Matthew N. Joseph, MD
Family Medicine Physician · Santa Rosa, CA
Matthew N. Joseph, MD is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1659455624, issued on Oct 25, 2006. Check the license (California A66520, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Matthew N. Joseph
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A66520 CA
Self-reported in NPPES; status is on the state search - Practice location
- 401 Bicentennial Way, Santa Rosa, CA 95403
- Phone
- (707) 571-4000
- Enumerated
- Oct 25, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A665200 CA
- Medicare enrollment
- Enrolled (PECOS I20031215000711); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 401 Bicentennial Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anna Ackerman, RNRegistered Nurse1376409409
- Patricia AdamsPhysical Therapist1124971825
- Hugo Aguilar, PHARMDPharmacist1992389134
- Heather Aiello, OTR/LOccupational Therapist1851155022
- Sandra Akrawi, REGISTERED DIETITIANRegistered Dietitian1790821031
- Miguel Alcala, LCSWClinical Social Worker1629857891
Verify Matthew N. Joseph in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A66520Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average family medicine physician in 2024
8,181 Medicare Part D claims for 1,138 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 544 claims were for opioids.
Most prescribed
- Atorvastatin Calcium525 claims
- Amlodipine Besylate263 claims
- Levothyroxine Sodium246 claims
- Hydrocodone-Acetaminophen240 claims
- Lisinopril234 claims
- Losartan Potassium200 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.
Bills Medicare through one group practice
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew N. Joseph among 17,133 family medicine physician records in California
Matthew N. Joseph, MD is one of 17,133 family medicine 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, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1997 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
264 family medicine physician records list a practice address in Santa Rosa
They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Rosa → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Robert Gabbay, D.O.Santa Rosa, CA 954031821028283
- Karen Gelphman, MDSanta Rosa, CA 954031972565703
- Jennifer Lee, MDSanta Rosa, CA 954031447288204
- Azra Mael, M.D.Santa Rosa, CA 954031477596518
- Patricia Mazzetti Hiserote, D.O.Santa Rosa, CA 954031821002593
- Neil Nathan, MDSanta Rosa, CA 954031174510788
- Amelia Randolph, MDSanta Rosa, CA 954031093739708
- Edward Rose, M.D.Santa Rosa, CA 954031750354106
Common questions
What is Matthew N. Joseph, MD's NPI number?
Matthew N. Joseph, MD's National Provider Identifier (NPI) is 1659455624, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Matthew N. Joseph, MD located?
The NPPES record lists a practice address at 401 Bicentennial Way, Santa Rosa, CA, 95403. Phone: (707) 571-4000. Providers update this record themselves, so call before visiting.
How can I verify Matthew N. Joseph, MD's license?
NPPES lists California license number A66520, 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 Matthew N. Joseph, MD prescribe under Medicare Part D?
In 2024, Matthew N. Joseph, MD had 8,181 Medicare Part D claims for 1,138 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.