Erwin Guzman, MD
Family Medicine Physician · San Diego, CA
Erwin Guzman, MD is a family medicine physician with a practice address in San Diego, California, and NPI 1013065002, issued on Jan 8, 2007. Check the license (California A70779, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erwin Guzman
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A70779 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4647 Zion Ave, San Diego, CA 92120
- Phone
- (619) 528-5000
- Enumerated
- Jan 8, 2007
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080603000883); accepts Medicare assignment
- Medical or professional school
- Un Of California, Irvine, College Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 4647 Zion Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samy Abdou, MDNeurological Surgery Physician1215085006
- Samvel Abelyan, PHARMDPharmacist1306629928
- Ali Aboutaleb, MDFamily Medicine Physician1821261405
- Patricia Achilly, CNMAdvanced Practice Midwife1932257847
- Linda Adams, PAPhysician Assistant1427174689
- Mette-Margrethe Adkisson, M.D.Emergency Medicine Physician1528288081
Verify Erwin Guzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A70779Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average family medicine physician in 2024
562 Medicare Part D claims for 376 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Albuterol Sulfate Hfa36 claims
- Amoxicillin-Clavulanate Potass31 claims
- Cephalexin29 claims
- Cefadroxil26 claims
- Doxycycline Monohydrate26 claims
- Meloxicam26 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
- Southern California Permanente Medical GroupSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erwin Guzman among 17,133 family medicine physician records in California
Erwin Guzman, 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1998 · 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).
780 family medicine physician records list a practice address in San Diego
They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Diego → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richard Brown, MDSan Diego, CA 921201528139565
- Abigail Buhain, MDSan Diego, CA 921201043252489
- Margaret Elizondo, M.D.San Diego, CA 921201386696466
- Nancy Green, MDSan Diego, CA 921201861569790
- Daniel Hiser, M.D.San Diego, CA 921201376577973
- Vincent Kater, M.D.San Diego, CA 921201629057005
- Ronald Kerr, MDSan Diego, CA 921201114094067
- Christine Ko, MDSan Diego, CA 921201265466551
Common questions
What is Erwin Guzman, MD's NPI number?
Erwin Guzman, MD's National Provider Identifier (NPI) is 1013065002, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Erwin Guzman, MD located?
The NPPES record lists a practice address at 4647 Zion Ave, San Diego, CA, 92120. Phone: (619) 528-5000. Providers update this record themselves, so call before visiting.
How can I verify Erwin Guzman, MD's license?
NPPES lists California license number A70779, 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 Erwin Guzman, MD prescribe under Medicare Part D?
In 2024, Erwin Guzman, MD had 562 Medicare Part D claims for 376 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.