NPPES file of Aug 9, 2026

Melanie Ann Walker, NP-C

Nurse Practitioner · Billings, MT

Melanie Ann Walker, NP-C is a nurse practitioner with a practice address in Billings, Montana, and NPI 1083948889, issued on Sep 25, 2009. Check the license (Montana 32167, as entered in NPPES) with the Montana 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
1083948889
Name
Melanie Ann Walker
Credential
NP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License number
32167 MT
Self-reported in NPPES; status is on the state search
Practice location
2900 12TH Ave North, Billings, MT 59101
Phone
(406) 237-8808
Enumerated
Sep 25, 2009
Record last updated
Nov 10, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(406) 237-8810
Medicaid ID
0750244 MT
Medicare enrollment
Enrolled (PECOS I20140327000941); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 2900 12TH Ave North

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

  1. Martin Willems, R.PH.Pharmacist1639495518

Verify Melanie Ann Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license 32167
    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 Montana 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

1% more Medicare Part D claims than the average nurse practitioner in 2024

1,125 Medicare Part D claims for 62 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 62 claims were for opioids.

  1. Melanie Walker1,125
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium94 claims
  2. Metformin Hcl Er67 claims
  3. Losartan Potassium55 claims
  4. Gabapentin48 claims
  5. Amlodipine Besylate46 claims
  6. Ozempic43 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.

Industry payments in 2024: $80.99

1 payment: food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Melanie Walker$80.99
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. U S Health Dept OF Health And Human ServicesCroe Agency, MT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Melanie Ann Walker among 287 nurse practitioner records in Montana

Melanie Ann Walker, NP-C is one of 287 nurse practitioner records with a practice address in Montana. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 34% of them.

  • NPI issued2009 · 34% of these records are older, 65% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2009 · median 2019 among the 185 with a school on file
  • Record last updated2010 · 43% 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

72 nurse practitioner records list a practice address in Billings

They are 72 of the 4,035 NPPES records with a practice address in Billings, and 287 nurse practitioner records in Montana.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Valerie Caton, APRN(FNP-C)Billings, MT 591011104846658
  2. Lynette Cross, NPBillings, MT 591011295773182
  3. Brenda Gilmore, NPBillings, MT 591011144253386
  4. Lori Hartford, NPBillings, MT 591011194985572
  5. Yvonne Kammerzell, NPBillings, MT 591011942301015
  6. Monica Maher, NPBillings, MT 591011548314107
  7. Sheryl Malinowski, FNPBillings, MT 591011790999878
  8. George Murray, NPBillings, MT 591011154347854

Common questions

What is Melanie Ann Walker, NP-C's NPI number?

Melanie Ann Walker, NP-C's National Provider Identifier (NPI) is 1083948889, issued on Sep 25, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Melanie Ann Walker, NP-C located?

The NPPES record lists a practice address at 2900 12TH Ave North, Billings, MT, 59101. Phone: (406) 237-8808. Providers update this record themselves, so call before visiting.

How can I verify Melanie Ann Walker, NP-C's license?

NPPES lists Montana license number 32167, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.

How much does Melanie Ann Walker, NP-C prescribe under Medicare Part D?

In 2024, Melanie Ann Walker, NP-C had 1,125 Medicare Part D claims for 62 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.