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Gregory Ko, O.D.
NPI 1790838092 · Optometrist · Pleasanton, CA
Gregory Ko, O.D. is a Optometrist provider in Pleasanton, CA (NPI 1790838092).
Provider details
- NPI number
- 1790838092
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5976T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
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
5580 Springdale Ave
Ste E
Pleasanton, CA 94588-3707
Phone: (925) 463-3100
Approximate (ZIP-level) locationGet directions
Mailing address
4180 Lark Ct
Fremont, CA 94555-1116
Registry dates
- Enumerated
- 2007-01-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Ko's NPI number?
- Gregory Ko's National Provider Identifier (NPI) is 1790838092, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Ko's specialty?
- Gregory Ko is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gregory Ko located?
- Gregory Ko's practice location on file with NPPES is 5580 Springdale Ave, Pleasanton, CA 94588-3707.
- What is Gregory Ko's phone number?
- The practice phone number listed in the NPPES registry for Gregory Ko is (925) 463-3100.
- Is Gregory Ko's NPI active?
- Yes — Gregory Ko's NPI (1790838092) 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.