Robert C. Geiger, M. D., Professional Corporation
NPI 1588932982 · Medical Specialty Clinic/Center · Sonoma, CA
Robert C. Geiger, M. D., Professional Corporation is a Medical Specialty Clinic/Center organization in Sonoma, CA (NPI 1588932982).
Provider details
- NPI number
- 1588932982
- Entity type
- Organization
- Primary specialty
- Medical Specialty Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Robert Geiger, Owner(707) 996-7077
- License
- A17117 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
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
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
- 2011-12-13
- Last updated
- 2011-12-13
Frequently asked questions
- What is Robert C. Geiger, M. D., Professional Corporation's NPI number?
- Robert C. Geiger, M. D., Professional Corporation's National Provider Identifier (NPI) is 1588932982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Robert C. Geiger, M. D., Professional Corporation?
- Robert C. Geiger, M. D., Professional Corporation is classified in the NPPES registry as Medical Specialty Clinic/Center (Ambulatory Health Care Facilities).
- Where is Robert C. Geiger, M. D., Professional Corporation located?
- Robert C. Geiger, M. D., Professional Corporation's practice location on file with NPPES is 181 Andrieux St Ste 106, Sonoma, CA 95476-6920.
- What is Robert C. Geiger, M. D., Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Robert C. Geiger, M. D., Professional Corporation is (707) 996-7077.
- Who is the authorized official for Robert C. Geiger, M. D., Professional Corporation?
- The authorized official listed on Robert C. Geiger, M. D., Professional Corporation's NPPES record is Robert Geiger, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Robert C. Geiger, M. D., Professional Corporation's NPI active?
- Yes — Robert C. Geiger, M. D., Professional Corporation's NPI (1588932982) is active in the NPPES registry as of the last update on 2011-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.