William Halstenberg, MD
NPI 1699770685 · Internal Medicine Physician · Asheville, NC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Halstenberg, MD is a Internal Medicine Physician provider in Asheville, NC (NPI 1699770685).
Provider details
- NPI number
- 1699770685
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9400820 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2005-06-16
- Last updated
- 2015-10-21
Frequently asked questions
- What is William Halstenberg's NPI number?
- William Halstenberg's National Provider Identifier (NPI) is 1699770685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Halstenberg's specialty?
- William Halstenberg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Halstenberg located?
- William Halstenberg's practice location on file with NPPES is 509 Biltmore Ave, Asheville, NC 28801-4601.
- What is William Halstenberg's phone number?
- The practice phone number listed in the NPPES registry for William Halstenberg is (828) 213-4411.
- Does William Halstenberg accept Medicare?
- William Halstenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Halstenberg's NPI active?
- Yes — William Halstenberg's NPI (1699770685) is active in the NPPES registry as of the last update on 2015-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.