Michael A. Portman
Pediatric Cardiology Physician · Seattle, WA
Michael A. Portman is a pediatric cardiology physician with a practice address in Seattle, Washington, and NPI 1669558342, issued on Oct 27, 2006. Check the license (Washington MD00029884, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Michael A. Portman
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License number
- MD00029884 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4800 Sand Point Way NE, Seattle, WA 98105
- Phone
- (206) 987-2000
- Enumerated
- Oct 27, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 8140535 WA
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 89 in Washington → Look up another NPI →
Also registered at 4800 Sand Point Way NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charlotte AagaardBehavior Technician1194350884
- Sergey Abeshaus, MDNeurological Surgery Physician1770870859
- Ilyse Abrams, NPPediatric Nurse Practitioner1730108333
- Evan Abrass, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1598237919
- Seja AbudiabPediatrics Physician1285166173
- Michele Acker, ARNPPediatric Nurse Practitioner1720019094
Verify Michael A. Portman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00029884Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $2,680.00
1 payment: consulting fee; the largest payer was Kiniksa Pharmaceuticals International, plc. The 1,156 providers of this specialty with any payment received $2,864.57 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Michael A. Portman among 89 pediatric cardiology physician records in Washington
Michael A. Portman is one of 89 pediatric cardiology physician records with a practice address in Washington. 60% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 63% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · 54% of these records are
- Record last updated2007 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in Washington
There are 89 pediatric cardiology physician records in Washington.
All 89 in Washington → Every provider in Seattle → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Terrence ChunSeattle, WA 981051144301409
- Jeffrey Conwell, M.D.Seattle, WA 981051518937978
- Troy JohnstonSeattle, WA 981051134219025
- Thomas JonesSeattle, WA 981051093805988
- Isamu KawaboriSeattle, WA 981051063502953
- Yuk Law, M.D.Seattle, WA 981051104869395
- Mark LewinSeattle, WA 981051689764573
- Tim McQuinn, MDSeattle, WA 981051841308889
Common questions
What is Michael A. Portman's NPI number?
Michael A. Portman's National Provider Identifier (NPI) is 1669558342, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael A. Portman located?
The NPPES record lists a practice address at 4800 Sand Point Way NE, Seattle, WA, 98105. Phone: (206) 987-2000. Providers update this record themselves, so call before visiting.
How can I verify Michael A. Portman's license?
NPPES lists Washington license number MD00029884, 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. 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.