STEFANIE LYNN GILLSON MD
NPI 1477087237
Psychiatry & Neurology - Psychiatry in New Haven, CT

Q: What is Stefanie Gillson's NPI number?

The NPI number for Stefanie Gillson is 1477087237. It was assigned to this individual provider in the NPPES registry on April 18, 2017.

Q: What is Stefanie Gillson's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Stefanie Gillson was last updated on November 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since April 18, 2017PECOS Enrolled

300 GEORGE ST STE 901, NEW HAVEN, CT 06511(203) 785-2095 Get Directions Write a Review

NPPES record last updated: November 29, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 13, 2022, Apr 18, 2017 (2 updates tracked since 2017).

On this page

About Stefanie Lynn Gillson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEFANIE LYNN GILLSON MD (NPI 1477087237) is an individual psychiatry provider in New Haven, Connecticut, licensed in Connecticut (63785) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477087237

Entity TypeIndividualFemale

Primary Taxonomy2084P0800X

Provider Legal NameSTEFANIE LYNN GILLSONCredential: MD

Location Address300 GEORGE ST STE 901New Haven, CT 06511-6662

Mailing Address300 George St Ste 901New Haven, CT 06511-6662 · (203) 785-2095

Phone(203) 785-2095

Sole ProprietorYes

Enumeration DateApril 18, 2017

Last NPPES UpdateNovember 29, 20232 updates tracked since enumeration

NPPES CertifiedNovember 29, 2023

✔ NPI 1477087237 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

Licenses✔ Licensed in CT · 63785✔ Licensed in MT · 113304

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License H418028519813 (MN)

300 GEORGE ST STE 901, New Haven, CT 06511

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stefanie Lynn Gillson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Stefanie Gillson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yale University

0.4 mi

Advanced Practice Midwife

100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519

Reassigned Medicare billing, Connecticut enrollment
3,728 clinicians in this Medicare group

NPI 1124148887 (203) 737-5432

Silver Hill Hospital, Inc

30 mi

Psychiatric Hospital

208 VALLEY RD
New Canaan, CT 06840

Reassigned Medicare billing, Connecticut enrollment
47 clinicians in this Medicare group

NPI 1982658035 (203) 801-2290

Hartford Healthcare Medical Group Specialists, PLLC

34 mi

Surgery

85 SEYMOUR ST STE 415
Hartford, CT 06106

Reassigned Medicare billing, Connecticut enrollment
1,921 clinicians in this Medicare group

NPI 1023584216 (860) 246-2071

The Charlotte Hungerford Hospital

35 mi

General Acute Care Hospital

540 LITCHFIELD ST
Torrington, CT 06790

Reassigned Medicare billing, Connecticut enrollment
374 clinicians in this Medicare group

NPI 1629075734 (860) 496-6729

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06511 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$183.10 typical visit price

range $60.82 – $183.10

Typical copayment $45.77 (range $15.20 – $45.77)

Most-billed visit code 99205

Established Patient

$75.55 typical visit price

range $19.76 – $149.26

Typical copayment $18.88 (range $4.94 – $37.31)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DIEGO GALAN DONLO

Psychiatry & Neurology (Psychiatry)

300 GEORGE ST STE 901
NEW HAVEN, CT 06511