Mason W. Oltman, MD
Pediatrics Physician · Seattle, WA
Mason W. Oltman, MD is a pediatrics physician with a practice address in Seattle, Washington, and NPI 1770679888, issued on Oct 5, 2006. Check the license (Washington MD00045063, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mason W. Oltman
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- MD00045063 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2211 Queen Anne Ave N, Seattle, WA 98109
- Phone
- (206) 861-8500
- Enumerated
- Oct 5, 2006
- Record last updated
- Apr 15, 2022
- Fax
- (206) 861-8501
- Medicaid IDs
- 8436289 WA
1045617 WA - Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,753 in Washington → Look up another NPI →
Also registered at 2211 Queen Anne Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rachael Banda, DOFamily Medicine Physician1306378575
- Amelia Beckstead, ARNPFamily Nurse Practitioner1487369641
- Clara Chan, MDFamily Medicine Physician1740364462
- Matthew Fradkin, M.DPediatrics Physician1013282581
- Stephanie Hodges, MDFamily Medicine Physician1255741419
Verify Mason W. Oltman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00045063Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mason W. Oltman among 1,753 pediatrics physician records in Washington
Mason W. Oltman, MD is one of 1,753 pediatrics physician records with a practice address in Washington. 14% 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, 59% newer
- In a Medicare fileNo · 14% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2022 · 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 208000000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
544 pediatrics physician records list a practice address in Seattle
They are 544 of the 41,956 NPPES records with a practice address in Seattle, and 1,753 pediatrics physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,753 in Washington → Every provider in Seattle → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Matthew Fradkin, M.DSeattle, WA 981091013282581
- Natasha Namjoshi, M.D.Seattle, WA 981091144601154
- Benjamin Starnes, MDSeattle, WA 981091548345283
- Emily Bronec, MDBainbridge Island, WA 981101023317542
- Bryan Dryer, MDBainbridge Island, WA 981101639136922
- Grace Lim, MD, MPHSeattle, WA 981081093057499
- Molly Linhardt, MDBainbridge Island, WA 981101134273089
- Thomas Monk, MDBainbridge Island, WA 981101861400970
Common questions
What is Mason W. Oltman, MD's NPI number?
Mason W. Oltman, MD's National Provider Identifier (NPI) is 1770679888, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mason W. Oltman, MD located?
The NPPES record lists a practice address at 2211 Queen Anne Ave N, Seattle, WA, 98109. Phone: (206) 861-8500. Providers update this record themselves, so call before visiting.
How can I verify Mason W. Oltman, MD's license?
NPPES lists Washington license number MD00045063, 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.