Christopher H. Gaynor, MD
Family Medicine Physician · Seattle, WA
Christopher H. Gaynor, MD is a family medicine physician with a practice address in Seattle, Washington, and NPI 1023085495, issued on Mar 3, 2006. Check the license (Washington MD00032958, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Christopher H. Gaynor
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00032958 WA
Self-reported in NPPES; status is on the state search - Practice location
- 611 12TH Ave S, Seattle, WA 98144
- Phone
- (206) 324-9360
- Enumerated
- Mar 3, 2006
- Record last updated
- Feb 7, 2022
- Fax
- (206) 324-8910
- Medicaid ID
- 1109230 WA
- Medicare enrollment
- Enrolled (PECOS I20060605000208); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 611 12TH Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jonathan Albert, RDNRegistered Dietitian1912634569
- Cecilia Arnoux, MSWSocial Worker1871166348
- Jacob BacaSocial Worker1881459956
- Adrian Bailey, LHMental Health Counselor1013207703
- Korlette BirdAddiction (Substance Use Disorder) Counselor1336773951
- Jordyn BiseClinical Social Worker1194643130
Verify Christopher H. Gaynor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00032958Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
497 Medicare Part D claims for 37 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Levothyroxine Sodium21 claims
- Atorvastatin Calcium18 claims
- Rosuvastatin Calcium18 claims
- Fluticasone Propionate17 claims
- Hydrochlorothiazide17 claims
- Ozempic17 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
- Seattle Indian Health BoardSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher H. Gaynor among 5,534 family medicine physician records in Washington
Christopher H. Gaynor, MD is one of 5,534 family medicine physician records with a practice address in Washington. 73% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1993 · median 2009 among the 3,294 with a school on file
- Record last updated2022 · 57% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
871 family medicine physician records list a practice address in Seattle
They are 871 of the 41,956 NPPES records with a practice address in Seattle, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Seattle → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Carla Ainsworth, MDSeattle, WA 981441780662908
- Tuoc Do, M.D.Seattle, WA 981441871643676
- Ari Gilmore, M.D.Seattle, WA 981441750544532
- Ellen Lackerman, M.D.Seattle, WA 981441710976485
- Adriana Lungu, MDSeattle, WA 981441033141544
- Theresa Maresca, MDSeattle, WA 981441932177664
- Kenneth Mayeda, M.D.Seattle, WA 981441770519217
- David Nguyen, MDSeattle, WA 981441700822103
Common questions
What is Christopher H. Gaynor, MD's NPI number?
Christopher H. Gaynor, MD's National Provider Identifier (NPI) is 1023085495, issued on Mar 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher H. Gaynor, MD located?
The NPPES record lists a practice address at 611 12TH Ave S, Seattle, WA, 98144. Phone: (206) 324-9360. Providers update this record themselves, so call before visiting.
How can I verify Christopher H. Gaynor, MD's license?
NPPES lists Washington license number MD00032958, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher H. Gaynor, MD prescribe under Medicare Part D?
In 2024, Christopher H. Gaynor, MD had 497 Medicare Part D claims for 37 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.