Rachna Unnithan, MD
NPI 1598115255 · Endocrinology, Diabetes & Metabolism Physician · Madison, WI
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rachna Unnithan, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Madison, WI (NPI 1598115255).
Provider details
- NPI number
- 1598115255
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 68914-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 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
817 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 234 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 198 | $119 |
| 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 | 117 | $15 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 94 | $203 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 58 | $83 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 223 | 60 |
| Semaglutidebrand: Ozempic | 103 | 17 |
| Alendronate Sodium | 99 | 30 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 94 | 24 |
| Methimazole | 57 | 18 |
| Tirzepatidebrand: Mounjaro | 56 | 11 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-14
- Last updated
- 2022-01-10
- Certified
- 2022-01-10
Frequently asked questions
- What is Rachna Unnithan's NPI number?
- Rachna Unnithan's National Provider Identifier (NPI) is 1598115255, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachna Unnithan's specialty?
- Rachna Unnithan is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Rachna Unnithan located?
- Rachna Unnithan's practice location on file with NPPES is 1821 S Stoughton Rd, Madison, WI 53716-2257.
- What is Rachna Unnithan's phone number?
- The practice phone number listed in the NPPES registry for Rachna Unnithan is (608) 260-6000.
- Does Rachna Unnithan accept Medicare?
- Rachna Unnithan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rachna Unnithan's NPI active?
- Yes — Rachna Unnithan's NPI (1598115255) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.