Marshall Mahon, MD
NPI 1518581800 · Family Medicine Physician · Syracuse, NY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Mahon, MD is a Family Medicine Physician provider in Syracuse, NY (NPI 1518581800).
Provider details
- NPI number
- 1518581800
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 320847 (NY)
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
6 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
525 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 253 | $74 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 82 | $162 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 60 | $108 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 51 | $123 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 51 | $112 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 53 | — |
| Spironolactone | 38 | — |
| Telmisartan | 33 | — |
| Atorvastatin Calcium | 20 | — |
| Apixabanbrand: Eliquis | 20 | — |
| Cefuroxime Axetilbrand: Cefuroxime | 13 | 13 |
| Levothyroxine Sodium | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$500 across 16 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
- 2020-06-02
- Last updated
- 2024-01-05
- Certified
- 2024-01-05
Frequently asked questions
- What is Marshall Mahon's NPI number?
- Marshall Mahon's National Provider Identifier (NPI) is 1518581800, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Mahon's specialty?
- Marshall Mahon is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marshall Mahon located?
- Marshall Mahon's practice location on file with NPPES is 301 Prospect Ave, Syracuse, NY 13203-1807.
- What is Marshall Mahon's phone number?
- The practice phone number listed in the NPPES registry for Marshall Mahon is (315) 448-5536.
- Does Marshall Mahon accept Medicare?
- Marshall Mahon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Mahon's NPI active?
- Yes — Marshall Mahon's NPI (1518581800) is active in the NPPES registry as of the last update on 2024-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.