Mercedes Montalvo, MD
NPI 1871836320 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mercedes Montalvo, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1871836320).
Provider details
- NPI number
- 1871836320
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 115 | 44 |
| Losartan Potassium | 96 | 34 |
| Amlodipine Besylate | 70 | 27 |
| Metformin Hcl | 59 | 24 |
| Gabapentin | 54 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 47 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-03
- Last updated
- 2018-03-20
Frequently asked questions
- What is Mercedes Montalvo's NPI number?
- Mercedes Montalvo's National Provider Identifier (NPI) is 1871836320, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mercedes Montalvo's specialty?
- Mercedes Montalvo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mercedes Montalvo located?
- Mercedes Montalvo's practice location on file with NPPES is 701 W Cesar Estrada Chavez Ave, Los Angeles, CA 90012.
- What is Mercedes Montalvo's phone number?
- The practice phone number listed in the NPPES registry for Mercedes Montalvo is (213) 217-5300.
- Does Mercedes Montalvo accept Medicare?
- Mercedes Montalvo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mercedes Montalvo's NPI active?
- Yes — Mercedes Montalvo's NPI (1871836320) is active in the NPPES registry as of the last update on 2018-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.