CECILY ANN MARIE ARENAS FNP
NPI 1700031507
Nurse Practitioner - Family in San Marcos, CA
About Cecily Ann Marie Arenas Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CECILY ANN MARIE ARENAS FNP (NPI 1700031507) is an individual family provider in San Marcos, California, licensed in California (NP18536) and active in the NPI registry since November 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Cecily Ann Marie Arenas Fnp 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92078 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN MARCOS, CA 92078
SAN MARCOS, CA 92078
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 Cecily Arenas's NPI number?
The NPI number for Cecily Arenas is 1700031507. It was assigned to this individual provider in the NPPES registry on November 20, 2008.
Where is Cecily Arenas located?
Cecily Arenas practices at 1595 Grand Ave Ste 106, San Marcos, CA 92078. The listed phone number is (760) 736-6767.
What is Cecily Arenas's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Cecily Arenas enrolled in Medicare?
Yes. Cecily Arenas 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.
When was this NPI record last updated?
The NPPES record for Cecily Arenas was last updated on June 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Cecily Ann Marie Arenas, FNP · NPI 1700031507
Family physician in San Marcos, California. Individual provider, active in the CMS NPPES registry since November 20, 2008.
## Identity
- **NPI:** 1700031507 (Entity type: Individual)
- **Enumerated:** November 20, 2008
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** NP18536 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1595 GRAND AVE STE 106, San Marcos, CA 92078-2450
- **Phone:** (760) 736-6767
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** June 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1700031507) · Data from the CMS NPPES public registry.