Gretchen A. Weitkamp, MD
Family Medicine Physician · Seattle, WA
Gretchen A. Weitkamp, MD is a family medicine physician with a practice address in Seattle, Washington, and NPI 1871664870, issued on Nov 13, 2006. Check the license (Washington MD00031146, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Gretchen A. Weitkamp
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00031146 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1600 E Jefferson St Ste 510, Seattle, WA 98122
- Phone
- (206) 320-4888
- Enumerated
- Nov 13, 2006
- Record last updated
- Oct 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (206) 320-4203
- Medicaid ID
- 8157539 WA
- Medicare enrollment
- Enrolled (PECOS I20100514000470); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 1600 E Jefferson St Ste 510
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gretchen A. Weitkamp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00031146Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average family medicine physician in 2024
3,527 Medicare Part D claims for 251 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 120 claims were for opioids.
Most prescribed
- Atorvastatin Calcium277 claims
- Amlodipine Besylate243 claims
- Losartan Potassium165 claims
- Levothyroxine Sodium155 claims
- Hydrochlorothiazide128 claims
- Gabapentin125 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 2 group practices
- Swedish Health ServicesSeattle, WA
- Swedish Health ServicesSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gretchen A. Weitkamp among 5,534 family medicine physician records in Washington
Gretchen A. Weitkamp, 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
- Graduated1991 · median 2009 among the 3,294 with a school on file
- Record last updated2020 · 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
- William Alto, MD, MPHSeattle, WA 981221962478073
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- Sharon Grayson, MDSeattle, WA 981221700806734
- Anne Hirsch, ARNPSeattle, WA 981221710972666
- Jane King, M.D.Seattle, WA 981221518956226
- Sarah Lesko, M.D.Seattle, WA 981221447220439
- Monica Mayhill, MDSeattle, WA 981221902858061
- Robert McIntyre, M.D.Seattle, WA 981221689770216
Common questions
What is Gretchen A. Weitkamp, MD's NPI number?
Gretchen A. Weitkamp, MD's National Provider Identifier (NPI) is 1871664870, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gretchen A. Weitkamp, MD located?
The NPPES record lists a practice address at 1600 E Jefferson St Ste 510, Seattle, WA, 98122. Phone: (206) 320-4888. Providers update this record themselves, so call before visiting.
How can I verify Gretchen A. Weitkamp, MD's license?
NPPES lists Washington license number MD00031146, 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 Gretchen A. Weitkamp, MD prescribe under Medicare Part D?
In 2024, Gretchen A. Weitkamp, MD had 3,527 Medicare Part D claims for 251 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.