Ana Markelz, MD
NPI 1427249259 · Infectious Disease Physician · Fort Sam Houston, TX
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ana Markelz, MD is a Infectious Disease Physician provider in Fort Sam Houston, TX (NPI 1427249259).
Provider details
- NPI number
- 1427249259
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 0101242988 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2007-08-07
- Last updated
- 2012-07-06
Frequently asked questions
- What is Ana Markelz's NPI number?
- Ana Markelz's National Provider Identifier (NPI) is 1427249259, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ana Markelz's specialty?
- Ana Markelz is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ana Markelz located?
- Ana Markelz's practice location on file with NPPES is 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234-4501.
- What is Ana Markelz's phone number?
- The practice phone number listed in the NPPES registry for Ana Markelz is (210) 916-5554.
- Does Ana Markelz accept Medicare?
- Ana Markelz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ana Markelz's NPI active?
- Yes — Ana Markelz's NPI (1427249259) is active in the NPPES registry as of the last update on 2012-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.