Timothy R. Adamos, MD
Pediatric Gastroenterology Physician · Seattle, WA
Timothy R. Adamos, MD is a pediatric gastroenterology physician with a practice address in Seattle, Washington, and NPI 1215430012, issued on Mar 18, 2018. Check the license (Washington MD61534500, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Timothy R. Adamos
- Credential
- MD
- Primary taxonomy
- Pediatric Gastroenterology Physician 2080P0206X
- License numbers
- MD61534500 WA
A166231 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4800 Sand Point Way NE, Seattle, WA 98105
- Phone
- (206) 987-2521
- Enumerated
- Mar 18, 2018
- Record last updated
- Jun 16, 2026
- Medicare enrollment
- Enrolled (PECOS I20240828004054); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric gastroenterology physician records → All 40 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.
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- Ilyse Abrams, NPPediatric Nurse Practitioner1730108333
- Evan Abrass, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1598237919
- Seja AbudiabPediatrics Physician1285166173
- Michele Acker, ARNPPediatric Nurse Practitioner1720019094
Verify Timothy R. Adamos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61534500Check 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: $118.96
1 payment: food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 1,184 providers of this specialty with any payment received $2,585.05 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.
Bills Medicare through one group practice
- The Association OF Chrmc And University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy R. Adamos among 40 pediatric gastroenterology physician records in Washington
Timothy R. Adamos, MD is one of 40 pediatric gastroenterology physician records with a practice address in Washington. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 83% of them.
- NPI issued2018 · 83% of these records are older, 8% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileYes · 35% of these records are
- Graduated2018 · median 2007 among the 14 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0206X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Gastroenterology Physician providers in Washington
There are 40 pediatric gastroenterology physician records in Washington.
All 40 in Washington → Every provider in Seattle → Pediatric Gastroenterology Physician nationwide →
The 8 pediatric gastroenterology physician records with the nearest ZIP codes
- Lusine Ambartsumyan, M.D.Seattle, WA 981051912162538
- Dennis ChristieSeattle, WA 981051851472112
- Evelyn Hsu, M.D.Seattle, WA 981051346459658
- Erin Lane, M.D.Seattle, WA 981051932408192
- Dale Lee, M.D.Seattle, WA 981051396945630
- Mary LenSeattle, WA 981051538240882
- Michael Pickens, D.O.Seattle, WA 981051912195751
- Fateema Rose, M.D.Seattle, WA 981051154620680
Common questions
What is Timothy R. Adamos, MD's NPI number?
Timothy R. Adamos, MD's National Provider Identifier (NPI) is 1215430012, issued on Mar 18, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Timothy R. Adamos, MD located?
The NPPES record lists a practice address at 4800 Sand Point Way NE, Seattle, WA, 98105. Phone: (206) 987-2521. Providers update this record themselves, so call before visiting.
How can I verify Timothy R. Adamos, MD's license?
NPPES lists Washington license number MD61534500, 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.