Anna Teresa Tsay, ANP-BC
NPI 1003058348 · Adult Health Nurse Practitioner · Los Angeles, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Teresa Tsay, ANP-BC is a Adult Health Nurse Practitioner provider in Los Angeles, CA (NPI 1003058348).
Provider details
- NPI number
- 1003058348
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP-BC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 18500 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2009-04-01
- Last updated
- 2021-10-07
- Certified
- 2021-10-07
Frequently asked questions
- What is Anna Teresa Tsay's NPI number?
- Anna Teresa Tsay's National Provider Identifier (NPI) is 1003058348, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Teresa Tsay's specialty?
- Anna Teresa Tsay is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Anna Teresa Tsay located?
- Anna Teresa Tsay's practice location on file with NPPES is 3913 York Blvd, Los Angeles, CA 90065-3718.
- What is Anna Teresa Tsay's phone number?
- The practice phone number listed in the NPPES registry for Anna Teresa Tsay is (323) 532-1900.
- Does Anna Teresa Tsay accept Medicare?
- Anna Teresa Tsay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Teresa Tsay's NPI active?
- Yes — Anna Teresa Tsay's NPI (1003058348) is active in the NPPES registry as of the last update on 2021-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.