Mark Ren, MD
Orthopaedic Surgery Physician · New York, NY
Mark Ren, MD is an orthopaedic surgery physician with a practice address in New York, New York, and NPI 1053881540, issued on Nov 28, 2018. Check the license (New York 341684, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark Ren
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 341684 NY
Self-reported in NPPES; status is on the state search - Practice location
- 535 E 70TH St, New York, NY 10021
- Phone
- (212) 606-1000
- Enumerated
- Nov 28, 2018
- Record last updated
- Feb 6, 2026
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 1,339 in New York → Look up another NPI →
Also registered at 535 E 70TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dana Aaron, PT, DPT, OCSOrthopedic Physical Therapist1609423045
- Matthew Abola, MDOrthopaedic Hand Surgery Physician1942864889
- Caroline Accardi, FNP-BCFamily Nurse Practitioner1346000163
- Emmanuel Adamptey, PASurgical Physician Assistant1871209031
- Alexa Adams, M.D.Pediatric Rheumatology Physician1639246747
- Michael AdashevSurgical Physician Assistant1609312156
Verify Mark Ren 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 341684Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
51 Medicare Part D claims for 29 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D.
Most prescribed
- Meloxicam15 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.
Mark Ren among 1,339 orthopaedic surgery physician records in New York
Mark Ren, MD is one of 1,339 orthopaedic surgery physician records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 7% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2026 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in New York
There are 1,339 orthopaedic surgery physician records in New York.
All 1,339 in New York → Every provider in New York → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Edward Athanasian, MDNew York, NY 100211740265727
- John Blanco, M.D.New York, NY 100211386623742
- Patrick Boland, MDNew York, NY 100211679552046
- Edward Crane, MDNew York, NY 100211841245974
- Fred Cushner, MDNew York, NY 100211588637938
- Andreas Gomoll, MDNew York, NY 100211649259946
- Steven Harwin, MDNew York, NY 100211962465542
- Allan Inglis, M.D.New York, NY 100211578554952
Common questions
What is Mark Ren, MD's NPI number?
Mark Ren, MD's National Provider Identifier (NPI) is 1053881540, issued on Nov 28, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mark Ren, MD located?
The NPPES record lists a practice address at 535 E 70TH St, New York, NY, 10021. Phone: (212) 606-1000. Providers update this record themselves, so call before visiting.
How can I verify Mark Ren, MD's license?
NPPES lists New York license number 341684, 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 Mark Ren, MD prescribe under Medicare Part D?
In 2024, Mark Ren, MD had 51 Medicare Part D claims for 29 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.