Maxwell M. Zamzow, ARNP
Nurse Practitioner · Marysville, WA
Maxwell M. Zamzow, ARNP is a nurse practitioner with a practice address in Marysville, Washington, and NPI 1326618281, issued on Jul 1, 2021. Check the license (Washington AP61183580, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maxwell M. Zamzow
- Credential
- ARNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- AP61183580 WA
RN60426586 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2901 174TH St NE, Marysville, WA 98271
- Phone
- (360) 454-1900
- Enumerated
- Jul 1, 2021
- Record last updated
- Jun 8, 2026
- Fax
- (360) 454-1991
- Medicare enrollment
- Enrolled (PECOS I20210729001972); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 2,308 in Washington → Look up another NPI →
Also registered at 2901 174TH St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Barlow, M.D.Pulmonary Disease Physician1336559871
Verify Maxwell M. Zamzow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP61183580Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average nurse practitioner in 2024
1,272 Medicare Part D claims for 493 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 65 claims were for opioids.
Most prescribed
- Levothyroxine Sodium59 claims
- Atorvastatin Calcium53 claims
- Lisinopril46 claims
- Losartan Potassium43 claims
- Metoprolol Succinate35 claims
- Omeprazole35 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 2 group practices
- Optum Care Washington PLLCMarysville, WA
- The Polyclinic PLLCSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maxwell M. Zamzow among 2,308 nurse practitioner records in Washington
Maxwell M. Zamzow, ARNP is one of 2,308 nurse practitioner records with a practice address in Washington. 72% 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 75% of them.
- NPI issued2021 · 75% of these records are older, 19% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2021 · median 2018 among the 1,301 with a school on file
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 nurse practitioner records list a practice address in Marysville
They are 12 of the 874 NPPES records with a practice address in Marysville, and 2,308 nurse practitioner records in Washington.
All 2,308 in Washington → Every provider in Marysville → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Justin Gill, ARNPMarysville, WA 982711174903603
- Alessa Lopez-Castor, FNP-CTulalip, WA 982711285661744
- Jacqueline WahlMarysville, WA 982711437774338
- Jessica Woodard, NP-CMarysville, WA 982711952974024
- Joyce Burt, ARNPMarysville, WA 982701336393222
- Cindy Catlin, ARNPMonroe, WA 982721881140796
- Carole Clark, ARNPMarysville, WA 982701710056882
- Kelly Dale, ARNPMarysville, WA 982701770653784
Common questions
What is Maxwell M. Zamzow, ARNP's NPI number?
Maxwell M. Zamzow, ARNP's National Provider Identifier (NPI) is 1326618281, issued on Jul 1, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Maxwell M. Zamzow, ARNP located?
The NPPES record lists a practice address at 2901 174TH St NE, Marysville, WA, 98271. Phone: (360) 454-1900. Providers update this record themselves, so call before visiting.
How can I verify Maxwell M. Zamzow, ARNP's license?
NPPES lists Washington license number AP61183580, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Maxwell M. Zamzow, ARNP prescribe under Medicare Part D?
In 2024, Maxwell M. Zamzow, ARNP had 1,272 Medicare Part D claims for 493 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.