NPPES file of Aug 9, 2026

Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP

Psychiatric/Mental Health Nurse Practitioner · Owosso, MI

Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Owosso, Michigan, and NPI 1831193358, issued on Jun 13, 2005. Check the license (Michigan 4704152236, 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
1831193358
Name
Gerri Lynn Hagadon-Szakal
Credential
MSN, CNP, DNP, PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
4704152236 MI
Self-reported in NPPES; status is on the state search
Practice location
721 N Shiawassee St Ste 201, Owosso, MI 48867
Phone
(989) 725-8124
Enumerated
Jun 13, 2005
Record last updated
Jul 16, 2026
Fax
(989) 723-1205
Medicaid ID
1831193358 MI
Medicare enrollment
Enrolled (PECOS I20040916000819); 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 721 N Shiawassee St Ste 201

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

  1. Jodie Danek, LMSWSocial Worker1578922324
  2. Kenneth Walworth, PA-CPhysician Assistant1881096196

Verify Gerri Lynn Hagadon-Szakal 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 4704152236
    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

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75% more Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

1,586 Medicare Part D claims for 91 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Gerri Hagadon-Szakal1,586
  2. Specialty average906

Most prescribed

  1. Quetiapine Fumarate105 claims
  2. Alprazolam85 claims
  3. Lamotrigine82 claims
  4. Clonazepam77 claims
  5. Duloxetine Hcl65 claims
  6. Lurasidone Hcl65 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. Downriver Mental Health Clinic PCLansing, MI

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

Gerri Lynn Hagadon-Szakal among 931 psychiatric/mental health nurse practitioner records in Michigan

Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, over 99% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1999 · median 2022 among the 570 with a school on file
  • Record last updated2026 · 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.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Joyce Cross, PMHNP-BCOwosso, MI 488671912855479
  2. Matthew Ghastin, DNP, PMHNP-BCOwosso, MI 488671194592972
  3. Jenna Rennells, PMHNP-BC, FNP-BCOwosso, MI 488671740661503
  4. Krista Bedells, PMHNPOkemos, MI 488641700225182
  5. Karyn Butler, FPMHNP-BCOkemos, MI 488641043763741
  6. Morgan GeorgeOkemos, MI 488641508625211
  7. Christine Lovejoy, PMHNPOkemos, MI 488641104644699
  8. Susan Michalowski, NPOkemos, MI 488641588764260

Common questions

What is Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP's NPI number?

Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP's National Provider Identifier (NPI) is 1831193358, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP located?

The NPPES record lists a practice address at 721 N Shiawassee St Ste 201, Owosso, MI, 48867. Phone: (989) 725-8124. Providers update this record themselves, so call before visiting.

How can I verify Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP's license?

NPPES lists Michigan license number 4704152236, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP prescribe under Medicare Part D?

In 2024, Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP had 1,586 Medicare Part D claims for 91 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.