Quick answers
- Does Catherine C. Corovessis accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine C. Corovessis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Catherine C. Corovessis see?
- In 2024, CMS data shows 48 Original Medicare patients and 161 services for Catherine C. Corovessis. This counts Original Medicare only and measures volume, not quality.
- What is Catherine C. Corovessis's NPI number?
- 1487688891. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Catherine C. Corovessis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 48 |
|---|---|
| Services billed to Medicare | 161 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Assessment of emotional or behavioral problems (96127)42 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)36 services
- Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)25 services
- Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)12 services
- Pelvic exam (99459)11 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure58%
- Arthritis46%
- Osteoporosis27%
- Ischemic heart disease25%
Hospitals where Catherine C. Corovessis works
Medicare's Facility Affiliation Data lists Catherine C. Corovessis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Houston Methodist West HospitalHouston, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · CCN 670077
- Memorial Hermann Katy HospitalKaty, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450847
Practice locations
Addresses where Catherine C. Corovessis is enrolled with Medicare (CMS data updated October 2, 2026).
- 17510 W Grand Pkwy SSugar Land, TX 77479
- 21700 Kingsland Blvd, Suite 203Katy, TX 77450 (281) 398‑2140
- 7900 Fannin St, Suite 4000Houston, TX 77054 (713) 512‑7500
Group practices
Medicare enrollment lists Catherine C. Corovessis as a member of this group (CMS data updated October 2, 2026).
- Privia Medical Group Gulf Coast PLLC534 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Sugar Land
Clinicians with the same Medicare primary specialty in Sugar Land, TX — not a recommendation.
Other clinicians in Privia Medical Group Gulf Coast PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At San Antonio |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487688891 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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