Gregory Johnson, MD
NPI 1578529863 · Family Medicine Physician · Kaukauna, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Johnson, MD is a Family Medicine Physician provider in Kaukauna, WI (NPI 1578529863).
Provider details
- NPI number
- 1578529863
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0028536 (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 tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 25 | 21 |
| Warfarin Sodium | 17 | — |
| Lisinopril | 16 | 15 |
| Levothyroxine Sodium | 15 | — |
| Metoprolol Succinate | 14 | — |
| Rosuvastatin Calcium | 14 | 11 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-25
- Last updated
- 2010-06-11
Frequently asked questions
- What is Gregory Johnson's NPI number?
- Gregory Johnson's National Provider Identifier (NPI) is 1578529863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Johnson's specialty?
- Gregory Johnson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Johnson located?
- Gregory Johnson's practice location on file with NPPES is 305 East 12th Street, Kaukauna, WI 54130.
- What is Gregory Johnson's phone number?
- The practice phone number listed in the NPPES registry for Gregory Johnson is (920) 766-4656.
- Does Gregory Johnson accept Medicare?
- Gregory Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Johnson's NPI active?
- Yes — Gregory Johnson's NPI (1578529863) is active in the NPPES registry as of the last update on 2010-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.