Kathleen Anne Clark, M.D.
Internal Medicine Physician · Amarillo, TX
Kathleen Anne Clark, M.D. is an internal medicine physician with a practice address in Amarillo, Texas, and NPI 1518103886, issued on Dec 16, 2008. Check the license (Texas 42540, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathleen Anne Clark
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 42540 TX
251181-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 5701 Time Square Blvd Ste 220, Amarillo, TX 79119
- Phone
- (806) 350-7311
- Enumerated
- Dec 16, 2008
- Record last updated
- Mar 28, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (806) 350-7361
- Medicaid IDs
- 200232280 A OK
83982876 NM
199457601 TX - Medicare enrollment
- Enrolled (PECOS I20090223000077); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Verify Kathleen Anne Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license 42540Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
529 Medicare Part D claims for 154 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 53 claims were for opioids.
Most prescribed
- Tramadol Hcl53 claims
- Levothyroxine Sodium37 claims
- Losartan Potassium25 claims
- Escitalopram Oxalate18 claims
- Alprazolam17 claims
- Ciprofloxacin Hcl13 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.
The MIPS final score for 2023 (Medicare payment program): 39.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,307.35
60 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
Bills Medicare through one group practice
- Amarillo Medical Specialists,llpAmarillo, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathleen Anne Clark among 9,175 internal medicine physician records in Texas
Kathleen Anne Clark, 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 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2002 · median 2004 among the 6,088 with a school on file
- Record last updated2018 · 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).
82 internal medicine physician records list a practice address in Amarillo
They are 82 of the 3,934 NPPES records with a practice address in Amarillo, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Amarillo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Stevener, M.D.Amarillo, TX 791191609193721
- Jimmie Appel, M.D.Amarillo, TX 791211770683336
- Alexander Iskrenko, M.D., PH.D.Amarillo, TX 791211972798411
- Alan Keister, M.D.Amarillo, TX 791241255373635
- Anjali Kherdekar, MDAmarillo, TX 791241013124932
- Kaylee Shepherd, M.D.Amarillo, TX 791241710321831
- Ryan Smithee, M.D.Amarillo, TX 791241861924623
- Joanna Wilson, DOAmarillo, TX 791241942238738
Common questions
What is Kathleen Anne Clark, M.D.'s NPI number?
Kathleen Anne Clark, M.D.'s National Provider Identifier (NPI) is 1518103886, issued on Dec 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Anne Clark, M.D. located?
The NPPES record lists a practice address at 5701 Time Square Blvd Ste 220, Amarillo, TX, 79119. Phone: (806) 350-7311. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Anne Clark, M.D.'s license?
NPPES lists Texas license number 42540, 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 Kathleen Anne Clark, M.D. prescribe under Medicare Part D?
In 2024, Kathleen Anne Clark, M.D. had 529 Medicare Part D claims for 154 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Kathleen Anne Clark, M.D.'s MIPS final score?
The 2023 MIPS final score is 39.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.