Margaret Zimmerman, ARNP
NPI 1902834781 · Adult Health Nurse Practitioner · Olympia, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Zimmerman, ARNP is a Adult Health Nurse Practitioner provider in Olympia, WA (NPI 1902834781).
Provider details
- NPI number
- 1902834781
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP30001995 (WA)
Specialties & taxonomies
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
678 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 173 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 161 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 79 | $109 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 77 | $46 |
| Biopsy of Related Skin Growth, First Growth11102 | 73 | $80 |
| Destruction of Skin Growth, 1-14 Growths |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 43 | 37 |
| Ketoconazole | 38 | 26 |
| Doxycycline Hyclate | 15 | — |
| Fluorouracil | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-29
- Last updated
- 2024-08-08
- Certified
- 2024-08-08
Frequently asked questions
- What is Margaret Zimmerman's NPI number?
- Margaret Zimmerman's National Provider Identifier (NPI) is 1902834781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Zimmerman's specialty?
- Margaret Zimmerman is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Zimmerman located?
- Margaret Zimmerman's practice location on file with NPPES is 2411 Pacific Ave Se, Olympia, WA 98501-2048.
- What is Margaret Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Margaret Zimmerman is (360) 339-8225.
- Does Margaret Zimmerman accept Medicare?
- Margaret Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Zimmerman's NPI active?
- Yes — Margaret Zimmerman's NPI (1902834781) is active in the NPPES registry as of the last update on 2024-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.