Gregory David Weygandt, DO
Family Medicine Physician · San Diego, CA
Gregory David Weygandt, DO is a family medicine physician with a practice address in San Diego, California, and NPI 1336728559, issued on Apr 5, 2021. Check the license (California 20A20464, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory David Weygandt
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A20464 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4094 4TH Ave, San Diego, CA 92103
- Phone
- (619) 515-2545
- Enumerated
- Apr 5, 2021
- Record last updated
- Jul 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20240424003534); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2021
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 4094 4TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan AllenMarriage & Family Therapist1780939470
- Jennifer Asuncion, LCSWClinical Social Worker1083056279
- Renaldo Barrios, NPAdult Health Nurse Practitioner1609865740
- Donald Beeler, NPFamily Nurse Practitioner1356705529
- Lisa Benton, ARNPFamily Nurse Practitioner1487933545
- Chase Billotte, DPTPhysical Therapist1689064214
Verify Gregory David Weygandt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A20464Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
127 Medicare Part D claims for 26 beneficiaries, against an average of 3,544 among the 117,163 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: $496.54
5 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 55,478 providers of this specialty with any payment received $902.55 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.
Bills Medicare through one group practice
- Family Health Centers OF San Diego IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory David Weygandt among 17,133 family medicine physician records in California
Gregory David Weygandt, DO 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 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2021 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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
- Suraj Achar, M.D.San Diego, CA 921031235167321
- Arthur Blain, M.D.San Diego, CA 921031801816525
- Ian Diaz, MDSan Diego, CA 921031023038411
- Theodore Ganiats, M.D.San Diego, CA 921031659303170
- Cecilia Gutierrez, M.D.San Diego, CA 921031780600528
- Esmatullah HatamySan Diego, CA 921031659329837
- Gene Kallenberg, M.D.San Diego, CA 921031861417446
- Stacey Layle, MDSan Diego, CA 921031437112349
Common questions
What is Gregory David Weygandt, DO's NPI number?
Gregory David Weygandt, DO's National Provider Identifier (NPI) is 1336728559, issued on Apr 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Gregory David Weygandt, DO located?
The NPPES record lists a practice address at 4094 4TH Ave, San Diego, CA, 92103. Phone: (619) 515-2545. Providers update this record themselves, so call before visiting.
How can I verify Gregory David Weygandt, DO's license?
NPPES lists California license number 20A20464, 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 Gregory David Weygandt, DO prescribe under Medicare Part D?
In 2024, Gregory David Weygandt, DO had 127 Medicare Part D claims for 26 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.