Sara Duffus, MD
NPI 1770979965 · Pediatric Endocrinology Physician · Chapel Hill, NC
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sara Duffus, MD is a Pediatric Endocrinology Physician provider in Chapel Hill, NC (NPI 1770979965).
Provider details
- NPI number
- 1770979965
- Entity type
- Individual
- Primary specialty
- Pediatric Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2022-03344 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
14 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 14 | $9 |
Typical Medicare-allowed amounts for these services range $9–$9 (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 (1)
- 3601 the Vanderbilt ClinicNashville, TN 37232-7220Phone: (615) 322-3000
Registry dates
- Enumerated
- 2015-04-14
- Last updated
- 2023-04-12
- Certified
- 2023-04-12
Frequently asked questions
- What is Sara Duffus's NPI number?
- Sara Duffus's National Provider Identifier (NPI) is 1770979965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sara Duffus's specialty?
- Sara Duffus is listed in the NPPES registry with a primary specialty of Pediatric Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Sara Duffus located?
- Sara Duffus's practice location on file with NPPES is 101 Manning Dr, Chapel Hill, NC 27514-4220.
- What is Sara Duffus's phone number?
- The practice phone number listed in the NPPES registry for Sara Duffus is (919) 962-2796.
- Does Sara Duffus accept Medicare?
- Sara Duffus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sara Duffus's NPI active?
- Yes — Sara Duffus's NPI (1770979965) is active in the NPPES registry as of the last update on 2023-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.