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William Geissert, MD
NPI 1477631372 · Internal Medicine Physician · Fresno, CA
William Geissert, MD is a Internal Medicine Physician provider in Fresno, CA (NPI 1477631372).
Provider details
- NPI number
- 1477631372
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G62194 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
4770 W Herndon Ave # 111
Fresno, CA 93722-8401
Phone: (559) 450-2273
Street-level locationGet directions
Mailing address
Po Box 5193
Fresno, CA 93755-5193
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2016-08-17
Frequently asked questions
- What is William Geissert's NPI number?
- William Geissert's National Provider Identifier (NPI) is 1477631372, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Geissert's specialty?
- William Geissert is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Geissert located?
- William Geissert's practice location on file with NPPES is 4770 W Herndon Ave # 111, Fresno, CA 93722-8401.
- What is William Geissert's phone number?
- The practice phone number listed in the NPPES registry for William Geissert is (559) 450-2273.
- Is William Geissert's NPI active?
- Yes — William Geissert's NPI (1477631372) is active in the NPPES registry as of the last update on 2016-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.