Quick answers
- Which hospitals does James A. Maher Jr. work at?
- Medicare's official clinician data lists James A. Maher Jr. at 2 hospitals: Memorial Hermann Katy Hospital and Townsen Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James A. Maher Jr. see patients?
- Medicare's clinician data lists 1 practice location in Houston, TX. Call before your visit to confirm the address.
- What is James A. Maher Jr.'s specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does James A. Maher Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says James A. Maher Jr. 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 James A. Maher Jr.?
- (281) 945-5190, as listed in official Medicare / NPI Registry data.
- What is James A. Maher Jr.'s NPI number?
- 1497743165. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James A. Maher Jr. works
Medicare's Facility Affiliation Data lists James A. Maher Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorial Hermann Katy HospitalKaty, TX · Acute Care Hospital · CCN 450847
- Townsen Memorial HospitalHumble, TX · Acute Care Hospital · CCN 670266
Practice locations
Addresses where James A. Maher Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 19255 Park Row, Suite 104Houston, TX 77084 (281) 945‑5190
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 1974 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497743165 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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