Sunil Kumar, M.D.
NPI 1588942338 · Hospitalist Physician · Fond Du Lac, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sunil Kumar, M.D. is a Hospitalist Physician provider in Fond Du Lac, WI (NPI 1588942338).
Provider details
- NPI number
- 1588942338
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 62147 (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
14 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
425 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 | 185 | $73 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 90 | $106 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 72 | $110 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 33 | $161 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 28 | $118 |
| Advance Care Planning, First 30 Minutes99497 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 34 | 12 |
| Apixabanbrand: Eliquis | 34 | — |
| Atorvastatin Calcium | 32 | — |
| Cefdinir | 22 | 22 |
| Metoprolol Tartrate | 20 | — |
| Methylprednisolone | 18 | 18 |
| Levothyroxine Sodium | 16 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-07-28
- Last updated
- 2023-08-08
- Certified
- 2023-07-31
Frequently asked questions
- What is Sunil Kumar's NPI number?
- Sunil Kumar's National Provider Identifier (NPI) is 1588942338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sunil Kumar's specialty?
- Sunil Kumar is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Sunil Kumar located?
- Sunil Kumar's practice location on file with NPPES is 430 E Division St, Fond Du Lac, WI 54935-4560.
- What is Sunil Kumar's phone number?
- The practice phone number listed in the NPPES registry for Sunil Kumar is (920) 926-4591.
- Does Sunil Kumar accept Medicare?
- Sunil Kumar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sunil Kumar's NPI active?
- Yes — Sunil Kumar's NPI (1588942338) is active in the NPPES registry as of the last update on 2023-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.