NORTHERN CALIFORNIA CORNEA ASSOCIATES INC
NPI 1992889240
Ophthalmology in Walnut Creek, CA
About Northern California Cornea Associates Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NORTHERN CALIFORNIA CORNEA ASSOCIATES INC (NPI 1992889240) is a healthcare organization registered as an ophthalmology in Walnut Creek, California and active in the NPI registry since October 2006. The organization lists David W Vastine, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Northern California Cornea Associates Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by March 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
10Medicare enrollment records show 10 clinicians reassign Medicare billing to Northern California Cornea Associates Inc, which bills Medicare for the services they deliver. Of these, 6 practice within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (10)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Northern California Cornea Associates Inc's NPI number?
The NPI number for Northern California Cornea Associates Inc is 1992889240. It was assigned to this organization in the NPPES registry on October 24, 2006.
Where is Northern California Cornea Associates Inc located?
Northern California Cornea Associates Inc is located at 122 La Casa Via Ste 222, Walnut Creek, CA 94598. The listed phone number is (925) 947-0888.
What is Northern California Cornea Associates Inc's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Northern California Cornea Associates Inc enrolled in Medicare?
Yes. Northern California Cornea Associates Inc is registered in the Medicare PECOS enrollment system.
When is Northern California Cornea Associates Inc's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Northern California Cornea Associates Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 2 Medicare specialties reassign their Medicare billing to Northern California Cornea Associates Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Ophthalmology (6) and Optometry (4). Of these, 6 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Northern California Cornea Associates Inc was last updated on April 10, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Northern California Cornea Associates Inc · NPI 1992889240
Ophthalmology organization in Walnut Creek, California. Organization record, active in the CMS NPPES registry since October 24, 2006.
## Identity
- **NPI:** 1992889240 (Entity type: Organization)
- **Enumerated:** October 24, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **Organization subpart:** No
- **Authorized official:** David Vastine, OWNER
## Practice location
- **Address:** 122 LA CASA VIA, STE 222, Walnut Creek, CA 94598
- **Phone:** (925) 947-0888 · **Fax:** (925) 947-4385
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** March 31, 2027 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 10 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Ophthalmology (6), Optometry (4); 6 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 10, 2008
- **Other identifiers:** Medicaid GSD005430 (CA); Medicaid GR0103840 (CA); Medicare NSC 5824230002
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Source: [NPI Profile](https://npiprofile.com/npi/1992889240) · Data from the CMS NPPES public registry.