Nilay Kumar, MD
NPI 1578792982 · Hospitalist Physician · Madison, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nilay Kumar, MD is a Hospitalist Physician provider in Madison, WI (NPI 1578792982).
Provider details
- NPI number
- 1578792982
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
400 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 274 | $73 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 41 | $106 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 28 | $110 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 25 | $161 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 17 | $75 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-07-07
- Last updated
- 2021-01-25
- Certified
- 2021-01-25
Frequently asked questions
- What is Nilay Kumar's NPI number?
- Nilay Kumar's National Provider Identifier (NPI) is 1578792982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nilay Kumar's specialty?
- Nilay Kumar is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Nilay Kumar located?
- Nilay Kumar's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-5066.
- What is Nilay Kumar's phone number?
- The practice phone number listed in the NPPES registry for Nilay Kumar is (608) 263-6400.
- Does Nilay Kumar accept Medicare?
- Nilay Kumar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nilay Kumar's NPI active?
- Yes — Nilay Kumar's NPI (1578792982) is active in the NPPES registry as of the last update on 2021-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.