Alexandra Ernst, MD, MPH
NPI 1144845900 · Orthopaedic Foot and Ankle Surgery Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Ernst, MD, MPH is a Orthopaedic Foot and Ankle Surgery Physician provider in Sacramento, CA (NPI 1144845900).
Provider details
- NPI number
- 1144845900
- Entity type
- Individual
- Primary specialty
- Orthopaedic Foot and Ankle Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Female
- Sole proprietor
- No
- License
- A204267 (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
6 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
- 2020-06-08
- Last updated
- 2025-10-12
- Certified
- 2025-10-12
Frequently asked questions
- What is Alexandra Ernst's NPI number?
- Alexandra Ernst's National Provider Identifier (NPI) is 1144845900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Ernst's specialty?
- Alexandra Ernst is listed in the NPPES registry with a primary specialty of Orthopaedic Foot and Ankle Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Alexandra Ernst located?
- Alexandra Ernst's practice location on file with NPPES is 3301 C St Ste 1600, Sacramento, CA 95816-3384.
- What is Alexandra Ernst's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Ernst is (916) 734-2700.
- Does Alexandra Ernst accept Medicare?
- Alexandra Ernst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Ernst's NPI active?
- Yes — Alexandra Ernst's NPI (1144845900) is active in the NPPES registry as of the last update on 2025-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.