NPPES file of Aug 9, 2026

Marissa Dawn Walker, FNP-C

Family Nurse Practitioner · Novi, MI

Marissa Dawn Walker, FNP-C is a family nurse practitioner with a practice address in Novi, Michigan, and NPI 1487261392, issued on Sep 24, 2020. Check the license (Michigan 4704304415, as entered in NPPES) with the Michigan 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
1487261392
Name
Marissa Dawn Walker
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
4704304415 MI
Self-reported in NPPES; status is on the state search
Practice location
41850 W 11 Mile RD Ste 202, Novi, MI 48375
Phone
(248) 860-4634
Enumerated
Sep 24, 2020
Record last updated
Feb 6, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 5,356 in Michigan → Look up another NPI →

Also registered at 41850 W 11 Mile RD Ste 202

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

  1. Ashley Edmonds, NPNurse Practitioner1003583824
  2. Amy Komperda, NPNurse Practitioner1720172000
  3. Jessica Martinelli, AGACNP-BCNurse Practitioner1679154041

Verify Marissa Dawn Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 4704304415    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 Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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94% fewer Medicare Part D claims than the average family nurse practitioner in 2024

74 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Marissa Walker74
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium15 claims
  2. Mirtazapine12 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.

Marissa Dawn Walker among 5,356 family nurse practitioner records in Michigan

Marissa Dawn Walker, FNP-C is one of 5,356 family nurse practitioner records with a practice address in Michigan. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 55% of them.

  • NPI issued2020 · 55% of these records are older, 38% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

73 family nurse practitioner records list a practice address in Novi

They are 73 of the 7,641 NPPES records with a practice address in Novi, and 5,356 family nurse practitioner records in Michigan.

All 5,356 in Michigan → Every provider in Novi → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Hannah Boike, F.N.P.Novi, MI 483751639601677
  2. Danny Diaz, PMHNP-BCNovi, MI 483751730653973
  3. Lauren DunnNovi, MI 483751265915748
  4. Guiselly Erazo-RomeroNovi, MI 483751528551223
  5. Lisa Finley, CNPNovi, MI 483751063456739
  6. Jill Janavikas, FNP-BCNovi, MI 483751124447933
  7. Brandi Jones, NURSE PRACTITIONERNovi, MI 483751356866842
  8. Darasowan KieckerNovi, MI 483751457821597

Common questions

What is Marissa Dawn Walker, FNP-C's NPI number?

Marissa Dawn Walker, FNP-C's National Provider Identifier (NPI) is 1487261392, issued on Sep 24, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Dawn Walker, FNP-C located?

The NPPES record lists a practice address at 41850 W 11 Mile RD Ste 202, Novi, MI, 48375. Phone: (248) 860-4634. Providers update this record themselves, so call before visiting.

How can I verify Marissa Dawn Walker, FNP-C's license?

NPPES lists Michigan license number 4704304415, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Marissa Dawn Walker, FNP-C prescribe under Medicare Part D?

In 2024, Marissa Dawn Walker, FNP-C had 74 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.