Quick answers
- Where does Mary D. Altmeyer see patients?
- Medicare's clinician data lists 2 practice locations, including Frederickburg, TX and San Antonio, TX. Call before your visit to confirm the address.
- What is Mary D. Altmeyer's specialty?
- Medicare lists Dermatology as the primary specialty, and also Pathology.
- Does Mary D. Altmeyer accept Medicare assignment?
- Yes. Medicare's clinician data says Mary D. Altmeyer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mary D. Altmeyer?
- (830) 990-1555, as listed in official Medicare / NPI Registry data.
- What is Mary D. Altmeyer's NPI number?
- 1144493024. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Mary D. Altmeyer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1020 S State Hwy 16Frederickburg, TX 78624 (830) 990‑1555
- 9720 Datapoint DrSan Antonio, TX 78229 (210) 892‑3700
Group practices
Medicare enrollment lists Mary D. Altmeyer as a member of this group (CMS data updated 2026-10-02).
- Pathology Associates of San Antonio, L.L.P.24 clinicians in the group
Specialties
- Dermatologyprimary
- Pathologyalso
Other dermatologists in Texas
Clinicians with the same Medicare primary specialty in Texas — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tulane University School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144493024 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians