Nicholas F.h. Stienstra, M.D.
Rheumatology Physician · Monterey, CA
Nicholas F.h. Stienstra, M.D. is a rheumatology physician with a practice address in Monterey, California, and NPI 1033505581, issued on Apr 11, 2015. Check the license (California A170493, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nicholas F.h. Stienstra
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A170493 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2 Upper Ragsdale Dr Bldg A, Monterey, CA 93940
- Phone
- (831) 333-3040
- Enumerated
- Apr 11, 2015
- Record last updated
- Apr 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (831) 886-3639
- Medicare enrollment
- Enrolled (PECOS I20210504002624); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 2 Upper Ragsdale Dr Bldg A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar AbdallaFamily Medicine Physician1770220378
- Oluwafunmilola AdekanmbiNeurology Physician1578051231
- Nupur Aggarwal, MDInternal Medicine Physician1164680336
- Antonette Ajayi, MDPulmonary Disease Physician1225456643
- Lancelot Alexander, MDNeurology Physician1841215290
- Angelfrey Armas Ruiz, MDFamily Medicine Physician1295298487
Verify Nicholas F.h. Stienstra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A170493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,840 Medicare Part D claims for 279 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate271 claims
- Prednisone257 claims
- Methotrexate237 claims
- Gabapentin102 claims
- Allopurinol61 claims
- Meloxicam60 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): 77.8 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).
Bills Medicare through one group practice
- Montage Medical GroupMonterey, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas F.h. Stienstra among 926 rheumatology physician records in California
Nicholas F.h. Stienstra, M.D. is one of 926 rheumatology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 82% of them.
- NPI issued2015 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2015 · median 2003 among the 641 with a school on file
- Record last updated2021 · 62% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Monterey → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Muneera AtchaSalinas, CA 939011154611796
- Lauren Berry, MDSalinas, CA 939011932660404
- Marc Lieberman, MDSalinas, CA 939011528159092
- Susie Suh, M.DSalinas, CA 939011467459602
- Herbert Fisher, M.D.Burlingame, CA 940101194829127
- Spencer Lowe, M.D.Burlingame, CA 940101134213572
- Ernesto Zatarain-Rios, MDBurlingame, CA 940101487720439
- Zi Ying Li, M.DDaly City, CA 940151588160550
Common questions
What is Nicholas F.h. Stienstra, M.D.'s NPI number?
Nicholas F.h. Stienstra, M.D.'s National Provider Identifier (NPI) is 1033505581, issued on Apr 11, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas F.h. Stienstra, M.D. located?
The NPPES record lists a practice address at 2 Upper Ragsdale Dr Bldg A, Monterey, CA, 93940. Phone: (831) 333-3040. Providers update this record themselves, so call before visiting.
How can I verify Nicholas F.h. Stienstra, M.D.'s license?
NPPES lists California license number A170493, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nicholas F.h. Stienstra, M.D. prescribe under Medicare Part D?
In 2024, Nicholas F.h. Stienstra, M.D. had 1,840 Medicare Part D claims for 279 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Nicholas F.h. Stienstra, M.D.'s MIPS final score?
The 2023 MIPS final score is 77.8 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.