William Giesing, MD
NPI 1952044992 · Internal Medicine Physician · Dallas, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Giesing, MD is a Internal Medicine Physician provider in Dallas, TX (NPI 1952044992).
Provider details
- NPI number
- 1952044992
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2022-04-18
- Last updated
- 2025-07-18
- Certified
- 2025-07-18
Frequently asked questions
- What is William Giesing's NPI number?
- William Giesing's National Provider Identifier (NPI) is 1952044992, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Giesing's specialty?
- William Giesing is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Giesing located?
- William Giesing's practice location on file with NPPES is 1441 N Beckley Ave, Dallas, TX 75203-1201.
- What is William Giesing's phone number?
- The practice phone number listed in the NPPES registry for William Giesing is (214) 947-2306.
- Does William Giesing accept Medicare?
- William Giesing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Giesing's NPI active?
- Yes — William Giesing's NPI (1952044992) is active in the NPPES registry as of the last update on 2025-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.