Cecily Ann Marie Arenas, FNP
Family Nurse Practitioner · San Marcos, CA
Cecily Ann Marie Arenas, FNP is a family nurse practitioner with a practice address in San Marcos, California, and NPI 1700031507, issued on Nov 20, 2008. Check the license (California NP18536, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cecily Ann Marie Arenas
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- NP18536 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1595 Grand Ave Ste 106, San Marcos, CA 92078
- Phone
- (760) 736-6767
- Enumerated
- Nov 20, 2008
- Record last updated
- Jun 9, 2026
- Medicare enrollment
- Enrolled (PECOS I20120731000053); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 1595 Grand Ave Ste 106
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Haley Rubio, PA-CPhysician Assistant1598394371
- Alejandro Soto, M.D.Family Medicine Physician1881936268
Verify Cecily Ann Marie Arenas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP18536Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average family nurse practitioner in 2024
503 Medicare Part D claims for 181 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Metoprolol Succinate47 claims
- Rosuvastatin Calcium38 claims
- Eliquis35 claims
- Furosemide32 claims
- Atorvastatin Calcium29 claims
- Carvedilol26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $126.80
6 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cecily Ann Marie Arenas among 16,966 family nurse practitioner records in California
Cecily Ann Marie Arenas, FNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 13% of them.
- NPI issued2008 · 13% of these records are older, 85% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2008 · median 2019 among the 6,793 with a school on file
- Record last updated2026 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 family nurse practitioner records list a practice address in San Marcos
They are 45 of the 1,985 NPPES records with a practice address in San Marcos, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in San Marcos → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Loribette Antonio, F.N.P.San Marcos, CA 920781467882910
- Shannon Baker, FNPSan Marcos, CA 920781518191014
- Caitlin Brickman, NP-CSan Marcos, CA 920781902188303
- Jackie Do, FNPSan Marcos, CA 920781356925283
- Jill Elsdon, FNPSan Marcos, CA 920781346327020
- Natassia Francis, FNP, MSN, RN, PHNSan Marcos, CA 920781407547318
- Kelly Halloran, MN,RNC,FNP,DNCSan Marcos, CA 920781851418206
- Cheryl Jucksch, FNP-BCSan Marcos, CA 920781952538993
Common questions
What is Cecily Ann Marie Arenas, FNP's NPI number?
Cecily Ann Marie Arenas, FNP's National Provider Identifier (NPI) is 1700031507, issued on Nov 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Cecily Ann Marie Arenas, FNP located?
The NPPES record lists a practice address at 1595 Grand Ave Ste 106, San Marcos, CA, 92078. Phone: (760) 736-6767. Providers update this record themselves, so call before visiting.
How can I verify Cecily Ann Marie Arenas, FNP's license?
NPPES lists California license number NP18536, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Cecily Ann Marie Arenas, FNP prescribe under Medicare Part D?
In 2024, Cecily Ann Marie Arenas, FNP had 503 Medicare Part D claims for 181 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.