NPPES file of Aug 9, 2026

Tiffany Delores Johnson, N.P.

Adult Health Nurse Practitioner · Los Angeles, CA

Tiffany Delores Johnson, N.P. is an adult health nurse practitioner with a practice address in Los Angeles, California, and NPI 1437469269, issued on Oct 14, 2010. Check the license (California 20314, 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
1437469269
Name
Tiffany Delores Johnson
Credential
N.P.
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
20314 CA
Self-reported in NPPES; status is on the state search
Practice location
400 W 30TH St, Los Angeles, CA 90007
Phone
(213) 284-3200
Enumerated
Oct 14, 2010
Record last updated
Jun 29, 2022
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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Also registered at 400 W 30TH St

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

  1. Bridget Abajian, PA-CMedical Physician Assistant1518677061
  2. Wendi Aboagye, PA-CPhysician Assistant1376134585
  3. Kathryn Adler, FNP-BCFamily Nurse Practitioner1891453304
  4. Letty Ajiz, WHNPWomen's Health Nurse Practitioner1396492641
  5. Anissa Alfaro, MSN FNP-CPrimary Care Nurse Practitioner1497151575
  6. Claire AndresenRegistered Nurse1629449038

Verify Tiffany Delores Johnson 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 20314
    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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97% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

41 Medicare Part D claims for 26 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.

  1. Tiffany Johnson41
  2. Specialty average1,280

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.

Tiffany Delores Johnson among 1,405 adult health nurse practitioner records in California

Tiffany Delores Johnson, N.P. is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 37% of them.

  • NPI issued2010 · 37% of these records are older, 59% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileNo · 31% of these records are
  • Record last updated2022 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in California

There are 1,405 adult health nurse practitioner records in California.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Mariel Bosserman, ARNPLos Angeles, CA 900071548610934
  2. Heather Lansill, NURSE PRACTITIONERLos Angeles, CA 900071508413022
  3. Barbara Stathis, NPLos Angeles, CA 900071972236610
  4. Mary Ann Villanueva, NPLos Angeles, CA 900071649588252
  5. Jamie Yoon, NURSE PRACTITIONERLos Angeles, CA 900061093486953
  6. Catherine Hill, N.P.Los Angeles, CA 900041528088184
  7. Christine Terrones, ANP-CLos Angeles, CA 900111871931436
  8. Jenna Blaustein, NPLos Angeles, CA 900121598831547

Common questions

What is Tiffany Delores Johnson, N.P.'s NPI number?

Tiffany Delores Johnson, N.P.'s National Provider Identifier (NPI) is 1437469269, issued on Oct 14, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Tiffany Delores Johnson, N.P. located?

The NPPES record lists a practice address at 400 W 30TH St, Los Angeles, CA, 90007. Phone: (213) 284-3200. Providers update this record themselves, so call before visiting.

How can I verify Tiffany Delores Johnson, N.P.'s license?

NPPES lists California license number 20314, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Tiffany Delores Johnson, N.P. prescribe under Medicare Part D?

In 2024, Tiffany Delores Johnson, N.P. had 41 Medicare Part D claims for 26 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.