William Yancy, M.D., M.H.S.
NPI 1598851974 · Internal Medicine Physician · Durham, NC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Yancy, M.D., M.H.S. is a Internal Medicine Physician provider in Durham, NC (NPI 1598851974).
Provider details
- NPI number
- 1598851974
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.H.S.
- Sex
- Male
- Sole proprietor
- No
- License
- 2000-01339 (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
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
824 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) |
|---|---|---|
| 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 | 319 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 303 | $119 |
| Face-To-Face Behavioral Counseling for Obesity, 15 MinutesG0447 | 88 | $24 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 39 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $84 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tirzepatidebrand: Mounjaro | 113 | 23 |
| Bupropion Hclbrand: Bupropion Xl | 86 | 23 |
| Metformin Hclbrand: Metformin Hcl Er | 77 | 31 |
| Semaglutidebrand: Ozempic | 67 | 16 |
| Naltrexone Hcl | 60 | 17 |
| Topiramate | 30 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2014-05-14
Frequently asked questions
- What is William Yancy's NPI number?
- William Yancy's National Provider Identifier (NPI) is 1598851974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Yancy's specialty?
- William Yancy is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Yancy located?
- William Yancy's practice location on file with NPPES is 4220 N Roxboro St, Durham, NC 27704-1826.
- What is William Yancy's phone number?
- The practice phone number listed in the NPPES registry for William Yancy is (919) 684-8111.
- Does William Yancy accept Medicare?
- William Yancy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Yancy's NPI active?
- Yes — William Yancy's NPI (1598851974) is active in the NPPES registry as of the last update on 2014-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.