Gigi Simmons, MD
NPI 1891288957 · Addiction Medicine (Family Medicine) Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gigi Simmons, MD is a Addiction Medicine (Family Medicine) Physician provider in Los Angeles, CA (NPI 1891288957).
Provider details
- NPI number
- 1891288957
- Entity type
- Individual
- Primary specialty
- Addiction Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A173667 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 71 | 28 |
| Amlodipine Besylate | 46 | 18 |
| Losartan Potassium | 30 | 13 |
| Gabapentin | 30 | 16 |
| Metoprolol Tartrate | 25 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 22 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$50 across 2 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
- 2018-06-12
- Last updated
- 2022-10-06
- Certified
- 2022-10-06
Frequently asked questions
- What is Gigi Simmons's NPI number?
- Gigi Simmons's National Provider Identifier (NPI) is 1891288957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gigi Simmons's specialty?
- Gigi Simmons is listed in the NPPES registry with a primary specialty of Addiction Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Gigi Simmons located?
- Gigi Simmons's practice location on file with NPPES is 1670 E 120th St, Los Angeles, CA 90059-3026.
- What is Gigi Simmons's phone number?
- The practice phone number listed in the NPPES registry for Gigi Simmons is (424) 338-1000.
- Does Gigi Simmons accept Medicare?
- Gigi Simmons is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gigi Simmons's NPI active?
- Yes — Gigi Simmons's NPI (1891288957) is active in the NPPES registry as of the last update on 2022-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.