Gary Allan Osias, OD
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 2687 Castro Valley Blvd, Castro Valley, CA 94546-5409
- Practice phone
- Call (510) 581-1553
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Primary Eyecare Optometrics
Eye care practice · Castro Valley, California
Find Gary Osias' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Gary Allan Osias is an optometrist in Castro Valley, California
Gary Osias practices at Primary Eyecare Optometrics in Castro Valley, California.
Gary Osias' NPI, 1639230923, was assigned on December 12, 2006. Gary Osias graduated from University of California - School of Optometry in 1980. Gary Osias holds California license 07027T.
- NPI
- 1639230923NPI Registry (opens in a new tab)
- NPI enumeration date
- December 12, 2006
- NPI status
- Active
- Practice phone
- (510) 581-1553
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gary Allan Osias practices at Primary Eyecare Optometrics in Castro Valley, California
Gary Osias' primary practice is Primary Eyecare Optometrics, at 2687 Castro Valley Blvd, Castro Valley, CA 94546-5409. The practice phone is (510) 581-1553.
- Primary Eyecare Optometrics2687 Castro Valley Blvd, Castro Valley, CA 94546-5409Phone(510) 581-1553
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gary Allan Osias is affiliated with 2 sites of care and 2 medical groups
Gary Osias' primary practice is Primary Eyecare Optometrics in Castro Valley, California. Dmand AI also links Gary Osias to 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Gary Allan Osias' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gary Osias practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Primary Eyecare Optometrics | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Gary Allan Osias is one of 7,206 optometrists in California
Optometrist is Gary Osias' primary specialty in the NPI Registry, under taxonomy code 152W00000X. Gary Osias is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Gary Osias
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Gary Allan Osias' patients have a median age of 77
Across all payers, Dmand AI patient panel data puts Gary Osias' median patient age at 77, with 50% women.
Gary Osias' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Gary Allan Osias graduated from University of California - School of Optometry
Gary Osias graduated from University of California - School of Optometry in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Gary Allan Osias's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Gary Allan Osias
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gary Allan Osias' NPI number?
Gary Allan Osias' NPI number is 1639230923. It was assigned on December 12, 2006, and it is active in the NPI Registry.
What does Gary Allan Osias specialize in?
Gary Allan Osias is an optometrist in Castro Valley, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Gary Allan Osias practice?
Gary Osias practices at 2687 Castro Valley Blvd, Castro Valley, CA 94546-5409. Gary Osias' primary practice is Primary Eyecare Optometrics in Castro Valley, California. Dmand AI also links Gary Osias to 2 medical groups and 1 group practice or clinic.
What is Gary Allan Osias' office phone number?
The practice phone on file for Gary Osias is (510) 581-1553.
What is Gary Allan Osias' medical license number?
Gary Osias holds California license 07027T.
Where did Gary Allan Osias go to medical school?
Gary Osias graduated from University of California - School of Optometry in 1980.
How long has Gary Allan Osias been practicing?
Gary Osias graduated from medical school in 1980, 46 years ago.
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