Kevin Gregg
NPI 1013105220 · Infectious Disease Physician · Madison, WI
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kevin Gregg is a Infectious Disease Physician provider in Madison, WI (NPI 1013105220).
Provider details
- NPI number
- 1013105220
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 036.117546 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
262 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 | 66 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 52 | $116 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 43 | $98 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 32 | $170 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 26 | $132 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
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) |
|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 67 |
| Elviteg/Cob/Emtri/Tenof Alafenbrand: Genvoya | 26 |
| Abacavir/Dolutegravir/Lamivudibrand: Triumeq | 23 |
| Ertapenem Sodiumbrand: Ertapenem | 23 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 16 |
| Cephalexin | 15 |
| Emtricitabine/Tenofov Alafenambrand: Descovy | 13 |
| Fosfomycin Tromethamine | 13 |
| Dolutegravir Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-12
- Last updated
- 2026-05-28
- Certified
- 2026-05-28
Frequently asked questions
- What is Kevin Gregg's NPI number?
- Kevin Gregg's National Provider Identifier (NPI) is 1013105220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kevin Gregg's specialty?
- Kevin Gregg is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Kevin Gregg located?
- Kevin Gregg's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-0001.
- What is Kevin Gregg's phone number?
- The practice phone number listed in the NPPES registry for Kevin Gregg is (608) 263-0946.
- Does Kevin Gregg accept Medicare?
- Kevin Gregg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kevin Gregg's NPI active?
- Yes — Kevin Gregg's NPI (1013105220) is active in the NPPES registry as of the last update on 2026-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.