Frank Marquez, MD
NPI 1922291582 · Internal Medicine Physician · Sylmar, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frank Marquez, MD is a Internal Medicine Physician provider in Sylmar, CA (NPI 1922291582).
Provider details
- NPI number
- 1922291582
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A99321 (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
18 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 35 | 27 |
| Pantoprazole Sodium | 29 | 19 |
| Prednisone | 29 | 27 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 23 | 23 |
| Dabigatran Etexilate Mesylatebrand: Pradaxa | 20 | 12 |
| Metoprolol Tartrate | 18 | 16 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-27
- Last updated
- 2021-11-29
- Certified
- 2021-11-29
Frequently asked questions
- What is Frank Marquez's NPI number?
- Frank Marquez's National Provider Identifier (NPI) is 1922291582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frank Marquez's specialty?
- Frank Marquez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frank Marquez located?
- Frank Marquez's practice location on file with NPPES is 14445 Olive View Dr Rm 2b182, Sylmar, CA 91342-1437.
- What is Frank Marquez's phone number?
- The practice phone number listed in the NPPES registry for Frank Marquez is (818) 364-3205.
- Does Frank Marquez accept Medicare?
- Frank Marquez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frank Marquez's NPI active?
- Yes — Frank Marquez's NPI (1922291582) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.