NPPES file of Aug 9, 2026

Jonathan C. Gamson, MD

Family Medicine Physician · Mount Vernon, WA

Jonathan C. Gamson, MD is a family medicine physician with a practice address in Mount Vernon, Washington, and NPI 1639172927, issued on May 31, 2005. Check the license (Washington MD00036055, as entered in NPPES) 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
1639172927
Name
Jonathan C. Gamson
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD00036055 WA
Self-reported in NPPES; status is on the state search
Practice location
2116 E Section St, Mount Vernon, WA 98274
Phone
(360) 428-1700
Enumerated
May 31, 2005
Record last updated
Apr 27, 2026
Fax
(360) 848-4350
Medicare enrollment
Enrolled (PECOS I20100913001016); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 1995
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2116 E Section St

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

  1. Abigail Britanyak, ARNPFamily Nurse Practitioner1740904200
  2. Marissa Capasso, D.O.Family Medicine Physician1609238765
  3. Carrie Downing-Larick, DO, MPHFamily Medicine Physician1134749245
  4. Amanda Duperron, ARNPFamily Nurse Practitioner1164272431
  5. Roger Estep, M.D.Family Medicine Physician1033112479
  6. Catherine Gambs, MDFamily Medicine Physician1952698102

Verify Jonathan C. Gamson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00036055
    Check 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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38% more Medicare Part D claims than the average family medicine physician in 2024

4,884 Medicare Part D claims for 375 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 270 claims were for opioids.

  1. Jonathan Gamson4,884
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium369 claims
  2. Lisinopril241 claims
  3. Amlodipine Besylate229 claims
  4. Losartan Potassium205 claims
  5. Levothyroxine Sodium160 claims
  6. Omeprazole155 claims

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.

Bills Medicare through 2 group practices

  1. Family Care Network, PLLCMount Vernon, WA
  2. Public Hospital Dist NO 1 SkagitMount Vernon, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

78 family medicine physician records list a practice address in Mount Vernon

They are 78 of the 1,500 NPPES records with a practice address in Mount Vernon, and 5,534 family medicine physician records in Washington.

Other family medicine physician records in Washington

  1. Shawn Aaron, MDLongview, WA1578560710
  2. John Abano, M.D.Shoreline, WA1891929857
  3. Sarah Abbot, DOKirkland, WA1033555180
  4. Arthur Abbott, M.D.Seattle, WA1255488847
  5. Dale Abbott, MDBurlington, WA1760453534
  6. Michael Abbott, MDEast Wenatchee, WA1336179928
  7. Richard Abbott, M.D.Mount Vernon, WA1689835803
  8. Charlee Abboud, DOTacoma, WA1174152169
  9. Suad AbdelazizSeattle, WA1306423421
  10. Joonis Abdulkhader, M.D.Seattle, WA1518154335

Common questions

What is Jonathan C. Gamson, MD's NPI number?

Jonathan C. Gamson, MD's National Provider Identifier (NPI) is 1639172927, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan C. Gamson, MD located?

The NPPES record lists a practice address at 2116 E Section St, Mount Vernon, WA, 98274. Phone: (360) 428-1700. Providers update this record themselves, so call before visiting.

How can I verify Jonathan C. Gamson, MD's license?

NPPES lists Washington license number MD00036055, 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.

How much does Jonathan C. Gamson, MD prescribe under Medicare Part D?

In 2024, Jonathan C. Gamson, MD had 4,884 Medicare Part D claims for 375 beneficiaries; 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.