Annabelle Alonzo Custodio, FNP
Family Nurse Practitioner · Riverside, CA
Annabelle Alonzo Custodio, FNP is a family nurse practitioner with a practice address in Riverside, California, and NPI 1679806145, issued on Sep 15, 2009. Check the license (California 18332, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Annabelle Alonzo Custodio
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 18332 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9041 Magnolia Ave Ste 206, Riverside, CA 92503
- Phone
- (951) 354-0676
- Enumerated
- Sep 15, 2009
- Record last updated
- Sep 15, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (951) 354-5786
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 9041 Magnolia Ave Ste 206
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Annabelle Alonzo Custodio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 18332Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average family nurse practitioner in 2024
378 Medicare Part D claims for 53 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium37 claims
- Metformin Hcl24 claims
- Albuterol Sulfate Hfa22 claims
- Ozempic21 claims
- Amlodipine Besylate20 claims
- Chlorthalidone13 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: $189.27
8 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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.
Annabelle Alonzo Custodio among 16,966 family nurse practitioner records in California
Annabelle Alonzo Custodio, 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 2009, is newer than 15% of them.
- NPI issued2009 · 15% of these records are older, 83% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2009 · 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).
184 family nurse practitioner records list a practice address in Riverside
They are 184 of the 13,893 NPPES records with a practice address in Riverside, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Riverside → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Laura Aguilar, FNPRiverside, CA 925031316319106
- Melissa AlianRiverside, CA 925031700116076
- Micheline Helou, FNP-CRiverside, CA 925031609405992
- Linda Hillman, NPRiverside, CA 925031073704276
- Michael JosiahRiverside, CA 925031184264517
- James Lentz, FNPRiverside, CA 925031942332010
- Helen Lo, NPRiverside, CA 925031013042498
- Bridgett Quinonez, NPRiverside, CA 925031760874366
Common questions
What is Annabelle Alonzo Custodio, FNP's NPI number?
Annabelle Alonzo Custodio, FNP's National Provider Identifier (NPI) is 1679806145, issued on Sep 15, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Annabelle Alonzo Custodio, FNP located?
The NPPES record lists a practice address at 9041 Magnolia Ave Ste 206, Riverside, CA, 92503. Phone: (951) 354-0676. Providers update this record themselves, so call before visiting.
How can I verify Annabelle Alonzo Custodio, FNP's license?
NPPES lists California license number 18332, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Annabelle Alonzo Custodio, FNP prescribe under Medicare Part D?
In 2024, Annabelle Alonzo Custodio, FNP had 378 Medicare Part D claims for 53 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.