NPPES file of Aug 9, 2026

Marla Joy Williamson, NP

Family Nurse Practitioner · Inglewood, CA

Marla Joy Williamson, NP is a family nurse practitioner with a practice address in Inglewood, California, and NPI 1831927078, issued on Jul 22, 2024. Check the license (California 95028894, 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
1831927078
Name
Marla Joy Williamson
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95028894 CA
Self-reported in NPPES; status is on the state search
Practice location
933 N Cedar St Apt 16, Inglewood, CA 90302
Phone
(424) 298-7763
Enumerated
Jul 22, 2024
Record last updated
Jul 22, 2024
Medicare enrollment
Enrolled (PECOS I20241104000524); 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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Verify Marla Joy Williamson 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 95028894
    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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99% fewer Medicare Part D claims than the average family nurse practitioner in 2024

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

  1. Marla Williamson17
  2. Specialty average1,305

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. Altea Medical California PCEureka, CA

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

Marla Joy Williamson among 16,966 family nurse practitioner records in California

Marla Joy Williamson, NP 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 2024, is newer than 83% of them.

  • NPI issued2024 · 83% of these records are older, 10% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2023 · median 2019 among the 6,793 with a school on file
  • Record last updated2024 · 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).

41 family nurse practitioner records list a practice address in Inglewood

They are 41 of the 1,428 NPPES records with a practice address in Inglewood, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Senait Adefris, FNP-BCInglewood, CA 903021437862968
  2. Karrylee JohnsonInglewood, CA 903021780302711
  3. Martha Wendemineh, BSN, FNPInglewood, CA 903021265075428
  4. Roxanne Abella, NP-BCInglewood, CA 903011245993161
  5. Loveth Amakor, NPInglewood, CA 903011558049833
  6. Carmen Arias Perez, FNP-CInglewood, CA 903011699489435
  7. Halima Azim, NPInglewood, CA 903011184396822
  8. Victor John Barcarse, NPInglewood, CA 903011629646286

Common questions

What is Marla Joy Williamson, NP's NPI number?

Marla Joy Williamson, NP's National Provider Identifier (NPI) is 1831927078, issued on Jul 22, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Marla Joy Williamson, NP located?

The NPPES record lists a practice address at 933 N Cedar St Apt 16, Inglewood, CA, 90302. Phone: (424) 298-7763. Providers update this record themselves, so call before visiting.

How can I verify Marla Joy Williamson, NP's license?

NPPES lists California license number 95028894, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Marla Joy Williamson, NP prescribe under Medicare Part D?

In 2024, Marla Joy Williamson, NP had 17 Medicare Part D claims; 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.