Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mrs. Gretchen Touma Michaelson, APRN

Individual provider Critical Care Medicine Registered Nurse · NPI 1508898800

Mrs. Gretchen Touma Michaelson, APRN is a Nurse Practitioner in South Windsor, Connecticut. Graduated from University of Massachusetts Medical School in 2004, 22 years ago. Practices with Headache Care Center PLLC, a 4-clinician group and offers telehealth. Licensed in Connecticut and Massachusetts.

Years since qualifying
22
Trained at
University of Massachusetts Medical School
Licensed in
CT, MA
In the registry since
2006
Specialties on file
3
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

Practice location Address checks out

1741 Ellington Rd Ste 1
South Windsor, CT 06074
Phone: (860) 263-3603
Fax: (860) 254-6167
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 003107 (CT)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 074698 (CT)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 241128 (MA)

Record details

NPI number1508898800
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedJuly 7, 2006
Last updated in NPPESJuly 17, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2004 (22 years in practice)
Group practice Headache Care Center Pllc — 4 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services