNEOS · TREMFYA · Tavneos · Truxima · Tymlos · ULTOMIRIS · UPTRAVI · VYEPTI · Vascepa · XELJANZ
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. 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 →
Most payments (66%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Rheumatologists within 10 mi
191
Per 100K population
13.8
County median income
$143,408
Nearest hospital
PLAINVIEW HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | 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. Chatpar is a mixed practice specialist, with above-average Medicare volume (top 9% in NY), with low-engagement industry engagement, 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. Chatpar experienced with golimumab infusion (simponi aria)?
Based on Medicare claims data, Dr. Chatpar performed 11,750 golimumab infusion (simponi aria) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Chatpar receive payments from pharmaceutical companies?
Yes. Dr. Chatpar received a total of $9,626 from 35 companies across 334 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. 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. Chatpar's costs compare to other rheumatologists in Plainview?
Dr. Chatpar's average Medicare payment per service is $25. 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. Chatpar) 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 a long track record of practice, Medicare participation, and industry disclosure. 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?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): 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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