Maxwell Zamzow, ARNP
NPI 1326618281 · Nurse Practitioner · Marysville, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maxwell Zamzow, ARNP is a Nurse Practitioner provider in Marysville, WA (NPI 1326618281).
Provider details
- NPI number
- 1326618281
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- AP61183580 (WA)
Specialties & taxonomies
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
4 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
314 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 64 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 59 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 58 | $107 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 31 | $10 |
| Hemoglobin A1c Level83036 | 27 | $10 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 21 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 59 | 25 |
| Atorvastatin Calcium | 53 | 30 |
| Lisinopril | 46 | 22 |
| Losartan Potassium | 43 | 21 |
| Omeprazole | 35 | 25 |
| Metoprolol Succinate | 35 | 22 |
| Meloxicam | 34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-07-01
- Last updated
- 2026-06-08
- Certified
- 2026-06-08
Frequently asked questions
- What is Maxwell Zamzow's NPI number?
- Maxwell Zamzow's National Provider Identifier (NPI) is 1326618281, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maxwell Zamzow's specialty?
- Maxwell Zamzow is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maxwell Zamzow located?
- Maxwell Zamzow's practice location on file with NPPES is 2901 174th St Ne, Marysville, WA 98271-4743.
- What is Maxwell Zamzow's phone number?
- The practice phone number listed in the NPPES registry for Maxwell Zamzow is (360) 454-1900.
- Does Maxwell Zamzow accept Medicare?
- Maxwell Zamzow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maxwell Zamzow's NPI active?
- Yes — Maxwell Zamzow's NPI (1326618281) is active in the NPPES registry as of the last update on 2026-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.