Elsa Hartwick, M.D.
NPI 1558375022 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elsa Hartwick, M.D. is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1558375022).
Provider details
- NPI number
- 1558375022
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A065743 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 · 117 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 726 | 237 |
| Amlodipine Besylate | 435 | 151 |
| Metformin Hcl | 425 | 126 |
| Losartan Potassium | 295 | 99 |
| Lisinopril | 283 | 88 |
| Empagliflozinbrand: Jardiance | 279 | 71 |
Practice location
Mailing address
Additional practice locations (2)
- 1414 S Grand AveSuite 456Los Angeles, CA 90015-3067Phone: (213) 745-6047Fax: (213) 748-9715
- 1414 S Grand Ave Ste 200Los Angeles, CA 90015-3072Phone: (213) 743-9000Fax: (213) 743-9001
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2025-09-12
- Certified
- 2023-12-08
Frequently asked questions
- What is Elsa Hartwick's NPI number?
- Elsa Hartwick's National Provider Identifier (NPI) is 1558375022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elsa Hartwick's specialty?
- Elsa Hartwick is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Elsa Hartwick located?
- Elsa Hartwick's practice location on file with NPPES is 1414 S Grand Ave Ste 380, Los Angeles, CA 90015-3072.
- What is Elsa Hartwick's phone number?
- The practice phone number listed in the NPPES registry for Elsa Hartwick is (213) 222-1300.
- Does Elsa Hartwick accept Medicare?
- Elsa Hartwick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elsa Hartwick's NPI active?
- Yes — Elsa Hartwick's NPI (1558375022) is active in the NPPES registry as of the last update on 2025-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.