NPPES file of Aug 9, 2026

Mark G. Strom, M.D.

Family Medicine Physician · Seattle, WA

Mark G. Strom, M.D. is a family medicine physician with a practice address in Seattle, Washington, and NPI 1114123718, issued on Jun 21, 2007. Check the license on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114123718
Name
Mark G. Strom
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
Practice location
1370 Stewart St, Seattle, WA 98109
Phone
(425) 922-7576
Enumerated
Jun 21, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1370 Stewart St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Barbara Blackburn, MC. LMHCMental Health Counselor1699825810
  2. Michele Levine, MA, LMHC, CMHSMental Health Counselor1932274321
  3. Gary Sarozek, LMHCMental Health Counselor1598820748

Verify Mark G. Strom in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical CommissionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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98% fewer Medicare Part D claims than the average family medicine physician in 2024

77 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Mark Strom77
  2. Specialty average3,544

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.

Mark G. Strom among 5,534 family medicine physician records in Washington

Mark G. Strom, M.D. is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 42% of them.

  • NPI issued2007 · 42% of these records are older, 47% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2007 · 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 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

871 family medicine physician records list a practice address in Seattle

They are 871 of the 41,956 NPPES records with a practice address in Seattle, and 5,534 family medicine physician records in Washington.

The 8 family medicine physician records with the nearest ZIP codes

  1. Clara Chan, MDSeattle, WA 981091740364462
  2. Arti Chandra, MDSeattle, WA 981091295819910
  3. Julie Craig, MDSeattle, WA 981091437362837
  4. Bruce Gardner, MDSeattle, WA 981091194815480
  5. Mark Johnson, MDSeattle, WA 981091528122751
  6. Alison Kneisl, MDSeattle, WA 981091578640108
  7. William McFadden, MDSeattle, WA 981091366478448
  8. Tina Neogi, MDSeattle, WA 981091336399419

Common questions

What is Mark G. Strom, M.D.'s NPI number?

Mark G. Strom, M.D.'s National Provider Identifier (NPI) is 1114123718, issued on Jun 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark G. Strom, M.D. located?

The NPPES record lists a practice address at 1370 Stewart St, Seattle, WA, 98109. Phone: (425) 922-7576. Providers update this record themselves, so call before visiting.

How can I verify Mark G. Strom, M.D.'s license?

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 Mark G. Strom, M.D. prescribe under Medicare Part D?

In 2024, Mark G. Strom, M.D. had 77 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.