Marion Johnson, MD
NPI 1952523086 · Allergy Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marion Johnson, MD is a Allergy Physician provider in Los Angeles, CA (NPI 1952523086).
Provider details
- NPI number
- 1952523086
- Entity type
- Individual
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Specialist174400000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
83% 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 28 | 11 |
| Levocetirizine Dihydrochloride | 27 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 19 | 11 |
| Ipratropium Bromide | 15 | — |
| Epinephrine | 13 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$615 across 17 records (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
- 2007-05-02
- Last updated
- 2025-07-30
- Certified
- 2025-07-30
Frequently asked questions
- What is Marion Johnson's NPI number?
- Marion Johnson's National Provider Identifier (NPI) is 1952523086, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marion Johnson's specialty?
- Marion Johnson is listed in the NPPES registry with a primary specialty of Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Marion Johnson located?
- Marion Johnson's practice location on file with NPPES is 1245 Wilshire Blvd Ste 817, Los Angeles, CA 90017-4808.
- What is Marion Johnson's phone number?
- The practice phone number listed in the NPPES registry for Marion Johnson is (213) 300-2102.
- Does Marion Johnson accept Medicare?
- Marion Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marion Johnson's NPI active?
- Yes — Marion Johnson's NPI (1952523086) is active in the NPPES registry as of the last update on 2025-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.