Estelle I. Yamaki, MD
Gynecology Physician · Federal Way, WA
Estelle I. Yamaki, MD is a gynecology physician with a practice address in Federal Way, Washington, and NPI 1154412146, issued on Sep 27, 2006. Check the license (Washington 025209MD00021801, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Estelle I. Yamaki
- Credential
- MD
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- 025209MD00021801 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2319 SW 320TH St, Federal Way, WA 98023
- Phone
- (253) 838-8733
- Enumerated
- Sep 27, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (253) 927-6911
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 70 in Washington → Look up another NPI →
Also registered at 2319 SW 320TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Faisa Farole, LICENSE MIDWIFEMidwife1275865651
- Saharla HassanDoula1891634390
- Fartun IsahaqDoula1033004023
- Parminderjit KaurDoula1184446726
- Carmen Lewis, RN, IBCLCRegistered Nurse1568809309
- Sumaya UthmaanDoula1043880735
Verify Estelle I. Yamaki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license 025209MD00021801Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average gynecology physician in 2024
31 Medicare Part D claims, against an average of 299 among the 1,919 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.
Estelle I. Yamaki among 70 gynecology physician records in Washington
Estelle I. Yamaki, MD is one of 70 gynecology physician records with a practice address in Washington. 41% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 27% newer
- In a Medicare fileYes · 41% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2007 · 77% 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 Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in Washington
There are 70 gynecology physician records in Washington.
All 70 in Washington → Every provider in Federal Way → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Michael Lau, M.D.Edmonds, WA 980261437189347
- Roger Shelton, M.D.Edmonds, WA 980261073543971
- Kathryn Arendt, M.D.Kirkland, WA 980341639157613
- Rohan Hattiangadi, M.D.Kirkland, WA 980341194143073
- John Heffron, M.D.Kirkland, WA 980341487761797
- Charles Heffron, M.D.Kirkland, WA 980341154438463
- Karen Ilika, M.D.Kirkland, WA 980341558317131
- Mary Oconnell, MDBothell, WA 980111942264262
Common questions
What is Estelle I. Yamaki, MD's NPI number?
Estelle I. Yamaki, MD's National Provider Identifier (NPI) is 1154412146, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Estelle I. Yamaki, MD located?
The NPPES record lists a practice address at 2319 SW 320TH St, Federal Way, WA, 98023. Phone: (253) 838-8733. Providers update this record themselves, so call before visiting.
How can I verify Estelle I. Yamaki, MD's license?
NPPES lists Washington license number 025209MD00021801, 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 Estelle I. Yamaki, MD prescribe under Medicare Part D?
In 2024, Estelle I. Yamaki, MD had 31 Medicare Part D claims; 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.