Gerard Mahoney, D.O.
NPI 1659385219 · Family Medicine Physician · Frankfort, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerard Mahoney, D.O. is a Family Medicine Physician provider in Frankfort, MI (NPI 1659385219).
Provider details
- NPI number
- 1659385219
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 5101012168 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,142 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 607 | $114 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 540 | $81 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 278 | $112 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 124 | $161 |
| Hemoglobin A1c Level83036 | 104 | $10 |
| Automated Urinalysis Test81003 | 95 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 142 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 610 | 140 |
| Atorvastatin Calcium | 574 | 150 |
| Lisinopril | 533 | 142 |
| Losartan Potassium | 330 | 94 |
| Amlodipine Besylate | 312 | 89 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 294 | 45 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$575 across 30 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2007-10-11
Frequently asked questions
- What is Gerard Mahoney's NPI number?
- Gerard Mahoney's National Provider Identifier (NPI) is 1659385219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerard Mahoney's specialty?
- Gerard Mahoney is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerard Mahoney located?
- Gerard Mahoney's practice location on file with NPPES is 826 Forest Ave, Frankfort, MI 49635.
- What is Gerard Mahoney's phone number?
- The practice phone number listed in the NPPES registry for Gerard Mahoney is (231) 352-5285.
- Does Gerard Mahoney accept Medicare?
- Gerard Mahoney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerard Mahoney's NPI active?
- Yes — Gerard Mahoney's NPI (1659385219) is active in the NPPES registry as of the last update on 2007-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.