Quick answers
- Does Karen X. Thampoe accept Medicare assignment?
- Yes. Medicare's clinician data says Karen X. Thampoe 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 Karen X. Thampoe see?
- In 2024, CMS data shows 96 Original Medicare patients and 10,124 services for Karen X. Thampoe. This counts Original Medicare only and measures volume, not quality.
- What is Karen X. Thampoe's NPI number?
- 1750390092. 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 Karen X. Thampoe, 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 | 96 |
|---|---|
| Services billed to Medicare | 10,124 |
| Different services or procedures | 86 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Detection test by nucleic acid for organism, amplified probe technique (87798)3,163 services
- Detection test for candida species (yeast), amplified probe technique (87481)651 services
- Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes (99422)496 services
- Detection test by nucleic acid for vancomycin resistance strep (vre), amplified probe technique (87500)266 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)257 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 blood pressure75%
- High cholesterol72%
- Diabetes48%
- Arthritis39%
- Anxiety38%
- Depression32%
Hospitals where Karen X. Thampoe works
Medicare's Facility Affiliation Data lists Karen X. Thampoe 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
Practice locations
Addresses where Karen X. Thampoe is enrolled with Medicare (CMS data updated October 2, 2026).
- 21238 Kingsland BlvdKaty, TX 77450 (832) 321‑4962
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Katy
Clinicians with the same Medicare primary specialty in Katy, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750390092 |
| 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