Michael Naarendorp, M.D.
Rheumatology Physician · New York, NY
Michael Naarendorp, M.D. is a rheumatology physician with a practice address in New York, New York, and NPI 1740256908, issued on Feb 27, 2006. Check the license (New York 229836, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Michael Naarendorp
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 229836 NY
Self-reported in NPPES; status is on the state search - Practice location
- 51 Saint Nicholas Ave, New York, NY 10026
- Phone
- (212) 360-5752
- Enumerated
- Feb 27, 2006
- Record last updated
- Mar 13, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (212) 280-0603
- Medicaid ID
- 01921948 NY
- Medicare enrollment
- Enrolled (PECOS I20040409000604); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 599 in New York → Look up another NPI →
Also registered at 51 Saint Nicholas Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael Naarendorp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 229836Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average rheumatology physician in 2024
4,650 Medicare Part D claims for 426 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Methotrexate692 claims
- Prednisone387 claims
- Gabapentin314 claims
- Hydroxychloroquine Sulfate280 claims
- Vitamin D2274 claims
- Naproxen262 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $4,488.64
161 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Michael Naarendorp among 599 rheumatology physician records in New York
Michael Naarendorp, M.D. is one of 599 rheumatology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1985 · median 2003 among the 425 with a school on file
- Record last updated2017 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in New York
There are 599 rheumatology physician records in New York.
All 599 in New York → Every provider in New York → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Leah Alon, M.DNew York, NY 100271326213828
- Vladimir Falb, DONew York, NY 100251861074734
- Richard Siegel, MDNew York, NY 100251205589066
- Jay Adlersberg, MDNew York, NY 100281629140033
- Robin Dibner, MDNew York, NY 100281295839819
- Petros Efthimiou, MDNew York, NY 100281942246939
- Allen Radin, M.D.New York, NY 100281154305969
- Weijia Yuan, M.D.New York, NY 100281578740981
Common questions
What is Michael Naarendorp, M.D.'s NPI number?
Michael Naarendorp, M.D.'s National Provider Identifier (NPI) is 1740256908, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Naarendorp, M.D. located?
The NPPES record lists a practice address at 51 Saint Nicholas Ave, New York, NY, 10026. Phone: (212) 360-5752. Providers update this record themselves, so call before visiting.
How can I verify Michael Naarendorp, M.D.'s license?
NPPES lists New York license number 229836, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Naarendorp, M.D. prescribe under Medicare Part D?
In 2024, Michael Naarendorp, M.D. had 4,650 Medicare Part D claims for 426 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.