Marcellina Johnson, NP
NPI 1346544830 · Psychiatric/Mental Health Nurse Practitioner · Los Angeles, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcellina Johnson, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Los Angeles, CA (NPI 1346544830).
Provider details
- NPI number
- 1346544830
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 457076 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 31 | 31 |
| Prednisone | 28 | 28 |
| Cephalexin | 23 | 23 |
| Ibuprofen | 23 | 23 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 18 | 18 |
| Ciprofloxacin Hcl | 15 | 15 |
| Meloxicam | 13 | 11 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-12-27
- Last updated
- 2021-12-02
- Certified
- 2021-01-27
Frequently asked questions
- What is Marcellina Johnson's NPI number?
- Marcellina Johnson's National Provider Identifier (NPI) is 1346544830, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcellina Johnson's specialty?
- Marcellina Johnson is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcellina Johnson located?
- Marcellina Johnson's practice location on file with NPPES is 550 S Vermont Ave, Los Angeles, CA 90020-1912.
- What is Marcellina Johnson's phone number?
- The practice phone number listed in the NPPES registry for Marcellina Johnson is (800) 854-7771.
- Does Marcellina Johnson accept Medicare?
- Marcellina Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcellina Johnson's NPI active?
- Yes — Marcellina Johnson's NPI (1346544830) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.