Gordon Colin Gunn, MD
Gynecology Physician · Fullerton, CA
Gordon Colin Gunn, MD is a gynecology physician with a practice address in Fullerton, California, and NPI 1194829184, issued on Sep 11, 2006. Check the license (California C27175, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gordon Colin Gunn
- Credential
- MD
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- C27175 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 E Valencia Mesa Dr, Fullerton, CA 92835
- Phone
- (714) 912-2211
- Enumerated
- Sep 11, 2006
- Record last updated
- Mar 21, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (714) 213-8750
- Medicaid ID
- 00C271750 CA
- Medicare enrollment
- Enrolled (PECOS I20110513000679); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 1964
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 369 in California → Look up another NPI →
Also registered at 100 E Valencia Mesa Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- May Ali, PA-CSurgical Physician Assistant1952589459
- Donald Armstrong, M.D.Gynecology Physician1881672665
- Serhat Aytug, M.D.Endocrinology, Diabetes & Metabolism Physician1194707471
- Ricarda Benz, M.D.Gynecology Physician1669453254
- Jeffrey Bodwin, MDEndocrinology, Diabetes & Metabolism Physician1932195476
- Dennis Briley, PASurgical Physician Assistant1174731640
Verify Gordon Colin Gunn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C27175Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.6 times the Medicare Part D claims of the average gynecology physician in 2024
1,670 Medicare Part D claims for 90 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D.
Most prescribed
- Ezetimibe166 claims
- Rosuvastatin Calcium154 claims
- Levothyroxine Sodium100 claims
- Jardiance80 claims
- Progesterone73 claims
- Estradiol58 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.
Gordon Colin Gunn among 369 gynecology physician records in California
Gordon Colin Gunn, MD is one of 369 gynecology physician records with a practice address in California. 60% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 40% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1964 · median 1995 among the 141 with a school on file
- Record last updated2013 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in California
There are 369 gynecology physician records in California.
All 369 in California → Every provider in Fullerton → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Donald Armstrong, M.D.Fullerton, CA 928351881672665
- Ricarda Benz, M.D.Fullerton, CA 928351669453254
- Thomas Hughes, MDFullerton, CA 928351578520722
- Bo Young Suh, MDFullerton, CA 928351942351978
- Jongsook Park, MDGarden Grove, CA 928431821052630
- Ban Doan, M.DGarden Grove, CA 928441346201696
- Richard Goldman, MDVilla Park, CA 928611558594994
- Ulhas Balasubramaniam, M.D.Anaheim, CA 928071669646931
Common questions
What is Gordon Colin Gunn, MD's NPI number?
Gordon Colin Gunn, MD's National Provider Identifier (NPI) is 1194829184, issued on Sep 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gordon Colin Gunn, MD located?
The NPPES record lists a practice address at 100 E Valencia Mesa Dr, Fullerton, CA, 92835. Phone: (714) 912-2211. Providers update this record themselves, so call before visiting.
How can I verify Gordon Colin Gunn, MD's license?
NPPES lists California license number C27175, 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 Gordon Colin Gunn, MD prescribe under Medicare Part D?
In 2024, Gordon Colin Gunn, MD had 1,670 Medicare Part D claims for 90 beneficiaries; the average among gynecology physician prescribers was 299. 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.