Heidi J. Iwanski, MD
Psychiatry Physician · Seattle, WA
Heidi J. Iwanski, MD is a psychiatry physician with a practice address in Seattle, Washington, and NPI 1992890503, issued on Oct 3, 2006. Check the license (Washington MD60151743, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Heidi J. Iwanski
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD60151743 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3501 NE 91St St, Seattle, WA 98115
- Phone
- (206) 557-1992
- Enumerated
- Oct 3, 2006
- Record last updated
- Aug 28, 2024
- Fax
- (206) 557-1998
- Medicaid ID
- 014912800 MN
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Verify Heidi J. Iwanski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60151743Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Heidi J. Iwanski among 1,195 psychiatry physician records in Washington
Heidi J. Iwanski, MD is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 57% newer
- In a Medicare fileNo · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2024 · 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 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
485 psychiatry physician records list a practice address in Seattle
They are 485 of the 41,956 NPPES records with a practice address in Seattle, and 1,195 psychiatry physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,195 in Washington → Every provider in Seattle → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Alison ChengSeattle, WA 981151063090611
- Douglas Christie, M.D.Seattle, WA 981151275894404
- Phillip Cohen, M.D.Seattle, WA 981151629149828
- Matthew Dandois, DOSeattle, WA 981151497137525
- Frederick Davis, MDSeattle, WA 981151205930294
- Chelsea Hogan, MDSeattle, WA 981151225598345
- Robin Kang, MDSeattle, WA 981151285048652
- Elizabeth Lufburrow, MDSeattle, WA 981151972686731
Common questions
What is Heidi J. Iwanski, MD's NPI number?
Heidi J. Iwanski, MD's National Provider Identifier (NPI) is 1992890503, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Heidi J. Iwanski, MD located?
The NPPES record lists a practice address at 3501 NE 91St St, Seattle, WA, 98115. Phone: (206) 557-1992. Providers update this record themselves, so call before visiting.
How can I verify Heidi J. Iwanski, MD's license?
NPPES lists Washington license number MD60151743, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.