Timothy L. Overlock, M.D.
Specialist · Texarkana, TX
Timothy L. Overlock, M.D. is a specialist with a practice address in Texarkana, Texas, and NPI 1194722173, issued on Jul 5, 2005. Check the license (Texas K3372, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Timothy L. Overlock
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- K3372 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1002 Texas Blvd, Texarkana, TX 75501
- Phone
- (903) 794-3701
- Enumerated
- Jul 5, 2005
- Record last updated
- Mar 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (903) 794-3518
- Medicare enrollment
- Enrolled (PECOS I20040819000657); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,716 in Texas → Look up another NPI →
Also registered at 1002 Texas Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Breaunna Hubbard, LMSWSocial Worker1801714043
Verify Timothy L. Overlock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license K3372Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average specialist in 2024
5,300 Medicare Part D claims for 315 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 210 claims were for opioids.
Most prescribed
- Amlodipine Besylate355 claims
- Atorvastatin Calcium278 claims
- Rosuvastatin Calcium200 claims
- Potassium Chloride174 claims
- Levothyroxine Sodium172 claims
- Metoprolol Succinate146 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: $412.30
23 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Timothy L. Overlock among 1,716 specialist records in Texas
Timothy L. Overlock, M.D. is one of 1,716 specialist records with a practice address in Texas. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 83% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileYes · 18% of these records are
- Graduated1991 · median 1989 among the 310 with a school on file
- Record last updated2010 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Texas
There are 1,716 specialist records in Texas.
All 1,716 in Texas → Every provider in Texarkana → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- David Carlisle, MDTexarkana, TX 755011649275496
- Roger House, MDTexarkana, TX 755011871546051
- Alvin Payne, M.D.Texarkana, TX 755011427056894
- Kenneth West, MDTexarkana, TX 755011508864125
- Laura Balmain, MDTexarkana, TX 755031386642692
- John Cozart, MDTexarkana, TX 755031952309262
- Wendy Gordon, LSATexarkana, TX 755031528079068
- John Gregory, M.D.Texarkana, TX 755031285621664
Common questions
What is Timothy L. Overlock, M.D.'s NPI number?
Timothy L. Overlock, M.D.'s National Provider Identifier (NPI) is 1194722173, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Timothy L. Overlock, M.D. located?
The NPPES record lists a practice address at 1002 Texas Blvd, Texarkana, TX, 75501. Phone: (903) 794-3701. Providers update this record themselves, so call before visiting.
How can I verify Timothy L. Overlock, M.D.'s license?
NPPES lists Texas license number K3372, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Timothy L. Overlock, M.D. prescribe under Medicare Part D?
In 2024, Timothy L. Overlock, M.D. had 5,300 Medicare Part D claims for 315 beneficiaries; the average among specialist prescribers was 1,380. 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.