CECILIO V. CAY NP
NPI 1558675330
Nurse Practitioner - Gerontology in Duarte, CA
About Cecilio V. Cay Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CECILIO V. CAY NP (NPI 1558675330) is an individual gerontology provider in Duarte, California, licensed in California (17515) and active in the NPI registry since August 2010. He is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Cecilio V. Cay Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Cecilio Cay reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Downey, CA 90241
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: The Oncology Institute Ca, A Professional Corporation
- 110 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 1,001 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91010 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DUARTE, CA 91010
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 Cecilio Cay's NPI number?
The NPI number for Cecilio Cay is 1558675330. It was assigned to this individual provider in the NPPES registry on August 4, 2010.
Where is Cecilio Cay located?
Cecilio Cay practices at 1500 Duarte Rd, Duarte, CA 91010. The listed phone number is (626) 256-4673.
What is Cecilio Cay's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Cecilio Cay enrolled in Medicare?
Yes. Cecilio Cay is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Cecilio Cay's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cecilio Cay reassigns Medicare benefits to 3 organizations: Starling Oncology Ca, A Professional Corporation (Downey, CA), Healthcare Partners Affiliates Medical Group (Los Angeles, CA) and Cedars-Sinai Medical Center (Los Angeles, CA). Each 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 Cecilio Cay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Cecilio Cay accept?
Health plans from UnitedHealthcare list Cecilio Cay as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Cecilio Cay was last updated on June 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Cecilio V. Cay, NP · NPI 1558675330
Gerontology physician in Duarte, California. Individual provider, active in the CMS NPPES registry since August 4, 2010.
## Identity
- **NPI:** 1558675330 (Entity type: Individual)
- **Enumerated:** August 4, 2010
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** 17515 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1500 DUARTE RD, Duarte, CA 91010-3012
- **Phone:** (626) 256-4673 · **Fax:** (626) 408-3911
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Starling Oncology Ca, A Professional Corporation (NPI 1275651515, Downey, CA); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA); Cedars-Sinai Medical Center (NPI 1639172372, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** June 29, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1558675330) · Data from the CMS NPPES public registry.