NPPES file of Aug 9, 2026

Mathew Kummerfeldt, PA-C

Physician Assistant · Shelton, WA

Mathew Kummerfeldt, PA-C is a physician assistant with a practice address in Shelton, Washington, and NPI 1285818815, issued on Dec 18, 2007. Check the license with the Washington board that licenses this profession; 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
1285818815
Name
Mathew Kummerfeldt
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
Practice location
1701 N 13TH St, Shelton, WA 98584
Phone
(360) 426-2653
Enumerated
Dec 18, 2007
Record last updated
Feb 21, 2024
Fax
(888) 985-0681
Medicaid ID
8502049 WA
Medicare enrollment
Enrolled (PECOS I20080130000450); 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 1701 N 13TH St

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

  1. Jenni Aaseby, O.D.Optometrist1720133374
  2. Katie Aldrich, PMHNPPsychiatric/Mental Health Nurse Practitioner1003450800
  3. David Anderson, M.D.Internal Medicine Physician1780909556
  4. Danielle Blood, MDObstetrics & Gynecology Physician1629502737
  5. Jess Calohan, DNP, PMHNP-BC, FAANPsychiatric/Mental Health Nurse Practitioner1992813679
  6. Brianna Campbell, PA-CPhysician Assistant1629848916

Verify Mathew Kummerfeldt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck 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
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80% more Medicare Part D claims than the average physician assistant in 2024

1,492 Medicare Part D claims for 216 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Mathew Kummerfeldt1,492
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium119 claims
  2. Lisinopril79 claims
  3. Amlodipine Besylate50 claims
  4. Levothyroxine Sodium50 claims
  5. Gabapentin45 claims
  6. Losartan Potassium39 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 one group practice

  1. Public Hospital District NO 1 OF Mason CountyShelton, WA

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

Mathew Kummerfeldt among 3,718 physician assistant records in Washington

Mathew Kummerfeldt, PA-C is one of 3,718 physician assistant records with a practice address in Washington. 76% 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 20% of them.

  • NPI issued2007 · 20% of these records are older, 73% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2007 · median 2017 among the 2,460 with a school on file
  • Record last updated2024 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 physician assistant records list a practice address in Shelton

They are 13 of the 644 NPPES records with a practice address in Shelton, and 3,718 physician assistant records in Washington.

The 8 physician assistant records with the nearest ZIP codes

  1. Nissan Armas, PA-CShelton, WA 985841083223291
  2. Lucinda Boudreau, PA-CShelton, WA 985841598074627
  3. Brianna Campbell, PA-CShelton, WA 985841629848916
  4. Kc Graham, PA-CShelton, WA 985841467857532
  5. Carley Jacobs, PA-CShelton, WA 985841093993560
  6. John Janisko, PA-CShelton, WA 985841669243838
  7. Rayleen Kirkland, PACShelton, WA 985841437825692
  8. Alexander McKean, PA-CShelton, WA 985841134762792

Common questions

What is Mathew Kummerfeldt, PA-C's NPI number?

Mathew Kummerfeldt, PA-C's National Provider Identifier (NPI) is 1285818815, issued on Dec 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mathew Kummerfeldt, PA-C located?

The NPPES record lists a practice address at 1701 N 13TH St, Shelton, WA, 98584. Phone: (360) 426-2653. Providers update this record themselves, so call before visiting.

How can I verify Mathew Kummerfeldt, PA-C's license?

Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Mathew Kummerfeldt, PA-C prescribe under Medicare Part D?

In 2024, Mathew Kummerfeldt, PA-C had 1,492 Medicare Part D claims for 216 beneficiaries; the average among physician assistant prescribers was 830. 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.