NPPES file of Aug 9, 2026

Margaret C. Harrison, PA-C

Medical Physician Assistant · Silverdale, WA

Margaret C. Harrison, PA-C is a medical physician assistant with a practice address in Silverdale, Washington, and NPI 1740503994, issued on Mar 2, 2010. Check the license (Washington PA60565196, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740503994
Name
Margaret C. Harrison
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License numbers
PA60565196 WA
0110003254 VA
Self-reported in NPPES; status is on the state search
Practice location
10452 Silverdale Way NW, Silverdale, WA 98383
Phone
(360) 307-7300
Enumerated
Mar 2, 2010
Record last updated
Oct 25, 2022
Fax
(360) 307-7304
Medicaid ID
2049029 WA
Medicare enrollment
Enrolled (PECOS I20151105000790); 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 10452 Silverdale Way NW

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

  1. Kavita Bansil, ODOptometrist1790836955
  2. Peter Barkett, M.D.Internal Medicine Physician1891086252
  3. Carrielyn Bays, P.A.Physician Assistant1699828376
  4. Joe Bennett, MDEmergency Medicine Physician1053769893
  5. Anne Blankenheim, PA-CMedical Physician Assistant1699087866
  6. Janet Boltwood, LICSWClinical Social Worker1306238431

Verify Margaret C. Harrison 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 PA60565196
    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

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81% fewer Medicare Part D claims than the average medical physician assistant in 2024

217 Medicare Part D claims for 150 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. Margaret Harrison217
  2. Specialty average1,148

Most prescribed

  1. Cefdinir23 claims
  2. Amoxicillin-Clavulanate Potass18 claims
  3. Prednisone15 claims
  4. Cephalexin14 claims
  5. Albuterol Sulfate Hfa11 claims
  6. Mupirocin11 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. Kaiser Foundation Health Plan OF WashingtonSilverdale, WA

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

Margaret C. Harrison among 1,068 medical physician assistant records in Washington

Margaret C. Harrison, PA-C is one of 1,068 medical physician assistant records with a practice address in Washington. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 54% of them.

  • NPI issued2010 · 54% of these records are older, 42% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated2009 · median 2013 among the 581 with a school on file
  • Record last updated2022 · 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 363AM0700X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 medical physician assistant records list a practice address in Silverdale

They are 13 of the 1,305 NPPES records with a practice address in Silverdale, and 1,068 medical physician assistant records in Washington.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Anne Blankenheim, PA-CSilverdale, WA 983831699087866
  2. Laura Cobb, PA-CSilverdale, WA 983831407258965
  3. Paula Davison, P.ASilverdale, WA 983831790898260
  4. John Enyeart, P.A.Silverdale, WA 983831457418600
  5. Greg Mennie, PA-CSilverdale, WA 983831386736528
  6. Robert Morash, PA-CSilverdale, WA 983831073572376
  7. Benjamin Norton, PACSilverdale, WA 983831184140840
  8. Kathryn OsborneSilverdale, WA 983831124420674

Common questions

What is Margaret C. Harrison, PA-C's NPI number?

Margaret C. Harrison, PA-C's National Provider Identifier (NPI) is 1740503994, issued on Mar 2, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Margaret C. Harrison, PA-C located?

The NPPES record lists a practice address at 10452 Silverdale Way NW, Silverdale, WA, 98383. Phone: (360) 307-7300. Providers update this record themselves, so call before visiting.

How can I verify Margaret C. Harrison, PA-C's license?

NPPES lists Washington license number PA60565196, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Margaret C. Harrison, PA-C prescribe under Medicare Part D?

In 2024, Margaret C. Harrison, PA-C had 217 Medicare Part D claims for 150 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.