NPPES file of Aug 9, 2026

Marcellina Johnson, NP

Psychiatric/Mental Health Nurse Practitioner · Los Angeles, CA

Marcellina Johnson, NP is a psychiatric/mental health nurse practitioner with a practice address in Los Angeles, California, and NPI 1346544830, issued on Dec 27, 2010. Check the license (California 182456, 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
1346544830
Name
Marcellina Johnson
Credential
NP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
182456 CA
457076 CA
Self-reported in NPPES; status is on the state search
Practice location
550 S Vermont Ave, Los Angeles, CA 90020
Phone
(800) 854-7771
Enumerated
Dec 27, 2010
Record last updated
Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20151022001884); 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 psychiatric/mental health nurse practitioner records → All 4,226 in California → Look up another NPI →

Also registered at 550 S Vermont Ave

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

  1. Jennifer Acero, LCSWClinical Social Worker1447468749
  2. Christi AcostaCase Manager/Care Coordinator1740582592
  3. Maria Acosta, R.N.Psychiatric/Mental Health Registered Nurse1760570345
  4. Juan Aguirre, LCSWClinical Social Worker1821113499
  5. Jessica Ahearn, LCSWClinical Social Worker1538257639
  6. Aaron Albelo, LCSWClinical Social Worker1316060379

Verify Marcellina 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 182456    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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66% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

312 Medicare Part D claims for 221 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. 13 claims were for opioids.

  1. Marcellina Johnson312
  2. Specialty average906

Most prescribed

  1. Azithromycin31 claims
  2. Prednisone28 claims
  3. Cephalexin23 claims
  4. Ibuprofen23 claims
  5. Sulfamethoxazole-Trimethoprim18 claims
  6. Ciprofloxacin Hcl15 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: $13.81

1 payment: food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marcellina Johnson$13.81
  2. Specialty average$1,027.77

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. Southern California Permanente Medical GroupBaldwin Park, CA

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

Marcellina Johnson among 4,226 psychiatric/mental health nurse practitioner records in California

Marcellina Johnson, NP is one of 4,226 psychiatric/mental health nurse practitioner records with a practice address in California. 62% 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 10% of them.

  • NPI issued2010 · 10% of these records are older, 89% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2008 · median 2021 among the 1,965 with a school on file
  • Record last updated2021 · 16% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in California

There are 4,226 psychiatric/mental health nurse practitioner records in California.

All 4,226 in California → Every provider in Los Angeles → Psychiatric/Mental Health Nurse Practitioner nationwide →

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Kremena DimitrovaLos Angeles, CA 900201033059605
  2. Alejandra GuzmanLos Angeles, CA 900201871465369
  3. Joan Hughes, PMHNPLos Angeles, CA 900201891861324
  4. Sharon McDaniel, N.P.Los Angeles, CA 900201316018591
  5. Lauren Morovati, NPLos Angeles, CA 900201568300614
  6. Alice Ngo-Tieng, PMHNP-BCLos Angeles, CA 900201467080887
  7. Thang Nguyen, DNP, PMHNPLos Angeles, CA 900201073798468
  8. Nkechi PerkinsLos Angeles, CA 900201134617939

Common questions

What is Marcellina Johnson, NP's NPI number?

Marcellina Johnson, NP's National Provider Identifier (NPI) is 1346544830, issued on Dec 27, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Marcellina Johnson, NP located?

The NPPES record lists a practice address at 550 S Vermont Ave, Los Angeles, CA, 90020. Phone: (800) 854-7771. Providers update this record themselves, so call before visiting.

How can I verify Marcellina Johnson, NP's license?

NPPES lists California license number 182456, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Marcellina Johnson, NP prescribe under Medicare Part D?

In 2024, Marcellina Johnson, NP had 312 Medicare Part D claims for 221 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.