NPPES file of Aug 9, 2026

Michael Walker, N.P.

Family Nurse Practitioner · Roseville, CA

Michael Walker, N.P. is a family nurse practitioner with a practice address in Roseville, California, and NPI 1134151715, issued on Jul 6, 2006. Check the license (California 448095, as entered in NPPES) with the California 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
1134151715
Name
Michael Walker
Credential
N.P.
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
448095 CA
Self-reported in NPPES; status is on the state search
Practice location
4004 Foothill Blvd, Roseville, CA 95747
Phone
(916) 453-5140
Enumerated
Jul 6, 2006
Record last updated
Jul 10, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20081007000591); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
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Also registered at 4004 Foothill Blvd

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

  1. Nancy Holtz, N.P.Nurse Practitioner1043365851

Verify Michael Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 448095
    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 California 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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80% fewer Medicare Part D claims than the average family nurse practitioner in 2024

260 Medicare Part D claims for 192 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Michael Walker260
  2. Specialty average1,305

Most prescribed

  1. Paxlovid37 claims
  2. Cephalexin32 claims
  3. Amoxicillin-Clavulanate Potass21 claims
  4. Amoxicillin19 claims
  5. Albuterol Sulfate Hfa13 claims
  6. Prednisone13 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 one group practice

  1. Sutter Valley Medical FoundationWest Sacramento, CA

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

Michael Walker among 16,966 family nurse practitioner records in California

Michael Walker, N.P. is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 93% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated1997 · median 2019 among the 6,793 with a school on file
  • Record last updated2015 · 42% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

102 family nurse practitioner records list a practice address in Roseville

They are 102 of the 5,340 NPPES records with a practice address in Roseville, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Andrea AlexanRoseville, CA 957471669157798
  2. Raman BadeshaRoseville, CA 957471316715741
  3. Erwin Criseno, NP-CRoseville, CA 957471245937564
  4. Laura Hromanik, FNPRoseville, CA 957471356781074
  5. Manpreet KaurRoseville, CA 957471700608304
  6. Dianne Camille Mallari-Requillo, NPRoseville, CA 957471306793047
  7. Donna Cathleen Martinez, NPRoseville, CA 957471154270494
  8. Mehak Singh, NPRoseville, CA 957471851272306

Common questions

What is Michael Walker, N.P.'s NPI number?

Michael Walker, N.P.'s National Provider Identifier (NPI) is 1134151715, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Walker, N.P. located?

The NPPES record lists a practice address at 4004 Foothill Blvd, Roseville, CA, 95747. Phone: (916) 453-5140. Providers update this record themselves, so call before visiting.

How can I verify Michael Walker, N.P.'s license?

NPPES lists California license number 448095, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Michael Walker, N.P. prescribe under Medicare Part D?

In 2024, Michael Walker, N.P. had 260 Medicare Part D claims for 192 beneficiaries; 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.

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.