Thomas Williamson, MD
NPI 1457377525 · Internal Medicine Physician · Warner Robins, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Williamson, MD is a Internal Medicine Physician provider in Warner Robins, GA (NPI 1457377525).
Provider details
- NPI number
- 1457377525
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 042144 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,418 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 425 | $16 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426 | 224 | $35 |
| Detection Test By Immunoassay With Direct Visual Observation for Streptococcus, Group a (strep)87880 | 216 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 189 | $83 |
| Automated Urinalysis Test81003 | 139 | $2 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 112 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 194 | 36 |
| Methylprednisolone | 130 | 67 |
| Levothyroxine Sodium | 117 | 33 |
| Alprazolam | 117 | 19 |
| Gabapentin | 112 | 27 |
| Atorvastatin Calcium | 105 | 34 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-14
- Last updated
- 2009-02-17
Frequently asked questions
- What is Thomas Williamson's NPI number?
- Thomas Williamson's National Provider Identifier (NPI) is 1457377525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Williamson's specialty?
- Thomas Williamson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Williamson located?
- Thomas Williamson's practice location on file with NPPES is 310 Margie Dr, Warner Robins, GA 31088-7817.
- What is Thomas Williamson's phone number?
- The practice phone number listed in the NPPES registry for Thomas Williamson is (478) 333-3278.
- Does Thomas Williamson accept Medicare?
- Thomas Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Williamson's NPI active?
- Yes — Thomas Williamson's NPI (1457377525) is active in the NPPES registry as of the last update on 2009-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.