Margaret Harrison, PA-C
NPI 1740503994 · Medical Physician Assistant · Silverdale, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Harrison, PA-C is a Medical Physician Assistant provider in Silverdale, WA (NPI 1740503994).
Provider details
- NPI number
- 1740503994
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA60565196 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
45 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 19 | $109 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 13 | $77 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 13 | $152 |
Typical Medicare-allowed amounts for these services range $77–$152 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 23 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 18 | 18 |
| Prednisone | 15 | 15 |
| Cephalexin | 14 | 14 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 11 | 11 |
| Mupirocin | 11 | 11 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 11 |
Practice location
Mailing address
Additional practice locations (1)
- 1608 S J St Fl 3Tacoma, WA 98405-4930Phone: (253) 274-7503Fax: (253) 351-5399
Registry dates
- Enumerated
- 2010-03-02
- Last updated
- 2022-10-25
- Certified
- 2022-10-25
Frequently asked questions
- What is Margaret Harrison's NPI number?
- Margaret Harrison's National Provider Identifier (NPI) is 1740503994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Harrison's specialty?
- Margaret Harrison is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Harrison located?
- Margaret Harrison's practice location on file with NPPES is 10452 Silverdale Way Nw, Silverdale, WA 98383-9411.
- What is Margaret Harrison's phone number?
- The practice phone number listed in the NPPES registry for Margaret Harrison is (360) 307-7300.
- Does Margaret Harrison accept Medicare?
- Margaret Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Harrison's NPI active?
- Yes — Margaret Harrison's NPI (1740503994) is active in the NPPES registry as of the last update on 2022-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.