James Mason
NPI 1336646538 · Anesthesiology Physician · Chapel Hill, NC
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Mason is a Anesthesiology Physician provider in Chapel Hill, NC (NPI 1336646538).
Provider details
- NPI number
- 1336646538
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 2024-01932 (NC)
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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
23 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) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 12 | $118 |
| Anesthesia for Lens Surgery00142 | 11 | $76 |
Typical Medicare-allowed amounts for these services range $76–$118 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- 1611 Nw 12th AveMiami, FL 33136-1005Phone: (305) 585-6970Fax: (305) 545-6501
- 500 S Preston St Rm 305Louisville, KY 40202-1702Phone: (502) 852-8696
Registry dates
- Enumerated
- 2018-04-12
- Last updated
- 2024-09-05
- Certified
- 2024-09-05
Frequently asked questions
- What is James Mason's NPI number?
- James Mason's National Provider Identifier (NPI) is 1336646538, 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 Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is James Mason located?
- James Mason's practice location on file with NPPES is 101 Manning Dr, Chapel Hill, NC 27514-4220.
- What is James Mason's phone number?
- The practice phone number listed in the NPPES registry for James Mason is (984) 974-1000.
- 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 (1336646538) is active in the NPPES registry as of the last update on 2024-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.