MR. GREGORY J JOHNSON
NPI 1477031557
Nurse Anesthetist, Certified Registered in Mount Pleasant, WI
About Mr. Gregory J Johnson NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. GREGORY J JOHNSON (NPI 1477031557) is an individual nurse anesthetist, certified registered in Mount Pleasant, Wisconsin, licensed in Florida (APRN11020093) and active in the NPI registry since August 2018. He is enrolled in Medicare PECOS, is affiliated with Mease Countryside Hospital, and maintains a secondary practice location in Boynton Beach.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mr. Gregory J Johnson is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Gregory Johnson reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mount Pleasant, WI 53405
- Reassigned Medicare billing, Wisconsin enrollment
- 162 clinicians in this Medicare group
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Anesthesia Partners Services Sc
- 100 clinicians in this Medicare group
Pensacola, FL 32503
- Reassigned Medicare billing, Florida enrollment
- 1,973 clinicians in this Medicare group
Land O Lakes, FL 34637
- Reassigned Medicare billing, Florida enrollment
- 749 clinicians in this Medicare group
Clearwater, FL 33759
- Reassigned Medicare billing, Florida enrollment
- 2,009 clinicians in this Medicare group
Jupiter, FL 33458
- Reassigned Medicare billing, Florida enrollment
- 207 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mease Countryside Hospital
Acute Care Hospitals · Safety Harbor, FLAscension All Saints Hospital
Acute Care Hospitals · Racine, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MOUNT PLEASANT, WI 53405
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gregory Johnson's NPI number?
The NPI number for Gregory Johnson is 1477031557. It was assigned to this individual provider in the NPPES registry on August 1, 2018.
Where is Gregory Johnson located?
Gregory Johnson practices at 3801 Spring St, Mount Pleasant, WI 53405. The listed phone number is (262) 687-4011.
What is Gregory Johnson's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Gregory Johnson enrolled in Medicare?
Yes. Gregory Johnson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregory Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Johnson reassigns Medicare benefits to 6 organizations: Racine Anesthesia Services, LLC (Mount Pleasant, WI), Anesthesia Partners Services, S.C. (Milwaukee, WI), Sheridan Healthcorp Inc (Pensacola, FL), Greater Florida Anesthesiologists, LLC (Land O Lakes, FL), Baycare Medical Group, Inc. (Clearwater, FL) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gregory Johnson affiliated with any hospitals?
According to CMS data, Gregory Johnson is affiliated with Mease Countryside Hospital and Ascension All Saints Hospital.
When was this NPI record last updated?
The NPPES record for Gregory Johnson was last updated on June 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mr. Gregory J Johnson · NPI 1477031557
Nurse Anesthetist, Certified Registered physician in Mount Pleasant, Wisconsin. Individual provider, active in the CMS NPPES registry since August 1, 2018.
## Identity
- **NPI:** 1477031557 (Entity type: Individual)
- **Enumerated:** August 1, 2018
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** APRN11020093 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 3801 SPRING ST, Mount Pleasant, WI 53405
- **Phone:** (262) 687-4011
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Racine Anesthesia Services, LLC (NPI 1467782748, Mount Pleasant, WI); Anesthesia Partners Services, S.C. (NPI 1861810947, Milwaukee, WI); Sheridan Healthcorp Inc (NPI 1811664386, Pensacola, FL); Greater Florida Anesthesiologists, LLC (NPI 1689398729, Land O Lakes, FL); Baycare Medical Group, Inc. (NPI 1043269871, Clearwater, FL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** June 25, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1477031557) · Data from the CMS NPPES public registry.