NPPES file of Aug 9, 2026

Gerard J. Mahoney, D.O.

Family Medicine Physician · Frankfort, MI

Gerard J. Mahoney, D.O. is a family medicine physician with a practice address in Frankfort, Michigan, and NPI 1659385219, issued on Jul 28, 2006. Check the license (Michigan 5101012168, 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
1659385219
Name
Gerard J. Mahoney
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
5101012168 MI
Self-reported in NPPES; status is on the state search
Practice location
826 Forest Ave, Frankfort, MI 49635
Phone
(231) 352-5285
Enumerated
Jul 28, 2006
Record last updated
Oct 11, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(231) 352-6384
Medicare enrollment
Enrolled (PECOS I20040220000080); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Osteopathic Medicine, 1992
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 826 Forest Ave

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

  1. Michaela Coffia, NPFamily Nurse Practitioner1003276197
  2. Kimberly VandahmPhysician Assistant1245609833

Verify Gerard J. Mahoney 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 5101012168
    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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3.0 times the Medicare Part D claims of the average family medicine physician in 2024

10,540 Medicare Part D claims for 732 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 607 claims were for opioids.

  1. Gerard Mahoney10,540
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium610 claims
  2. Atorvastatin Calcium574 claims
  3. Lisinopril533 claims
  4. Losartan Potassium330 claims
  5. Amlodipine Besylate312 claims
  6. Hydrocodone-Acetaminophen294 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): 85.6 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 score92.7
  2. Costout of 100 · 30%57.2
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Industry payments in 2024: $574.86

30 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gerard Mahoney$574.86
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Crystal Lake Clinic PCInterlochen, MI
  2. Great Lakes Therapy Housecalls PCTraverse City, MI

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

5 family medicine physician records list a practice address in Frankfort

They are 5 of the 59 NPPES records with a practice address in Frankfort, and 6,013 family medicine physician records in Michigan.

Other family medicine physician records in Michigan

  1. Asma AbbasHamtramck, MI1982946463
  2. Saadia Abbas, MDChesterfield, MI1619136868
  3. Faezeh AbbasiMonroe, MI1144065921
  4. Layla Abbasi, MDWayne, MI1346177607
  5. Marisa Abbo, DORochester Hills, MI1184605388
  6. Cathleen Abbott, M.D.East Lansing, MI1275630501
  7. Leah Abbott, MDGwinn, MI1760987341
  8. Nina Abboud, DORochester Hills, MI1639750557
  9. Ryan Abboud, DOBingham Farms, MI1104353077
  10. Christina Abd, MDSterling Heights, MI1770371965

Common questions

What is Gerard J. Mahoney, D.O.'s NPI number?

Gerard J. Mahoney, D.O.'s National Provider Identifier (NPI) is 1659385219, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gerard J. Mahoney, D.O. located?

The NPPES record lists a practice address at 826 Forest Ave, Frankfort, MI, 49635. Phone: (231) 352-5285. Providers update this record themselves, so call before visiting.

How can I verify Gerard J. Mahoney, D.O.'s license?

NPPES lists Michigan license number 5101012168, 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 Gerard J. Mahoney, D.O. prescribe under Medicare Part D?

In 2024, Gerard J. Mahoney, D.O. had 10,540 Medicare Part D claims for 732 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Gerard J. Mahoney, D.O.'s MIPS final score?

The 2023 MIPS final score is 85.6 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.