Heidi Wellenstein, MD
Internal Medicine Physician · Seattle, WA
Heidi Wellenstein, MD is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1306414743, issued on Jun 13, 2021. Check the license (Washington MD.MD.70013080, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Heidi Wellenstein
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD.MD.70013080 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 598-3300
- Enumerated
- Jun 13, 2021
- Record last updated
- Jul 8, 2026
- Medicare enrollment
- Enrolled (PECOS I20260521002706); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Heidi Wellenstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD.MD.70013080Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
240 Medicare Part D claims for 58 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium27 claims
- Dextroamphetamine-Amphetamine11 claims
- Omeprazole11 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.
Heidi Wellenstein among 3,079 internal medicine physician records in Washington
Heidi Wellenstein, MD is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2023 · median 2006 among the 1,852 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Julia Becke, MDSeattle, WA 981951306858451
- Hardeep Bhugra, MBBCHSeattle, WA 981951215940788
- Davonna Cufley, M.D.Seattle, WA 981951871582734
- Annie Fang, MDSeattle, WA 981951679572168
- Rebecca Gettelman, MDSeattle, WA 981951750491262
- Brian Goldstein, MDSeattle, WA 981951902821275
- Daniel Leung, MDSeattle, WA 981951104936731
- Xi Li, M.D.Seattle, WA 981951891737631
Common questions
What is Heidi Wellenstein, MD's NPI number?
Heidi Wellenstein, MD's National Provider Identifier (NPI) is 1306414743, issued on Jun 13, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Heidi Wellenstein, MD located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 598-3300. Providers update this record themselves, so call before visiting.
How can I verify Heidi Wellenstein, MD's license?
NPPES lists Washington license number MD.MD.70013080, 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 Heidi Wellenstein, MD prescribe under Medicare Part D?
In 2024, Heidi Wellenstein, MD had 240 Medicare Part D claims for 58 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.