Quick answers
- Where does William P. Kalchoff see patients?
- Medicare's clinician data lists 3 practice locations, including Humble, TX, Katy, TX and Houston, TX. Call before your visit to confirm the address.
- What is William P. Kalchoff's specialty?
- Medicare lists Vascular Surgery as the primary specialty.
- Does William P. Kalchoff accept Medicare assignment?
- Yes. Medicare's clinician data says William P. Kalchoff 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 William P. Kalchoff?
- (832) 644-8930, as listed in official Medicare / NPI Registry data.
- What is William P. Kalchoff's NPI number?
- 1962471227. 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 William P. Kalchoff is enrolled with Medicare (CMS data updated 2026-10-02).
- 18835 McKay DrHumble, TX 77338 (832) 644‑8930
- 450 S Mason Rd, Suite 100 BKaty, TX 77450 (713) 533‑0535
- 8313 Southwest Fwy, Suite 201Houston, TX 77074 (713) 533‑0535
Group practices
Medicare enrollment lists William P. Kalchoff as a member of this group (CMS data updated 2026-10-02).
- Rajiv Agarwal MD PA20 clinicians in the group
Specialties
- Vascular Surgeryprimary
Other vascular surgeons in Humble
Clinicians with the same Medicare primary specialty in Humble, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 1972 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962471227 |
| 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