Mai Ka Kostur, FNP-BC
NPI 1831904234 · Nurse Practitioner · San Antonio, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mai Ka Kostur, FNP-BC is a Nurse Practitioner provider in San Antonio, TX (NPI 1831904234).
Provider details
- NPI number
- 1831904234
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- AP1028382 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
1 yr 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
- 2025-02-11
- Last updated
- 2025-06-11
- Certified
- 2025-06-11
Frequently asked questions
- What is Mai Ka Kostur's NPI number?
- Mai Ka Kostur's National Provider Identifier (NPI) is 1831904234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mai Ka Kostur's specialty?
- Mai Ka Kostur is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mai Ka Kostur located?
- Mai Ka Kostur's practice location on file with NPPES is 3327 Research Plz Ste 414, San Antonio, TX 78235-5159.
- What is Mai Ka Kostur's phone number?
- The practice phone number listed in the NPPES registry for Mai Ka Kostur is (773) 641-8500.
- Does Mai Ka Kostur accept Medicare?
- Mai Ka Kostur is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mai Ka Kostur's NPI active?
- Yes — Mai Ka Kostur's NPI (1831904234) is active in the NPPES registry as of the last update on 2025-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.