NPPES file of Aug 9, 2026

Kelsey Carnahan, MD

Internal Medicine Physician · Houston, TX

Kelsey Carnahan, MD is an internal medicine physician with a practice address in Houston, Texas, and NPI 1083140578, issued on May 3, 2017. Check the license (Texas T8779, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083140578
Name
Kelsey Carnahan
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
T8779 TX
Self-reported in NPPES; status is on the state search
Practice location
12121 Westheimer RD Ste 205, Houston, TX 77077
Phone
(713) 773-0803
Enumerated
May 3, 2017
Record last updated
Aug 15, 2022
Medicare enrollment
Enrolled (PECOS I20220813000712); accepts Medicare assignment
Medical or professional school
University Of Louisville School Of Medicine, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 12121 Westheimer RD Ste 205

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Annapoorani Arunachalam, MDPediatrics Physician1275674178
  2. Matti Korhonen, M.D., PH.D.Obstetrics & Gynecology Physician1750382826
  3. Nichole Ogojiaku, MDObstetrics & Gynecology Physician1275094393
  4. Jorge Orezzoli, MD, FACOGObstetrics & Gynecology Physician1609026699
  5. Khoa Pham, M.D.Family Medicine Physician1265843668

Verify Kelsey Carnahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license T8779
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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82% fewer Medicare Part D claims than the average internal medicine physician in 2024

578 Medicare Part D claims for 55 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Kelsey Carnahan578
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium39 claims
  2. Losartan Potassium32 claims
  3. Meloxicam26 claims
  4. Omeprazole22 claims
  5. Metformin Hcl20 claims
  6. Glipizide19 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: $316.56

17 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. 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.

  1. Kelsey Carnahan$316.56
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Asian American Health Coalition OF The Greater Houston AreaHouston, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kelsey Carnahan among 9,175 internal medicine physician records in Texas

Kelsey Carnahan, MD 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 2017, is newer than 77% of them.

  • NPI issued2017 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2018 · median 2004 among the 6,088 with a school on file
  • Record last updated2022 · 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).

1,488 internal medicine physician records list a practice address in Houston

They are 1,488 of the 61,221 NPPES records with a practice address in Houston, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nidhi Jhaver, M.D.Houston, TX 770771033300850
  2. Brian Kiss, M.D.Houston, TX 770771801949557
  3. Ucheoma Nwaogwugwu, MDHouston, TX 770771720234016
  4. Raina Patel, MDHouston, TX 770771144224544
  5. Shiraz PiraliHouston, TX 770771366464034
  6. Melvin Russell, D.O.Houston, TX 770771538239546
  7. Judi Shaw-Rice, MD, FACP, MMM, CPEHouston, TX 770771437253093
  8. An Tang, M.D.Houston, TX 770771841357589

Common questions

What is Kelsey Carnahan, MD's NPI number?

Kelsey Carnahan, MD's National Provider Identifier (NPI) is 1083140578, issued on May 3, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Kelsey Carnahan, MD located?

The NPPES record lists a practice address at 12121 Westheimer RD Ste 205, Houston, TX, 77077. Phone: (713) 773-0803. Providers update this record themselves, so call before visiting.

How can I verify Kelsey Carnahan, MD's license?

NPPES lists Texas license number T8779, 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 Kelsey Carnahan, MD prescribe under Medicare Part D?

In 2024, Kelsey Carnahan, MD had 578 Medicare Part D claims for 55 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.