MRS. GRETCHEN TOUMA MICHAELSON APRN
NPI 1508898800
Nurse Practitioner - Adult Health in South Windsor, CT
About Mrs. Gretchen Touma Michaelson Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. GRETCHEN TOUMA MICHAELSON APRN (NPI 1508898800) is an individual adult health provider in South Windsor, Connecticut, licensed in Connecticut (003107) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Massachusetts Medical School (2004).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mrs. Gretchen Touma Michaelson Aprn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gretchen Michaelson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
South Windsor, CT 06074
- Reassigned Medicare billing, Connecticut enrollment
- 4 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06074 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SOUTH WINDSOR, CT 06074
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 Gretchen Michaelson's NPI number?
The NPI number for Gretchen Michaelson is 1508898800. It was assigned to this individual provider in the NPPES registry on July 7, 2006.
Where is Gretchen Michaelson located?
Gretchen Michaelson practices at 1741 Ellington Rd Ste 1, South Windsor, CT 06074. The listed phone number is (860) 263-3603.
What is Gretchen Michaelson's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Gretchen Michaelson enrolled in Medicare?
Yes. Gretchen Michaelson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gretchen Michaelson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Michaelson reassigns Medicare benefits to Headache Care Center PLLC (South Windsor, CT). The 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 Gretchen Michaelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gretchen Michaelson was last updated on July 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Mrs. Gretchen Touma Michaelson, APRN · NPI 1508898800
Adult Health physician in South Windsor, Connecticut. Individual provider, active in the CMS NPPES registry since July 7, 2006.
## Identity
- **NPI:** 1508898800 (Entity type: Individual)
- **Enumerated:** July 7, 2006
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 003107 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 1741 ELLINGTON RD STE 1, South Windsor, CT 06074
- **Phone:** (860) 263-3603 · **Fax:** (860) 254-6167
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Headache Care Center PLLC (NPI 1932605318, South Windsor, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Massachusetts Medical School, class of 2004
## Record status
- **NPPES last updated:** July 17, 2018
- **Other identifiers:** Other 2V5468; Other 030107
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Source: [NPI Profile](https://npiprofile.com/npi/1508898800) · Data from the CMS NPPES public registry.