Quick answers
- Which hospitals does Alan J. Chapman work at?
- Medicare's official clinician data lists Alan J. Chapman at 5 hospitals: HCA Houston Healthcare Kingwood, Houston Methodist Cypress Hospital, Houston Methodist Hospital, Memorial Hermann - Texas Medical Center and Memorial Hermann Memorial City Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alan J. Chapman see patients?
- Medicare's clinician data lists 1 practice location in Houston, TX. Call before your visit to confirm the address.
- What is Alan J. Chapman's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Alan J. Chapman accept Medicare assignment?
- Yes. Medicare's clinician data says Alan J. Chapman 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 Alan J. Chapman?
- (713) 467-1365, as listed in official Medicare / NPI Registry data.
- What is Alan J. Chapman's NPI number?
- 1245239177. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alan J. Chapman works
Medicare's Facility Affiliation Data lists Alan J. Chapman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- HCA Houston Healthcare KingwoodKingwood, TX · Acute Care Hospital · CCN 450775
- Houston Methodist Cypress HospitalCypress, TX · Acute Care Hospital · CCN 670342
- Houston Methodist HospitalHouston, TX · Acute Care Hospital · CCN 450358
- Memorial Hermann - Texas Medical CenterHouston, TX · Acute Care Hospital · CCN 450068
- Memorial Hermann Memorial City HospitalHouston, TX · Acute Care Hospital · CCN 450610
Practice locations
Addresses where Alan J. Chapman is enrolled with Medicare (CMS data updated 2026-10-02).
- 9055 Katy FwyHouston, TX 77024 (713) 467‑1365
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 1979 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245239177 |
| 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