NPPES file of Aug 9, 2026

Diana Linda Ortiz-Castro, M.S.N. R.N. C-FNP

Family Nurse Practitioner · Wilmington, CA

Diana Linda Ortiz-Castro, M.S.N. R.N. C-FNP is a family nurse practitioner with a practice address in Wilmington, California, and NPI 1285828509, issued on Aug 29, 2007. Check the license (California 348337 NP CERT:9704, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285828509
Name
Diana Linda Ortiz-Castro
Credential
M.S.N. R.N. C-FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
348337 NP CERT:9704 CA
Self-reported in NPPES; status is on the state search
Practice location
1325 Broad Ave, Wilmington, CA 90744
Phone
(310) 518-8800
Enumerated
Aug 29, 2007
Record last updated
Aug 29, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20121211000208); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 1325 Broad Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Laneatra De HughesAmbulatory Care Registered Nurse1407542186
  2. Asia Delatorre, MDFamily Medicine Physician1598105132
  3. Mauricio Flores, M.D.Family Medicine Physician1134156896
  4. Gilberto Granados, M.D.Family Medicine Physician1811926280
  5. Jesus Gutierrez, M.D.Family Medicine Physician1083643456
  6. Clarence Monteclaro, MD, MBAFamily Medicine Physician1548573793

Verify Diana Linda Ortiz-Castro in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 348337 NP CERT:9704    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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46% fewer Medicare Part D claims than the average family nurse practitioner in 2024

704 Medicare Part D claims for 52 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Diana Ortiz-Castro704
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium63 claims
  2. Metformin Hcl61 claims
  3. Amlodipine Besylate54 claims
  4. Losartan Potassium47 claims
  5. Glipizide39 claims
  6. Lisinopril39 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: $16.85

1 payment: food and beverage; the largest payer was Pfizer Inc. 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.

  1. Diana Ortiz-Castro$16.85
  2. Specialty average$650.95

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

  1. County OF Los AngelesCompton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diana Linda Ortiz-Castro among 16,966 family nurse practitioner records in California

Diana Linda Ortiz-Castro, M.S.N. R.N. C-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 2007, is newer than 7% of them.

  • NPI issued2007 · 7% of these records are older, 87% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated1997 · median 2019 among the 6,793 with a school on file
  • Record last updated2007 · 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).

8 family nurse practitioner records list a practice address in Wilmington

They are 8 of the 267 NPPES records with a practice address in Wilmington, and 16,966 family nurse practitioner records in California.

All 16,966 in California → Every provider in Wilmington → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Yemi Akinwole, DNPWilmington, CA 907441740507052
  2. Agnes Choi, DNPWilmington, CA 907441902424047
  3. Timothy Collins, NP-C, DCWilmington, CA 907441841334067
  4. Vanessa Santiago, NPWilmington, CA 907441609518497
  5. Carole Stevenson, RN, MSN, FNP-BCWilmington, CA 907441023630290
  6. Linda Takvorian, FNP-CWilmington, CA 907441407354384
  7. Christopher Vargas, NPWilmington, CA 907441831818533
  8. Ji Seon BaeCarson, CA 907451619390630

Common questions

What is Diana Linda Ortiz-Castro, M.S.N. R.N. C-FNP's NPI number?

Diana Linda Ortiz-Castro, M.S.N. R.N. C-FNP's National Provider Identifier (NPI) is 1285828509, issued on Aug 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Diana Linda Ortiz-Castro, M.S.N. R.N. C-FNP located?

The NPPES record lists a practice address at 1325 Broad Ave, Wilmington, CA, 90744. Phone: (310) 518-8800. Providers update this record themselves, so call before visiting.

How can I verify Diana Linda Ortiz-Castro, M.S.N. R.N. C-FNP's license?

NPPES lists California license number 348337 NP CERT:9704, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Diana Linda Ortiz-Castro, M.S.N. R.N. C-FNP prescribe under Medicare Part D?

In 2024, Diana Linda Ortiz-Castro, M.S.N. R.N. C-FNP had 704 Medicare Part D claims for 52 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.