Quick answers
- Which hospitals does Denise C. Ryan work at?
- Medicare's official clinician data lists Denise C. Ryan at 2 hospitals: HCA Houston Healthcare Northwest and Houston Methodist Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Denise C. Ryan see patients?
- Medicare's clinician data lists 4 practice locations, including Houston, TX and Cypress, TX. Call before your visit to confirm the address.
- What is Denise C. Ryan's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Denise C. Ryan accept Medicare assignment?
- Yes. Medicare's clinician data says Denise C. Ryan 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 Denise C. Ryan?
- (281) 558-3444, as listed in official Medicare / NPI Registry data.
- What is Denise C. Ryan's NPI number?
- 1144772138. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Denise C. Ryan works
Medicare's Facility Affiliation Data lists Denise C. Ryan 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 NorthwestHouston, TX · Acute Care Hospital · CCN 450638
- Houston Methodist HospitalHouston, TX · Acute Care Hospital · CCN 450358
Practice locations
Addresses where Denise C. Ryan is enrolled with Medicare (CMS data updated 2026-10-02).
- 12141 Richmond AveHouston, TX 77082 (281) 558‑3444
- 21214 Northwest Fwy, HCA Houston N CypressCypress, TX 77429 (832) 912‑3500
- 6565 Fannin StHouston, TX 77030 (713) 790‑3311
- 710 Cypress Creek PkwyHouston, TX 77090 (281) 440‑1000
Group practices
Medicare enrollment lists Denise C. Ryan as a member of these groups (CMS data updated 2026-10-02).
- Usacs Integrated Acute Care Services of Texas, PLLC387 clinicians in the group
- Hospital Medicine Services of TX, PLLC378 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144772138 |
| 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