Uma Thirumakizhmaran, M.D.
NPI 1639144116 · Internal Medicine Physician · Waukesha, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Uma Thirumakizhmaran, M.D. is a Internal Medicine Physician provider in Waukesha, WI (NPI 1639144116).
Provider details
- NPI number
- 1639144116
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 30434 (WI)
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
20 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
1,652 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) |
|---|---|---|
| Anticoagulant Management of Patient Taking Warfarin93793 | 535 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 378 | $121 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 225 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 170 | $86 |
| Blood Test, Clotting Time85610 | 69 | $4 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 105 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 584 | 152 |
| Atorvastatin Calcium | 527 | 143 |
| Rosuvastatin Calcium | 487 | 142 |
| Amlodipine Besylate | 433 | 109 |
| Simvastatin | 408 | 101 |
| Losartan Potassium | 328 | 94 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-20
- Last updated
- 2012-04-13
Frequently asked questions
- What is Uma Thirumakizhmaran's NPI number?
- Uma Thirumakizhmaran's National Provider Identifier (NPI) is 1639144116, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Uma Thirumakizhmaran's specialty?
- Uma Thirumakizhmaran is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Uma Thirumakizhmaran located?
- Uma Thirumakizhmaran's practice location on file with NPPES is N14w23900 Stone Ridge Dr, Waukesha, WI 53188-1135.
- What is Uma Thirumakizhmaran's phone number?
- The practice phone number listed in the NPPES registry for Uma Thirumakizhmaran is (262) 549-3030.
- Does Uma Thirumakizhmaran accept Medicare?
- Uma Thirumakizhmaran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Uma Thirumakizhmaran's NPI active?
- Yes — Uma Thirumakizhmaran's NPI (1639144116) is active in the NPPES registry as of the last update on 2012-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.