NPPES file of Aug 9, 2026

Jacob Matthew Ernst, D.O.

Emergency Medicine Physician · Joint Base Lewis McChord, WA

Jacob Matthew Ernst, D.O. is an emergency medicine physician with a practice address in Joint Base Lewis McChord, Washington, and NPI 1013377084, issued on Mar 3, 2016. 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
1013377084
Name
Jacob Matthew Ernst
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
02005164A IN
Self-reported in NPPES; status is on the state search
Practice location
9040 Jackson Ave, Joint Base Lewis McChord, WA 98431
Phone
(253) 968-0369
Enumerated
Mar 3, 2016
Record last updated
Jul 9, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20240719002473); accepts Medicare assignment
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 9040 Jackson Ave

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

  1. Sarah Abel, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1386053379
  2. Kyle Bartol, DOCardiovascular Disease Physician1669854295
  3. Kelly Beeken, MDObstetrics & Gynecology Physician1700034030
  4. Daniel Bess, M.D.Diagnostic Radiology Physician1497092159
  5. Sonya Calangan, RNCase Management Registered Nurse1245547512
  6. Mekeisha Caulk, FNP-CFamily Nurse Practitioner1871687574

Verify Jacob Matthew Ernst 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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27% more Medicare Part D claims than the average emergency medicine physician in 2024

288 Medicare Part D claims for 171 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 27 claims were for opioids.

  1. Jacob Ernst288
  2. Specialty average226

Most prescribed

  1. Prednisone25 claims
  2. Ondansetron Odt24 claims
  3. Doxycycline Hyclate20 claims
  4. Oxycodone Hcl19 claims
  5. Cefdinir18 claims
  6. Cyclobenzaprine Hcl16 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. Cep America LLCEvansville, IN
  2. Emergency Professionals OF Indiana PCFort Wayne, IN

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

Jacob Matthew Ernst among 1,459 emergency medicine physician records in Washington

Jacob Matthew Ernst, D.O. is one of 1,459 emergency medicine physician records with a practice address in Washington. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 81% of them.

  • NPI issued2016 · 81% of these records are older, 17% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2016 · median 2010 among the 851 with a school on file
  • Record last updated2020 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 emergency medicine physician records list a practice address in Joint Base Lewis McChord

They are 17 of the 408 NPPES records with a practice address in Joint Base Lewis McChord, and 1,459 emergency medicine physician records in Washington.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Simeon Ashworth, DOTacoma, WA 984311861462368
  2. Robert Blankenship, M.D.Tacoma, WA 984311629049523
  3. Diane DevitaTacoma, WA 984311528039757
  4. Patrick Holland, MDTacoma, WA 984311376584631
  5. Maria Hugi, M.D.Tacoma, WA 984311518027887
  6. Christopher Kang, M.D.Tacoma, WA 984311649242231
  7. Roger Manson, M.D.Tacoma, WA 984311457321960
  8. John Short, M.D.Tacoma, WA 984311861432510

Common questions

What is Jacob Matthew Ernst, D.O.'s NPI number?

Jacob Matthew Ernst, D.O.'s National Provider Identifier (NPI) is 1013377084, issued on Mar 3, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Jacob Matthew Ernst, D.O. located?

The NPPES record lists a practice address at 9040 Jackson Ave, Joint Base Lewis McChord, WA, 98431. Phone: (253) 968-0369. Providers update this record themselves, so call before visiting.

How can I verify Jacob Matthew Ernst, D.O.'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 Jacob Matthew Ernst, D.O. prescribe under Medicare Part D?

In 2024, Jacob Matthew Ernst, D.O. had 288 Medicare Part D claims for 171 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.