Gregory Louis Johnson
Physician Assistant · Oshkosh, WI
Gregory Louis Johnson is a physician assistant with a practice address in Oshkosh, Wisconsin, and NPI 1568080505, issued on Jul 7, 2020. Check the license (Wisconsin 7020, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Louis Johnson
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 7020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 700 N Westhaven Dr, Oshkosh, WI 54904
- Phone
- (920) 456-4030
- Enumerated
- Jul 7, 2020
- Record last updated
- Apr 3, 2024
- Medicaid ID
- 100213489 WI
- Medicare enrollment
- Enrolled (PECOS I20221006003235); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,475 in Wisconsin → Look up another NPI →
Also registered at 700 N Westhaven Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lindsay Davel, DNP, APNPPsychiatric/Mental Health Nurse Practitioner1255686416
- Kathryn Glynn, M.D.Interventional Pain Medicine Physician1235143793
- Gayle Johnson, LPCProfessional Counselor1255698551
- Alex Kelsey, DOPsychiatry Physician1124524152
Verify Gregory Louis Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 7020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average physician assistant in 2024
1,782 Medicare Part D claims for 238 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were under 1% of claims. 493 claims were for opioids.
Most prescribed
- Pregabalin296 claims
- Gabapentin271 claims
- Hydrocodone-Acetaminophen235 claims
- Tizanidine Hcl183 claims
- Oxycodone-Acetaminophen126 claims
- Duloxetine Hcl108 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Aurora Medical Group, Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Louis Johnson among 3,475 physician assistant records in Wisconsin
Gregory Louis Johnson is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 70% of them.
- NPI issued2020 · 70% of these records are older, 24% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2022 · median 2016 among the 2,491 with a school on file
- Record last updated2024 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 physician assistant records list a practice address in Oshkosh
They are 43 of the 1,527 NPPES records with a practice address in Oshkosh, and 3,475 physician assistant records in Wisconsin.
All 3,475 in Wisconsin → Every provider in Oshkosh → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Matthew Bay, P.A.Oshkosh, WI 549041033359401
- Mark Evans, PA-COshkosh, WI 549041649205105
- Daniel Hafner, PAOshkosh, WI 549041578563946
- Marc Jennings, PA-COshkosh, WI 549041144212994
- Stephen Kennebeck, PA-COshkosh, WI 549041538169214
- Dianna Malkowski, PAOshkosh, WI 549041811194699
- Marina Mishin, PA-COshkosh, WI 549041205845351
- Sherri Olson, PAOshkosh, WI 549041609858471
Common questions
What is Gregory Louis Johnson's NPI number?
Gregory Louis Johnson's National Provider Identifier (NPI) is 1568080505, issued on Jul 7, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Louis Johnson located?
The NPPES record lists a practice address at 700 N Westhaven Dr, Oshkosh, WI, 54904. Phone: (920) 456-4030. Providers update this record themselves, so call before visiting.
How can I verify Gregory Louis Johnson's license?
NPPES lists Wisconsin license number 7020, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Louis Johnson prescribe under Medicare Part D?
In 2024, Gregory Louis Johnson had 1,782 Medicare Part D claims for 238 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.