W. Greif, M.D.
NPI 1801863535 · Diagnostic Radiology Physician · San Antonio, TX
W. Greif, M.D. is a Diagnostic Radiology Physician provider in San Antonio, TX (NPI 1801863535).
Provider details
- NPI number
- 1801863535
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- J6119 (TX)
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
20 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
- 2006-03-01
- Last updated
- 2016-03-31
Frequently asked questions
- What is W. Greif's NPI number?
- W. Greif's National Provider Identifier (NPI) is 1801863535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is W. Greif's specialty?
- W. Greif is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is W. Greif located?
- W. Greif's practice location on file with NPPES is 8401 Datapoint Dr, San Antonio, TX 78229-5900.
- What is W. Greif's phone number?
- The practice phone number listed in the NPPES registry for W. Greif is (210) 616-7700.
- Is W. Greif's NPI active?
- Yes — W. Greif's NPI (1801863535) is active in the NPPES registry as of the last update on 2016-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.