Harold D. Keiser, MD
Rheumatology Physician · Bronx, NY
Harold D. Keiser, MD is a rheumatology physician with a practice address in Bronx, New York, and NPI 1245320951, issued on Oct 13, 2006. Check the license (New York 105395, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Harold D. Keiser
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 105395 NY
Self-reported in NPPES; status is on the state search - Practice location
- Montefiore Medical Park, Bronx, NY 10461
- Phone
- (718) 405-8323
- Enumerated
- Oct 13, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 599 in New York → Look up another NPI →
Also registered at Montefiore Medical Park
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Henny Billett, MDHematology (Internal Medicine) Physician1689755001
- Bruce Cohen, MDDiagnostic Radiology Physician1427141696
- Jill Crandall, MDEndocrinology, Diabetes & Metabolism Physician1548359896
- Mark Czaja, MDGastroenterology Physician1265522163
- Peter Dicpinigaitis, MDCritical Care Medicine (Internal Medicine) Physician1194815993
Verify Harold D. Keiser 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 105395Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average rheumatology physician in 2024
931 Medicare Part D claims for 131 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 114 claims were for opioids.
Most prescribed
- Methotrexate111 claims
- Prednisone84 claims
- Gabapentin81 claims
- Cyclobenzaprine Hcl80 claims
- Enbrel Sureclick55 claims
- Zolpidem Tartrate53 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Harold D. Keiser among 599 rheumatology physician records in New York
Harold D. Keiser, 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 updated2007 · 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 Bronx → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Chrisanna Dobrowolski, MDBronx, NY 104611639619729
- Beverly Johnson, MDBronx, NY 104611336306992
- Elizabeth Kitsis, M.D.Bronx, NY 104611174692040
- Anand Kumthekar, M.B.B.SBronx, NY 104611962843391
- Elena Peeva, MDBronx, NY 104611831288141
- Chaim Putterman, MDBronx, NY 104611992894281
- Noa Shwartz, MDBronx, NY 104611215299474
- Milena Vukelic, M.D.Bronx, NY 104611013323641
Common questions
What is Harold D. Keiser, MD's NPI number?
Harold D. Keiser, MD's National Provider Identifier (NPI) is 1245320951, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Harold D. Keiser, MD located?
The NPPES record lists a practice address at Montefiore Medical Park, Bronx, NY, 10461. Phone: (718) 405-8323. Providers update this record themselves, so call before visiting.
How can I verify Harold D. Keiser, MD's license?
NPPES lists New York license number 105395, 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 Harold D. Keiser, MD prescribe under Medicare Part D?
In 2024, Harold D. Keiser, MD had 931 Medicare Part D claims for 131 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Harold D. Keiser, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.