James Mason, MD
NPI 1346277050 · Internal Medicine Physician · Fairport, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Mason, MD is a Internal Medicine Physician provider in Fairport, NY (NPI 1346277050).
Provider details
- NPI number
- 1346277050
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 179303 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
254 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 87 | $93 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 66 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 39 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $66 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 27 | $8 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 122 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 499 | 153 |
| Levothyroxine Sodium | 489 | 128 |
| Lisinopril | 368 | 100 |
| Meloxicam | 307 | 89 |
| Amlodipine Besylate | 285 | 86 |
| Tamsulosin Hcl | 265 | 75 |
| Metoprolol Succinate | 259 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-27
- Last updated
- 2023-06-30
Frequently asked questions
- What is James Mason's NPI number?
- James Mason's National Provider Identifier (NPI) is 1346277050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mason's specialty?
- James Mason is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Mason located?
- James Mason's practice location on file with NPPES is 800 Ayrault Rd Ste 200, Fairport, NY 14450-8941.
- What is James Mason's phone number?
- The practice phone number listed in the NPPES registry for James Mason is (585) 602-2300.
- Does James Mason accept Medicare?
- James Mason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Mason's NPI active?
- Yes — James Mason's NPI (1346277050) is active in the NPPES registry as of the last update on 2023-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.