Mary Jane Holbrook, NP
Psychiatric/Mental Health Nurse Practitioner · Saginaw, MI
Mary Jane Holbrook, NP is a psychiatric/mental health nurse practitioner with a practice address in Saginaw, Michigan, and NPI 1508205451, issued on Jun 24, 2013. Check the license (Michigan 4704275288, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Jane Holbrook
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 4704275288 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Houghton Ave, Saginaw, MI 48602
- Phone
- (989) 583-6800
- Enumerated
- Jun 24, 2013
- Record last updated
- Apr 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (989) 583-6915
- Medicare enrollment
- Enrolled (PECOS I20130927000474); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 931 in Michigan → Look up another NPI →
Also registered at 1000 Houghton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Jane Holbrook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704275288Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.8 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024
7,101 Medicare Part D claims for 236 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Trazodone Hcl355 claims
- Benztropine Mesylate317 claims
- Sertraline Hcl264 claims
- Divalproex Sodium Er233 claims
- Hydroxyzine Hcl232 claims
- Fluoxetine Hcl230 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
- Bay-Arenac Behavioral HealthBay City, MI
- Hospital Psychiarty PLLCSaginaw, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Jane Holbrook among 931 psychiatric/mental health nurse practitioner records in Michigan
Mary Jane Holbrook, NP is one of 931 psychiatric/mental health nurse practitioner records with a practice address in Michigan. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 17% of them.
- NPI issued2013 · 17% of these records are older, 79% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2013 · median 2022 among the 570 with a school on file
- Record last updated2018 · 19% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in Michigan
There are 931 psychiatric/mental health nurse practitioner records in Michigan.
All 931 in Michigan → Every provider in Saginaw → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Erin Hanson, NPSaginaw, MI 486021689793663
- Kay McLaren, CNPSaginaw, MI 486021952438913
- Mary Tinklepaugh, ANP-BC, PHMNP-BCSaginaw, MI 486021245654441
- Stacy Brown, PMHNPSaginaw, MI 486031255046249
- Mary Daly, DNP PMHNP-BC, FNP-BCSaginaw, MI 486031679668313
- Courtney Deuscher, PMHNPSaginaw, MI 486031780364745
- Amber FritzlerSaginaw, MI 486031235770819
- Gladys Kimeli, NPSaginaw, MI 486031356823496
Common questions
What is Mary Jane Holbrook, NP's NPI number?
Mary Jane Holbrook, NP's National Provider Identifier (NPI) is 1508205451, issued on Jun 24, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Mary Jane Holbrook, NP located?
The NPPES record lists a practice address at 1000 Houghton Ave, Saginaw, MI, 48602. Phone: (989) 583-6800. Providers update this record themselves, so call before visiting.
How can I verify Mary Jane Holbrook, NP's license?
NPPES lists Michigan license number 4704275288, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Jane Holbrook, NP prescribe under Medicare Part D?
In 2024, Mary Jane Holbrook, NP had 7,101 Medicare Part D claims for 236 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.