NPPES file of Aug 9, 2026

Jenna Alise Williamson, MD

Internal Medicine Physician · Spokane, WA

Jenna Alise Williamson, MD is an internal medicine physician with a practice address in Spokane, Washington, and NPI 1891315149, issued on Apr 16, 2020. Check the license (Washington MD61423056, 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
1891315149
Name
Jenna Alise Williamson
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD61423056 WA
Self-reported in NPPES; status is on the state search
Practice location
624 E Front Ave, Spokane, WA 99202
Phone
(509) 626-9900
Enumerated
Apr 16, 2020
Record last updated
Jul 7, 2023
Medicare enrollment
Enrolled (PECOS I20230719001818); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 2020
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 624 E Front Ave

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

  1. Andrew Acob, M.D.Student in an Organized Health Care Education/Training Program1811422991
  2. Mohammad Alkheder, MDPsychiatry Physician1477176220
  3. Drew Anderson, MDStudent in an Organized Health Care Education/Training Program1083293575
  4. Henry Arguinchona, MDInfectious Disease Physician1740228170
  5. Ruth Armstrong, MDFamily Medicine Physician1093410235
  6. Jobe Ashby, MDInternal Medicine Physician1871288555

Verify Jenna Alise Williamson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD61423056
    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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91% fewer Medicare Part D claims than the average internal medicine physician in 2024

270 Medicare Part D claims for 117 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 14 claims were for opioids.

  1. Jenna Williamson270
  2. Specialty average3,176

Most prescribed

  1. Metoprolol Succinate18 claims
  2. Pantoprazole Sodium16 claims
  3. Losartan Potassium13 claims
  4. Amlodipine Besylate11 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. Northwest Hospital Medicine Physicians LLCAnacortes, WA
  2. South Sound Inpatient Physicians PLLCMount Vernon, WA

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

Jenna Alise Williamson among 3,079 internal medicine physician records in Washington

Jenna Alise Williamson, MD is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.

  • NPI issued2020 · 89% of these records are older, 9% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2020 · median 2006 among the 1,852 with a school on file
  • Record last updated2023 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

230 internal medicine physician records list a practice address in Spokane

They are 230 of the 14,049 NPPES records with a practice address in Spokane, and 3,079 internal medicine physician records in Washington.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Judy Benson, M.D.Spokane, WA 992021922081884
  2. Todd Gottschalk, DOSpokane, WA 992021457456873
  3. Michael Hixon, M.D.Spokane, WA 992021396850756
  4. Raluca Ionescu, MDSpokane, WA 992021497721211
  5. D'Arcy Johnson, MDSpokane, WA 992021083608616
  6. Michael Kerkering, M.D.Spokane, WA 992021881602910
  7. Thomas Laselle, MDSpokane, WA 992021932191343
  8. Charles Laudenbach, MDSpokane, WA 992021255324638

Common questions

What is Jenna Alise Williamson, MD's NPI number?

Jenna Alise Williamson, MD's National Provider Identifier (NPI) is 1891315149, issued on Apr 16, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Jenna Alise Williamson, MD located?

The NPPES record lists a practice address at 624 E Front Ave, Spokane, WA, 99202. Phone: (509) 626-9900. Providers update this record themselves, so call before visiting.

How can I verify Jenna Alise Williamson, MD's license?

NPPES lists Washington license number MD61423056, 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 Jenna Alise Williamson, MD prescribe under Medicare Part D?

In 2024, Jenna Alise Williamson, MD had 270 Medicare Part D claims for 117 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.