Mark L. Bernstein, MD
Rheumatology Physician · Stony Brook, NY
Mark L. Bernstein, MD is a rheumatology physician with a practice address in Stony Brook, New York, and NPI 1710909502, issued on Jul 24, 2006. Check the license (New York 1419400, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark L. Bernstein
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 1419400 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Route 347, Stony Brook, NY 11790
- Phone
- (631) 689-7780
- Enumerated
- Jul 24, 2006
- Record last updated
- Jun 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (631) 689-5669
- Medicaid ID
- 00710467 NY
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 599 in New York → Look up another NPI →
Also registered at 2500 Route 347
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carmichael Angeles, M.D.Nephrology Physician1689671190
- Nicolae Caraiani, M.D.Nephrology Physician1700887924
- Mark Finger, M.D.Nephrology Physician1710984125
- Kelly Kreis, RN, LMTNurse Massage Therapist (NMT)1356615504
- Brooke Moore, M.D.Nephrology Physician1205833704
- Elyse Rafal, M.D.Dermatology Physician1477515781
Verify Mark L. Bernstein 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 1419400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Mark L. Bernstein among 599 rheumatology physician records in New York
Mark L. Bernstein, MD 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 fileNo · 71% of these records are
- Record last updated2010 · 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 Stony Brook → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Olena Guzhva, MDSyosset, NY 117911174779359
- Kyle Eskridge, PAWading River, NY 117921649740374
- Sanjay Godhwani, MDWading River, NY 117921174783567
- Howard Blumstein, M.D.Smithtown, NY 117871598751471
- Sara Johnson, M.D.Smithtown, NY 117871043206964
- Kristin Macdougall, MDSmithtown, NY 117871093000325
- Luiziana Marinescu, M.D.Smithtown, NY 117871790978096
- Peter Rumore, M.D.Smithtown, NY 117871245226109
Common questions
What is Mark L. Bernstein, MD's NPI number?
Mark L. Bernstein, MD's National Provider Identifier (NPI) is 1710909502, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark L. Bernstein, MD located?
The NPPES record lists a practice address at 2500 Route 347, Stony Brook, NY, 11790. Phone: (631) 689-7780. Providers update this record themselves, so call before visiting.
How can I verify Mark L. Bernstein, MD's license?
NPPES lists New York license number 1419400, 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.
What is Mark L. Bernstein, MD's MIPS final score?
The 2023 MIPS final score is 91.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.