DRS. EDWARD P. AND DIANE M. HERNANDEZ, O.D.
NPI 1619186848
Optometrist in Duarte, CA
About Drs. Edward P. And Diane M. Hernandez, O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DRS. EDWARD P. AND DIANE M. HERNANDEZ, O.D. (NPI 1619186848) is a healthcare organization registered as an optometrist in Duarte, California and active in the NPI registry since May 2007. The organization lists Diane Mosser Hernandez, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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)
Drs. Edward P. And Diane M. Hernandez, O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by November 30, 2026
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 Drs. Edward P. And Diane M. Hernandez, O.D., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 7 within 10 miles. They are listed nearest first.
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 Drs. Edward P. And Diane M. Hernandez, O.D.'s NPI number?
The NPI number for Drs. Edward P. And Diane M. Hernandez, O.D. is 1619186848. It was assigned to this organization in the NPPES registry on May 22, 2007.
Where is Drs. Edward P. And Diane M. Hernandez, O.D. located?
Drs. Edward P. And Diane M. Hernandez, O.D. is located at 1235 Buena Vista St, Duarte, CA 91010. The listed phone number is (626) 359-8145.
What is Drs. Edward P. And Diane M. Hernandez, O.D.'s specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Drs. Edward P. And Diane M. Hernandez, O.D. enrolled in Medicare?
Yes. Drs. Edward P. And Diane M. Hernandez, O.D. is registered in the Medicare PECOS enrollment system.
When is Drs. Edward P. And Diane M. Hernandez, O.D.'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 November 30, 2026. 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 Drs. Edward P. And Diane M. Hernandez, O.D.?
According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians, all in Optometry, reassign their Medicare billing to Drs. Edward P. And Diane M. Hernandez, O.D.. 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. Of these, 1 practice at this address and 7 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 Drs. Edward P. And Diane M. Hernandez, O.D. was last updated on March 19, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Drs. Edward P. And Diane M. Hernandez, O.d. · NPI 1619186848
Optometrist organization in Duarte, California. Organization record, active in the CMS NPPES registry since May 22, 2007.
## Identity
- **NPI:** 1619186848 (Entity type: Organization)
- **Enumerated:** May 22, 2007
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **Organization subpart:** No
- **Authorized official:** Diane Hernandez, OWNER
## Practice location
- **Address:** 1235 BUENA VISTA ST, Duarte, CA 91010-2408
- **Phone:** (626) 359-8145 · **Fax:** (626) 359-4116
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** November 30, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 10 clinicians (Optometry) reassign Medicare billing to this organization (form CMS-855R); 1 practice at this address and 7 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 19, 2014
- **Other identifiers:** Medicare PIN 7121237 (CA); Medicaid GSD005310 (CA); Medicare PIN WY4040A (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1619186848) · Data from the CMS NPPES public registry.