William Felkel, M.D.
NPI 1821309998 · Psychiatry Physician · Greenville, SC
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Felkel, M.D. is a Psychiatry Physician provider in Greenville, SC (NPI 1821309998).
Provider details
- NPI number
- 1821309998
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2012-01733 (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 tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 4515 Premier DrSte 402aHigh Point, NC 27265-8357Phone: (336) 802-2160Fax: (336) 802-2161
Registry dates
- Enumerated
- 2010-06-23
- Last updated
- 2024-10-30
- Certified
- 2024-10-30
Frequently asked questions
- What is William Felkel's NPI number?
- William Felkel's National Provider Identifier (NPI) is 1821309998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Felkel's specialty?
- William Felkel is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Felkel located?
- William Felkel's practice location on file with NPPES is 104 Innovation Dr Ste 2000, Greenville, SC 29607-5253.
- What is William Felkel's phone number?
- The practice phone number listed in the NPPES registry for William Felkel is (864) 603-6300.
- Does William Felkel accept Medicare?
- William Felkel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Felkel's NPI active?
- Yes — William Felkel's NPI (1821309998) is active in the NPPES registry as of the last update on 2024-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.