Erika Monterroza, MD
NPI 1033609219 · Family Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erika Monterroza, MD is a Family Medicine Physician provider in Los Angeles, CA (NPI 1033609219).
Provider details
- NPI number
- 1033609219
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A179262 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 26 | 12 |
| Amlodipine Besylate | 16 | — |
| Lisinopril | 16 | — |
| Metformin Hcl | 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-14
- Last updated
- 2025-04-29
- Certified
- 2025-04-29
Frequently asked questions
- What is Erika Monterroza's NPI number?
- Erika Monterroza's National Provider Identifier (NPI) is 1033609219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erika Monterroza's specialty?
- Erika Monterroza is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Erika Monterroza located?
- Erika Monterroza's practice location on file with NPPES is 2010 Zonal Ave Ste 4p81, Los Angeles, CA 90033-1026.
- What is Erika Monterroza's phone number?
- The practice phone number listed in the NPPES registry for Erika Monterroza is (233) 409-8258.
- Does Erika Monterroza accept Medicare?
- Erika Monterroza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erika Monterroza's NPI active?
- Yes — Erika Monterroza's NPI (1033609219) is active in the NPPES registry as of the last update on 2025-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.