NPPES file of Aug 9, 2026

Mark McMullan, OTR

Occupational Therapist · Olympia, WA

Mark McMullan, OTR is an occupational therapist with a practice address in Olympia, Washington, and NPI 1588329973, issued on Nov 1, 2021. 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588329973
Name
Mark McMullan
Credential
OTR
Primary taxonomy
Occupational Therapist 225X00000X
License numbers
OT-3029 NV
22059 FL
Self-reported in NPPES; status is on the state search
Practice location
700 Lilly RD NE, Olympia, WA 98506
Phone
(360) 923-7000
Enumerated
Nov 1, 2021
Record last updated
Aug 28, 2023
Fax
(360) 923-7089
Medicare enrollment
Enrolled (PECOS I20230703000261); 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 700 Lilly RD NE

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

  1. Sharon Abegg, M.D.Psychiatry Physician1437291143
  2. Mary Aesoph, AUDAudiologist1710233978
  3. Krystle Agtarap, PASurgical Physician Assistant1972907590
  4. Elizabeth Alberti, P.A.Physician Assistant1215087937
  5. Stephen Albrecht, M.D.Family Medicine Physician1538286026
  6. Amber An, DOGeriatric Medicine (Internal Medicine) Physician1538335443

Verify Mark McMullan 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
Find the Washington license search

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Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF WashingtonOlympia, WA

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

Mark McMullan among 3,083 occupational therapist records in Washington

Mark McMullan, OTR is one of 3,083 occupational therapist records with a practice address in Washington. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 76% of them.

  • NPI issued2021 · 76% of these records are older, 20% newer
  • In a Medicare fileYes · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2021 · median 2017 among the 320 with a school on file
  • Record last updated2023 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

66 occupational therapist records list a practice address in Olympia

They are 66 of the 5,034 NPPES records with a practice address in Olympia, and 3,083 occupational therapist records in Washington.

The 8 occupational therapist records with the nearest ZIP codes

  1. Pamela Boyles, OTR/LOlympia, WA 985061437335775
  2. Margaret Brown, OTROlympia, WA 985061497303275
  3. Susan Burgess, OCCUPATIONAL THERAPIOlympia, WA 985061386991990
  4. Sheli Carlson, OTR/LOlympia, WA 985061245589464
  5. Sarah Clue, OTR/LOlympia, WA 985061770061285
  6. Sarah Martin, OTR/LOlympia, WA 985061285065201
  7. Laura Nimon, OTR/L, CLT-LANAOlympia, WA 985061720343684
  8. Vickie Parker, OTROlympia, WA 985061730432840

Common questions

What is Mark McMullan, OTR's NPI number?

Mark McMullan, OTR's National Provider Identifier (NPI) is 1588329973, issued on Nov 1, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Mark McMullan, OTR located?

The NPPES record lists a practice address at 700 Lilly RD NE, Olympia, WA, 98506. Phone: (360) 923-7000. Providers update this record themselves, so call before visiting.

How can I verify Mark McMullan, OTR's license?

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.