Joseph De La Merced, M.D.
NPI 1578907051 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph De La Merced, M.D. is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1578907051).
Provider details
- NPI number
- 1578907051
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A133310 (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
13 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefpodoxime Proxetil | 22 | 22 |
| Atorvastatin Calcium | 17 | 11 |
| Dabigatran Etexilate Mesylatebrand: Pradaxa | 15 | — |
| Amlodipine Besylate | 12 | — |
| Furosemide | 12 | — |
| Metoprolol Tartrate | 12 | — |
| Lactulose | 11 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-26
- Last updated
- 2021-12-06
Frequently asked questions
- What is Joseph De La Merced's NPI number?
- Joseph De La Merced's National Provider Identifier (NPI) is 1578907051, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph De La Merced's specialty?
- Joseph De La Merced is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph De La Merced located?
- Joseph De La Merced's practice location on file with NPPES is 4950 W Sunset Blvd Fl 6, Los Angeles, CA 90027-5822.
- What is Joseph De La Merced's phone number?
- The practice phone number listed in the NPPES registry for Joseph De La Merced is (323) 783-4516.
- Does Joseph De La Merced accept Medicare?
- Joseph De La Merced is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph De La Merced's NPI active?
- Yes — Joseph De La Merced's NPI (1578907051) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.