Bruce J. Dreyfuss, M.D.
Rheumatology Physician · San Jose, CA
Bruce J. Dreyfuss, M.D. is a rheumatology physician with a practice address in San Jose, California, and NPI 1558366047, issued on Jun 20, 2005. Check the license (California G64297, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bruce J. Dreyfuss
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- G64297 CA
FAC52131 CA
RHC142268 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25 N 14TH St, San Jose, CA 95112
- Phone
- (408) 288-6623
- Enumerated
- Jun 20, 2005
- Record last updated
- Feb 5, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (408) 288-6698
- Medicaid ID
- 5148629 CA
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 25 N 14TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shahnaz Achackzad, NPCNurse Practitioner1801296272
- Angelica BandaRehabilitation Practitioner1679165138
- Harold Baumstein, DDSGeneral Practice Dentistry1356480461
- Raymond Chan, PTAPhysical Therapy Assistant1144693193
- Lucila ChavezMental Health Counselor1720580178
- Dominique Churnetski-HayesCounselor1811639396
Verify Bruce J. Dreyfuss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G64297Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average rheumatology physician in 2024
48 Medicare Part D claims, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $111.16
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bruce J. Dreyfuss among 926 rheumatology physician records in California
Bruce J. Dreyfuss, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2009 · 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 San Jose → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Khurram Abbass, MDSan Jose, CA 951161154455178
- Saigeetha Sundaramurthy, M.D.San Jose, CA 951161609987932
- Henry Co, MDSan Jose, CA 951191699853267
- Jennifer Lee, M.D.San Jose, CA 951191275519092
- Jan Lin, MDSan Jose, CA 951191841326386
- Helen Feng, MDSan Jose, CA 951241629174149
- Arina Garg, M.D.San Jose, CA 951241568803815
- Joseph Isaacson, MDSan Jose, CA 951241356305551
Common questions
What is Bruce J. Dreyfuss, M.D.'s NPI number?
Bruce J. Dreyfuss, M.D.'s National Provider Identifier (NPI) is 1558366047, issued on Jun 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Bruce J. Dreyfuss, M.D. located?
The NPPES record lists a practice address at 25 N 14TH St, San Jose, CA, 95112. Phone: (408) 288-6623. Providers update this record themselves, so call before visiting.
How can I verify Bruce J. Dreyfuss, M.D.'s license?
NPPES lists California license number G64297, 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 Bruce J. Dreyfuss, M.D. prescribe under Medicare Part D?
In 2024, Bruce J. Dreyfuss, M.D. had 48 Medicare Part D claims; the average among rheumatology physician prescribers was 1,978. 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.