Gigiyakuan Su, M.D.
Family Medicine Physician · Antioch, CA
Gigiyakuan Su, M.D. is a family medicine physician with a practice address in Antioch, California, and NPI 1780692830, issued on Aug 4, 2006. Check the license (California A63427, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gigiyakuan Su
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A63427 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2335 Country Hills Dr, Antioch, CA 94509
- Phone
- (925) 608-8500
- Enumerated
- Aug 4, 2006
- Record last updated
- Apr 17, 2026
- Fax
- (925) 608-8652
- Medicaid ID
- 00A634270 CA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2335 Country Hills Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Aziz, AMFTMarriage & Family Therapist1144778226
- Lauren CanadaStudent in an Organized Health Care Education/Training Program1396633954
- Cynthia ChavezDay Training/Habilitation Specialist1588598635
- Diana Dopchiz De Martin, LMFTMarriage & Family Therapist1740596360
- Desiree EspinozaPediatric Nurse Practitioner1164940284
- Talia Firestein, MDFamily Medicine Physician1184966707
Verify Gigiyakuan Su in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A63427Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average family medicine physician in 2024
1,720 Medicare Part D claims for 149 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Atorvastatin Calcium133 claims
- Lisinopril75 claims
- Metformin Hcl Er69 claims
- Omeprazole58 claims
- Levothyroxine Sodium53 claims
- Gabapentin51 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.
Gigiyakuan Su among 17,133 family medicine physician records in California
Gigiyakuan Su, M.D. 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 fileNo · 62% of these records are
- Record last updated2026 · 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).
30 family medicine physician records list a practice address in Antioch
They are 30 of the 2,184 NPPES records with a practice address in Antioch, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Antioch → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Seema Cameron, MDAntioch, CA 945091134369465
- Randolph Clarke, M.D.Antioch, CA 945091538187612
- John Copeland, MDAntioch, CA 945091649259961
- James Edwards, M.D.Antioch, CA 945091508885005
- Talia Firestein, MDAntioch, CA 945091184966707
- Douglas Folsom, MDAntioch, CA 945091831260470
- Naoko Ikeda, DOAntioch, CA 945091952403909
- Hamidreza Khonsari, M.D.Antioch, CA 945091306874714
Common questions
What is Gigiyakuan Su, M.D.'s NPI number?
Gigiyakuan Su, M.D.'s National Provider Identifier (NPI) is 1780692830, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gigiyakuan Su, M.D. located?
The NPPES record lists a practice address at 2335 Country Hills Dr, Antioch, CA, 94509. Phone: (925) 608-8500. Providers update this record themselves, so call before visiting.
How can I verify Gigiyakuan Su, M.D.'s license?
NPPES lists California license number A63427, 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 Gigiyakuan Su, M.D. prescribe under Medicare Part D?
In 2024, Gigiyakuan Su, M.D. had 1,720 Medicare Part D claims for 149 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.