NPPES file of Aug 9, 2026

Mark D. Frewing, DPT

Physical Therapist · Walla Walla, WA

Mark D. Frewing, DPT is a physical therapist with a practice address in Walla Walla, Washington, and NPI 1902970841, issued on Nov 20, 2006. Check the license (Washington PT00010293, as entered in NPPES) 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902970841
Name
Mark D. Frewing
Credential
DPT
Primary taxonomy
Physical Therapist 225100000X
License number
PT00010293 WA
Self-reported in NPPES; status is on the state search
Practice location
55 W Tietan St, Walla Walla, WA 99362
Phone
(509) 525-3720
Enumerated
Nov 20, 2006
Record last updated
Nov 2, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(509) 522-1592
Medicaid IDs
8469959 WA
71265 OR
Medicare enrollment
Enrolled (PECOS I20070112000535); 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 55 W Tietan St

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

  1. Kevin Andrews, MDInternal Medicine Physician1174513873
  2. Shirley Ashley, MDPediatrics Physician1922083195
  3. Eric Ball, M.D.Internal Medicine Physician1275507485
  4. Thomas Ballard, MDDiagnostic Radiology Physician1750360012
  5. Theodore Bergstrom, M.D.Pediatrics Physician1598739716
  6. Barbara Blankenship, M.D.Diagnostic Radiology Physician1356305262

Verify Mark D. Frewing in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license PT00010293
    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
Find 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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Bills Medicare through one group practice

  1. Privia Medical Group Washington PLLCWalla Walla, WA

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

Mark D. Frewing among 7,493 physical therapist records in Washington

Mark D. Frewing, DPT is one of 7,493 physical therapist records with a practice address in Washington. 38% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 80% newer
  • In a Medicare fileYes · 38% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2005 · median 2016 among the 2,929 with a school on file
  • Record last updated2018 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

55 physical therapist records list a practice address in Walla Walla

They are 55 of the 1,276 NPPES records with a practice address in Walla Walla, and 7,493 physical therapist records in Washington.

The 8 physical therapist records with the nearest ZIP codes

  1. George Arias, M.S.P.T.Walla Walla, WA 993621407820103
  2. Dave Barcenas, MSPTWalla Walla, WA 993621063431864
  3. Bradford Brouillette, PTWalla Walla, WA 993621861589350
  4. Michael Clark, PTWalla Walla, WA 993621306849955
  5. Michael Gregg, M.S.P.T.Walla Walla, WA 993621205800901
  6. Rachelle Hartman, P.T.Walla Walla, WA 993621245280494
  7. Connie Morgan, MSPTWalla Walla, WA 993621114192598
  8. Thomas O'Donnell, PT, DPT, OCSWalla Walla, WA 993621134362486

Common questions

What is Mark D. Frewing, DPT's NPI number?

Mark D. Frewing, DPT's National Provider Identifier (NPI) is 1902970841, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark D. Frewing, DPT located?

The NPPES record lists a practice address at 55 W Tietan St, Walla Walla, WA, 99362. Phone: (509) 525-3720. Providers update this record themselves, so call before visiting.

How can I verify Mark D. Frewing, DPT's license?

NPPES lists Washington license number PT00010293, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity 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.