NPPES file of Aug 9, 2026

Thomas R. Hartzell, MD

Obstetrics & Gynecology Physician · Saint Clair Shores, MI

Thomas R. Hartzell, MD is an obstetrics & gynecology physician with a practice address in Saint Clair Shores, Michigan, and NPI 1619966256, issued on Oct 17, 2005. Check the license (Michigan 4301052970, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619966256
Name
Thomas R. Hartzell
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
4301052970 MI
Self-reported in NPPES; status is on the state search
Practice location
21000 E 12 Mile RD, Saint Clair Shores, MI 48081
Phone
(800) 848-0202
Enumerated
Oct 17, 2005
Record last updated
Sep 9, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(586) 226-6949
Medicare enrollment
Enrolled (PECOS I20100226000514); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 1988
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 21000 E 12 Mile RD

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

  1. Robert Brammer, MDOtology & Neurotology Physician1659464782
  2. Kenneth Bush, RPHPharmacist1992002935
  3. Nina Callahan, M.S., CF-SLP, TSSLDSpeech-Language Pathologist1871320127
  4. Sean Cassleman, DOInternal Medicine Physician1720404775
  5. Maria Juliana Codino, MS-CCC, SLPSpeech-Language Pathologist1578037966
  6. Daniel Colaluca, PHARM.D.Pharmacist1881708626

Verify Thomas R. Hartzell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301052970
    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
Open the Michigan license search

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2.4 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024

388 Medicare Part D claims for 129 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Thomas Hartzell388
  2. Specialty average165

Most prescribed

  1. Estradiol91 claims
  2. Alendronate Sodium31 claims
  3. Medroxyprogesterone Acetate28 claims
  4. Nystatin-Triamcinolone24 claims
  5. Clobetasol Propionate17 claims
  6. Metronidazole14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.7
  2. Costout of 100 · 30%65.3
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Henry Ford Semi Medical GroupSaint Clair Shores, MI

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

Thomas R. Hartzell among 1,776 obstetrics & gynecology physician records in Michigan

Thomas R. Hartzell, MD is one of 1,776 obstetrics & gynecology physician records with a practice address in Michigan. 73% 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, 87% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated1988 · median 2007 among the 1,003 with a school on file
  • Record last updated2019 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Michigan

There are 1,776 obstetrics & gynecology physician records in Michigan.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Christopher Bowen, DOSaint Clair Shores, MI 480811104285238
  2. Veena Chari Hedni, MDSt Clair Shores, MI 480811922096700
  3. Jennifer Kuzel, MDSt Clair Shores, MI 480811902895014
  4. Ann McReynolds, MDSt Clair Shores, MI 480811114917077
  5. Manuela O'Campo, MDSt Clair Shores, MI 480811336130723
  6. Joyce Purakal, M.D.Saint Clair Shores, MI 480811346360229
  7. Nathan White, MDSt Clair Shores, MI 480811134106024
  8. Andrea Abessinio, D.O.Saint Clair Shores, MI 480801144237926

Common questions

What is Thomas R. Hartzell, MD's NPI number?

Thomas R. Hartzell, MD's National Provider Identifier (NPI) is 1619966256, issued on Oct 17, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas R. Hartzell, MD located?

The NPPES record lists a practice address at 21000 E 12 Mile RD, Saint Clair Shores, MI, 48081. Phone: (800) 848-0202. Providers update this record themselves, so call before visiting.

How can I verify Thomas R. Hartzell, MD's license?

NPPES lists Michigan license number 4301052970, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas R. Hartzell, MD prescribe under Medicare Part D?

In 2024, Thomas R. Hartzell, MD had 388 Medicare Part D claims for 129 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Thomas R. Hartzell, MD's MIPS final score?

The 2023 MIPS final score is 86.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.