Douglas D Gerstein, MD, Inc
NPI 1356506653 · Ophthalmology Physician · San Rafael, CA
Douglas D Gerstein, MD, Inc is a Ophthalmology Physician organization in San Rafael, CA (NPI 1356506653).
Provider details
- NPI number
- 1356506653
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Douglas Gerstein, Director(415) 306-6779
- License
- G24353 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-07-25
- Last updated
- 2008-07-25
Frequently asked questions
- What is Douglas D Gerstein, MD, Inc's NPI number?
- Douglas D Gerstein, MD, Inc's National Provider Identifier (NPI) is 1356506653, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Douglas D Gerstein, MD, Inc?
- Douglas D Gerstein, MD, Inc is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas D Gerstein, MD, Inc located?
- Douglas D Gerstein, MD, Inc's practice location on file with NPPES is 49 Dunfries Ter, San Rafael, CA 94901-2415.
- What is Douglas D Gerstein, MD, Inc's phone number?
- The practice phone number listed in the NPPES registry for Douglas D Gerstein, MD, Inc is (415) 306-6779.
- Who is the authorized official for Douglas D Gerstein, MD, Inc?
- The authorized official listed on Douglas D Gerstein, MD, Inc's NPPES record is Douglas Gerstein, Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Douglas D Gerstein, MD, Inc's NPI active?
- Yes — Douglas D Gerstein, MD, Inc's NPI (1356506653) is active in the NPPES registry as of the last update on 2008-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.