Thomas Williamson, M.D.
NPI 1497829139 · Family Medicine Physician · Eleele, HI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Williamson, M.D. is a Family Medicine Physician provider in Eleele, HI (NPI 1497829139).
Provider details
- NPI number
- 1497829139
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD-8835 (HI)
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
741 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 333 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 239 | $90 |
| Administration of Influenza Virus VaccineG0008 | 72 | $32 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 64 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 19 | $14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 98 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 559 | 176 |
| Atorvastatin Calcium | 465 | 149 |
| Amlodipine Besylate | 424 | 141 |
| Metoprolol Succinate | 235 | 71 |
| Empagliflozinbrand: Jardiance | 203 | 61 |
| Lisinopril | 178 | 52 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-17
- Last updated
- 2012-03-27
Frequently asked questions
- What is Thomas Williamson's NPI number?
- Thomas Williamson's National Provider Identifier (NPI) is 1497829139, 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 Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Williamson located?
- Thomas Williamson's practice location on file with NPPES is 4382 Waialo Rd, Eleele, HI 96705.
- What is Thomas Williamson's phone number?
- The practice phone number listed in the NPPES registry for Thomas Williamson is (808) 335-0499.
- 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 (1497829139) is active in the NPPES registry as of the last update on 2012-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.