William Haas, MD
NPI 1821357856 · Family Medicine Physician · Charlotte, NC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Haas, MD is a Family Medicine Physician provider in Charlotte, NC (NPI 1821357856).
Provider details
- NPI number
- 1821357856
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 182990 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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)
- 707 N Alvernon WaySuite 101Tucson, AZ 85711-1827Phone: (520) 694-8888Fax: (520) 694-1640
Registry dates
- Enumerated
- 2012-05-11
- Last updated
- 2023-03-07
- Certified
- 2021-04-09
Frequently asked questions
- What is William Haas's NPI number?
- William Haas's National Provider Identifier (NPI) is 1821357856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Haas's specialty?
- William Haas is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Haas located?
- William Haas's practice location on file with NPPES is 441 N Wendover Rd, Charlotte, NC 28211-1064.
- What is William Haas's phone number?
- The practice phone number listed in the NPPES registry for William Haas is (828) 712-0102.
- Does William Haas accept Medicare?
- William Haas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Haas's NPI active?
- Yes — William Haas's NPI (1821357856) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.