Karen X. Thampoe, M.D.
Internal Medicine Physician · Katy, TX
Karen X. Thampoe, M.D. is an internal medicine physician with a practice address in Katy, Texas, and NPI 1750390092, issued on Aug 5, 2006. Check the license (Texas M0289, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karen X. Thampoe
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- M0289 TX
Self-reported in NPPES; status is on the state search - Practice location
- 21238 Kingsland Blvd, Katy, TX 77450
- Phone
- (832) 321-4962
- Enumerated
- Aug 5, 2006
- Record last updated
- Jul 2, 2024
- Fax
- (281) 606-0394
- Medicaid ID
- 171157402 TX
- Medicare enrollment
- Enrolled (PECOS I20050118000758); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 21238 Kingsland Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Jabbour, D.O.Hospitalist Physician1013303601
- Jason Lee, RN, FNP-CFamily Nurse Practitioner1366924797
Verify Karen X. Thampoe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M0289Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% more Medicare Part D claims than the average internal medicine physician in 2024
4,657 Medicare Part D claims for 311 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 283 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen172 claims
- Gabapentin137 claims
- Rosuvastatin Calcium135 claims
- Atorvastatin Calcium132 claims
- Losartan Potassium131 claims
- Methylprednisolone131 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $318.13
15 payments; by number, the most common kind was food and beverage; the largest payer was Revance Therapeutics, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Karen X. Thampoe among 9,175 internal medicine physician records in Texas
Karen X. Thampoe, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2001 · median 2004 among the 6,088 with a school on file
- Record last updated2024 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 internal medicine physician records list a practice address in Katy
They are 54 of the 5,078 NPPES records with a practice address in Katy, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Katy → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- John Adams, M.DKaty, TX 774501922006410
- Cynthia Cotton, MDKaty, TX 774501851491757
- Vijayshekar Elati, M.D.Katy, TX 774501124105937
- Harold Gottlieb, M.D.Katy, TX 774501336133081
- Anuradha Kantamani, M.D.Katy, TX 774501649244054
- Kevin Kendall, M.D.Katy, TX 774501639356819
- Azmat Khan, MDKaty, TX 774501407927486
- Syed Madni, MDKaty, TX 774501427222389
Common questions
What is Karen X. Thampoe, M.D.'s NPI number?
Karen X. Thampoe, M.D.'s National Provider Identifier (NPI) is 1750390092, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen X. Thampoe, M.D. located?
The NPPES record lists a practice address at 21238 Kingsland Blvd, Katy, TX, 77450. Phone: (832) 321-4962. Providers update this record themselves, so call before visiting.
How can I verify Karen X. Thampoe, M.D.'s license?
NPPES lists Texas license number M0289, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen X. Thampoe, M.D. prescribe under Medicare Part D?
In 2024, Karen X. Thampoe, M.D. had 4,657 Medicare Part D claims for 311 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.