NPPES file of Aug 9, 2026

Ria Costales Martin, FNP

Nurse Practitioner · Ramona, CA

Ria Costales Martin, FNP is a nurse practitioner with a practice address in Ramona, California, and NPI 1437695079, issued on Jan 6, 2017. Check the license (California 95005321, 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
1437695079
Name
Ria Costales Martin
Credential
FNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
95005321 CA
Self-reported in NPPES; status is on the state search
Practice location
220 Rotanzi St, Ramona, CA 92065
Phone
(760) 736-6767
Enumerated
Jan 6, 2017
Record last updated
Aug 3, 2026
Medicare enrollment
Enrolled (PECOS I20170224000649); 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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Also registered at 220 Rotanzi St

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

  1. Chinh Doan, NPFamily Nurse Practitioner1083845069
  2. Sage EckenrothFamily Nurse Practitioner1982447884
  3. Lysa Ho, DOInternal Medicine Physician1821494337
  4. Dulce Mendivil DominguezFamily Medicine Physician1346197316
  5. Christopher PruterChiropractor1184250508
  6. Ana Yela Castillo, MHRIMarriage & Family Therapist1720518731

Verify Ria Costales Martin 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 95005321
    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

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31% fewer Medicare Part D claims than the average nurse practitioner in 2024

765 Medicare Part D claims for 79 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Ria Martin765
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium55 claims
  2. Lisinopril48 claims
  3. Amlodipine Besylate45 claims
  4. Metformin Hcl40 claims
  5. Basaglar Kwikpen U-10027 claims
  6. Gabapentin27 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.

Bills Medicare through one group practice

  1. Family Health Centers OF San Diego IncSan Diego, CA

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

Ria Costales Martin among 8,223 nurse practitioner records in California

Ria Costales Martin, FNP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 52% of them.

  • NPI issued2017 · 52% of these records are older, 44% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2016 · median 2017 among the 3,425 with a school on file
  • Record last updated2026 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Sharon Adler, CFNPPoway, CA 920641912973215
  2. Leah Brown, NPPoway, CA 920641215166202
  3. Enoidem Ekiko, NPPoway, CA 920641124991963
  4. Ann Evenson, CPNPPoway, CA 920641598855017
  5. Karen HallinanPoway, CA 920641780605980
  6. Mark Denniel JavierPoway, CA 920641134804206
  7. Fiona Wariuki Frank, NPPoway, CA 920641881202893
  8. Tatyana Williams, RNPoway, CA 920641750957692

Common questions

What is Ria Costales Martin, FNP's NPI number?

Ria Costales Martin, FNP's National Provider Identifier (NPI) is 1437695079, issued on Jan 6, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Ria Costales Martin, FNP located?

The NPPES record lists a practice address at 220 Rotanzi St, Ramona, CA, 92065. Phone: (760) 736-6767. Providers update this record themselves, so call before visiting.

How can I verify Ria Costales Martin, FNP's license?

NPPES lists California license number 95005321, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Ria Costales Martin, FNP prescribe under Medicare Part D?

In 2024, Ria Costales Martin, FNP had 765 Medicare Part D claims for 79 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.