NPPES file of Aug 9, 2026

Irma Tan

Family Nurse Practitioner · San Monica, CA

Irma Tan is a family nurse practitioner with a practice address in San Monica, California, and NPI 1427454255, issued on Nov 5, 2014. Check the license (California 95001459, 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
1427454255
Name
Irma Tan
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95001459 CA
Self-reported in NPPES; status is on the state search
Practice location
1250 16TH Street, San Monica, CA 90731
Phone
(424) 333-2251
Enumerated
Nov 5, 2014
Record last updated
Jul 19, 2018 (not updated in 8 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Irma Tan 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 95001459
    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
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7.1 times the Medicare Part D claims of the average family nurse practitioner in 2024

9,278 Medicare Part D claims for 497 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims. 2,769 claims were for opioids.

  1. Irma Tan9,278
  2. Specialty average1,305

Most prescribed

  1. Hydrocodone-Acetaminophen1,836 claims
  2. Gabapentin1,262 claims
  3. Lidocaine789 claims
  4. Tizanidine Hcl692 claims
  5. Diclofenac Sodium551 claims
  6. Naloxone Hcl542 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: $979.97

44 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, 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. Irma Tan$979.97
  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.

Irma Tan among 16,966 family nurse practitioner records in California

Irma Tan 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 2014, is newer than 27% of them.

  • NPI issued2014 · 27% of these records are older, 69% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2018 · 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).

Family Nurse Practitioner providers in California

There are 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Julie Bartok, FNPSan Pedro, CA 907311760750046
  2. Doris Celi, APRNSan Pedro, CA 907311083474381
  3. Evelyn Desser, RN, MN, FNP-BCSan Pedro, CA 907311255459129
  4. Gabriella Garza, NURSE PRACTITIONERSan Pedro, CA 907311740763291
  5. Linda Howat, MN, RN, FNP-C,SCHOOLSan Pedro, CA 907311679752661
  6. Lindsay Iraci, NP-CSan Pedro, CA 907311225504780
  7. Christina Reichert, NPSan Pedro, CA 907311457623969
  8. Tintin Rodriguez, FNP-BCSan Pedro, CA 907311275401770

Common questions

What is Irma Tan's NPI number?

Irma Tan's National Provider Identifier (NPI) is 1427454255, issued on Nov 5, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Irma Tan located?

The NPPES record lists a practice address at 1250 16TH Street, San Monica, CA, 90731. Phone: (424) 333-2251. Providers update this record themselves, so call before visiting.

How can I verify Irma Tan's license?

NPPES lists California license number 95001459, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Irma Tan prescribe under Medicare Part D?

In 2024, Irma Tan had 9,278 Medicare Part D claims for 497 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.