Aparna Mahajan, MBBS
NPI 1083803480 · Clinical Pathology/Laboratory Medicine Physician · Madison, WI
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aparna Mahajan, MBBS is a Clinical Pathology/Laboratory Medicine Physician provider in Madison, WI (NPI 1083803480).
Provider details
- NPI number
- 1083803480
- Entity type
- Individual
- Primary specialty
- Clinical Pathology/Laboratory Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MBBS
- Sex
- Female
- Sole proprietor
- No
- License
- 61113 (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
18 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
1,052 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 272 | $35 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 211 | $26 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 126 | $76 |
| Microscopic Genetic Analysis of Tumor, Manual88360 | 117 | $39 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 99 | $65 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 63 | $32 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-22
- Last updated
- 2021-01-15
- Certified
- 2021-01-15
Frequently asked questions
- What is Aparna Mahajan's NPI number?
- Aparna Mahajan's National Provider Identifier (NPI) is 1083803480, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aparna Mahajan's specialty?
- Aparna Mahajan is listed in the NPPES registry with a primary specialty of Clinical Pathology/Laboratory Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Aparna Mahajan located?
- Aparna Mahajan's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-0001.
- What is Aparna Mahajan's phone number?
- The practice phone number listed in the NPPES registry for Aparna Mahajan is (608) 263-3663.
- Does Aparna Mahajan accept Medicare?
- Aparna Mahajan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aparna Mahajan's NPI active?
- Yes — Aparna Mahajan's NPI (1083803480) is active in the NPPES registry as of the last update on 2021-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.