Quick answers
- Where does Mercy A. John see patients?
- Medicare's clinician data lists 2 practice locations, including The Woodlands, TX and Houston, TX. Call before your visit to confirm the address.
- What is Mercy A. John's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mercy A. John accept Medicare assignment?
- Yes. Medicare's clinician data says Mercy A. John 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 Mercy A. John?
- (713) 798-1000, as listed in official Medicare / NPI Registry data.
- What is Mercy A. John's NPI number?
- 1770459752. 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 Mercy A. John is enrolled with Medicare (CMS data updated 2026-10-02).
- 17200 St Luke'S WayThe Woodlands, TX 77384 (713) 798‑1000
- 6720 Bertner AveHouston, TX 77030 (713) 798‑1000
Group practices
Medicare enrollment lists Mercy A. John as a member of this group (CMS data updated 2026-10-02).
- Baylor College of Medicine1,240 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in The Woodlands
Clinicians with the same Medicare primary specialty in The Woodlands, TX — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770459752 |
| 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