Dean F. Mayer, M.D.
Rheumatology Physician · La Mesa, CA
Dean F. Mayer, M.D. is a rheumatology physician with a practice address in La Mesa, California, and NPI 1609886019, issued on Aug 8, 2006. Check the license (California A87030, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dean F. Mayer
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A87030 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5525 Grossmont Center Dr, La Mesa, CA 91942
- Phone
- (619) 644-6750
- Enumerated
- Aug 8, 2006
- Record last updated
- Jun 25, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (619) 644-1139
- Medicaid ID
- 00A870300 CA
- Medicare enrollment
- Enrolled (PECOS I20040927001229); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 5525 Grossmont Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashkan Abedini, MDFamily Medicine Physician1013546373
- Cynthia Adams, PA-CMedical Physician Assistant1447564141
- Alicia Afrah-Boateng, PA-CPhysician Assistant1174073886
- Sonal Agrawal, M.D.Pediatrics Physician1881702348
- Mary Alexander, M.D.Internal Medicine Physician1538177845
- James Amberg, MDFamily Medicine Physician1265497093
Verify Dean F. Mayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A87030Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,796 Medicare Part D claims for 256 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Prednisone464 claims
- Methotrexate390 claims
- Hydroxychloroquine Sulfate172 claims
- Folic Acid150 claims
- Leflunomide59 claims
- Allopurinol47 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): 73.6 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
- Sharp Rees-Stealy Medical Group IncLa Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dean F. Mayer among 926 rheumatology physician records in California
Dean F. Mayer, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1998 · median 2003 among the 641 with a school on file
- Record last updated2013 · 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 La Mesa → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Akther Kotha, MDLa Mesa, CA 919421780609503
- Roshan Kotha, M.DLa Mesa, CA 919421417117839
- James Malinak, M.D.La Mesa, CA 919411497867501
- Rafid Asfar, M.D..Chula Vista, CA 919111639468747
- Rachel Peterson, MDChula Vista, CA 919111447615588
- Brian Anderson, M.D.Chula Vista, CA 919101740298074
- Henry Krumholz, MDChula Vista, CA 919101487765343
- Thuthiri Lwin, M.D.Chula Vista, CA 919101174010896
Common questions
What is Dean F. Mayer, M.D.'s NPI number?
Dean F. Mayer, M.D.'s National Provider Identifier (NPI) is 1609886019, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dean F. Mayer, M.D. located?
The NPPES record lists a practice address at 5525 Grossmont Center Dr, La Mesa, CA, 91942. Phone: (619) 644-6750. Providers update this record themselves, so call before visiting.
How can I verify Dean F. Mayer, M.D.'s license?
NPPES lists California license number A87030, 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 Dean F. Mayer, M.D. prescribe under Medicare Part D?
In 2024, Dean F. Mayer, M.D. had 1,796 Medicare Part D claims for 256 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Dean F. Mayer, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 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.