Timothy Overlock, M.D.
NPI 1194722173 · Specialist · Texarkana, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Overlock, M.D. is a Specialist provider in Texarkana, TX (NPI 1194722173).
Provider details
- NPI number
- 1194722173
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- K3372 (TX)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
751 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 382 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 269 | $87 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 54 | $123 |
| Administration of Influenza Virus VaccineG0008 | 19 | $29 |
| Transitional Care Management Services for Problem of High Complexity99496 | 14 | $241 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 355 | 101 |
| Atorvastatin Calcium | 278 | 87 |
| Rosuvastatin Calcium | 200 | 62 |
| Potassium Chloride | 174 | 58 |
| Levothyroxine Sodium | 172 | 51 |
| Metoprolol Succinate | 146 | 45 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$412 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-05
- Last updated
- 2010-03-01
Frequently asked questions
- What is Timothy Overlock's NPI number?
- Timothy Overlock's National Provider Identifier (NPI) is 1194722173, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Overlock's specialty?
- Timothy Overlock is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Timothy Overlock located?
- Timothy Overlock's practice location on file with NPPES is 1002 Texas Blvd, Texarkana, TX 75501-5107.
- What is Timothy Overlock's phone number?
- The practice phone number listed in the NPPES registry for Timothy Overlock is (903) 794-3701.
- Does Timothy Overlock accept Medicare?
- Timothy Overlock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Overlock's NPI active?
- Yes — Timothy Overlock's NPI (1194722173) is active in the NPPES registry as of the last update on 2010-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.