IndividualActive
Roger Greenwald, M.D.
NPI 1124223482 · Ophthalmology Physician · Danville, CA
Roger Greenwald, M.D. is a Ophthalmology Physician provider in Danville, CA (NPI 1124223482).
Provider details
- NPI number
- 1124223482
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C335960 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 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
909 San Ramon Valley Blvd
#114
Danville, CA 94526-4038
Phone: (925) 837-6428
Fax: (925) 837-1403
Street-level locationGet directions
Mailing address
909 San Ramon Valley Blvd
Danville, CA 94526-4038
Registry dates
- Enumerated
- 2007-06-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Roger Greenwald's NPI number?
- Roger Greenwald's National Provider Identifier (NPI) is 1124223482, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roger Greenwald's specialty?
- Roger Greenwald is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Roger Greenwald located?
- Roger Greenwald's practice location on file with NPPES is 909 San Ramon Valley Blvd, Danville, CA 94526-4038.
- What is Roger Greenwald's phone number?
- The practice phone number listed in the NPPES registry for Roger Greenwald is (925) 837-6428.
- Is Roger Greenwald's NPI active?
- Yes — Roger Greenwald's NPI (1124223482) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.