Gregory Johnson
NPI 1568080505 · Physician Assistant · Oshkosh, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Johnson is a Physician Assistant provider in Oshkosh, WI (NPI 1568080505).
Provider details
- NPI number
- 1568080505
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 7020 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 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
215 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 69 | $134 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 62 | $13 |
| Injection of Trigger Points, 3 Or More Muscles20553 | 35 | $48 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $101 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pregabalin | 296 | 72 |
| Gabapentin | 271 | 59 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 235 | 56 |
| Tizanidine Hcl | 183 | 52 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 126 | 24 |
| Duloxetine Hcl | 108 | 33 |
| Tramadol Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-07-07
- Last updated
- 2024-04-03
- Certified
- 2024-04-03
Frequently asked questions
- What is Gregory Johnson's NPI number?
- Gregory Johnson's National Provider Identifier (NPI) is 1568080505, 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 Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gregory Johnson located?
- Gregory Johnson's practice location on file with NPPES is 700 N Westhaven Dr, Oshkosh, WI 54904-6947.
- What is Gregory Johnson's phone number?
- The practice phone number listed in the NPPES registry for Gregory Johnson is (920) 456-4030.
- 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 (1568080505) is active in the NPPES registry as of the last update on 2024-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.