NPPES file of Aug 9, 2026

Corey William Hartwell, LLMSW

Clinical Social Worker · Gladwin, MI

Corey William Hartwell, LLMSW is a clinical social worker with a practice address in Gladwin, Michigan, and NPI 1235789223, issued on Sep 12, 2019. Check the license (Michigan 6801105588, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235789223
Name
Corey William Hartwell
Credential
LLMSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
6801105588 MI
Self-reported in NPPES; status is on the state search
Practice location
655 E Cedar Ave, Gladwin, MI 48624
Phone
(989) 426-9295
Enumerated
Sep 12, 2019
Record last updated
Sep 12, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20230621001949); 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.
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Also registered at 655 E Cedar Ave

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

  1. Nicholas BaileyCase Manager/Care Coordinator1427862366
  2. Sarah Bier, LLMSWClinical Social Worker1639455645
  3. Jessica BriggsClinical Social Worker1801227459
  4. Lanelle Brown, ADN, RN-BCRegistered Nurse1649616608
  5. Savannah Celestino, RNPsychiatric/Mental Health Registered Nurse1356058572
  6. Kenneth CrawfordSocial Worker1750702262

Verify Corey William Hartwell 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 6801105588
    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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Bills Medicare through one group practice

  1. Community Mental Health For Central MichiganGladwin, MI

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

Corey William Hartwell among 17,644 clinical social worker records in Michigan

Corey William Hartwell, LLMSW is one of 17,644 clinical social worker records with a practice address in Michigan. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 62% of them.

  • NPI issued2019 · 62% of these records are older, 32% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 20% of these records are
  • Graduated2019 · median 2012 among the 3,587 with a school on file
  • Record last updated2019 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 clinical social worker records list a practice address in Gladwin

They are 15 of the 262 NPPES records with a practice address in Gladwin, and 17,644 clinical social worker records in Michigan.

The 8 clinical social worker records with the nearest ZIP codes

  1. Sarah Bier, LLMSWGladwin, MI 486241639455645
  2. Kelsey BoyceGladwin, MI 486241144600479
  3. Jessica BriggsGladwin, MI 486241801227459
  4. Janice Crowley, LMSWGladwin, MI 486241598845190
  5. Alyssa Dantzer, LLMSWGladwin, MI 486241962965475
  6. Renee Dyer, LLMSWGladwin, MI 486241043629645
  7. Jennifer Fischer, BSW, DP-CGladwin, MI 486241790409845
  8. Kelly Kubiak, LMSWGladwin, MI 486241073527685

Common questions

What is Corey William Hartwell, LLMSW's NPI number?

Corey William Hartwell, LLMSW's National Provider Identifier (NPI) is 1235789223, issued on Sep 12, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Corey William Hartwell, LLMSW located?

The NPPES record lists a practice address at 655 E Cedar Ave, Gladwin, MI, 48624. Phone: (989) 426-9295. Providers update this record themselves, so call before visiting.

How can I verify Corey William Hartwell, LLMSW's license?

NPPES lists Michigan license number 6801105588, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity 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.