Alec Jessen
NPI 1043912165 · Emergency Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alec Jessen is a Emergency Medicine Physician provider in Los Angeles, CA (NPI 1043912165).
Provider details
- NPI number
- 1043912165
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 15536 (CA)
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
3 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-03-21
- Last updated
- 2026-06-02
- Certified
- 2026-06-02
Frequently asked questions
- What is Alec Jessen's NPI number?
- Alec Jessen's National Provider Identifier (NPI) is 1043912165, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alec Jessen's specialty?
- Alec Jessen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alec Jessen located?
- Alec Jessen's practice location on file with NPPES is 2051 Marengo St, Los Angeles, CA 90033-1352.
- What is Alec Jessen's phone number?
- The practice phone number listed in the NPPES registry for Alec Jessen is (323) 409-1945.
- Does Alec Jessen accept Medicare?
- Alec Jessen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alec Jessen's NPI active?
- Yes — Alec Jessen's NPI (1043912165) is active in the NPPES registry as of the last update on 2026-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.