DR. CAROLYN J. HAHN M.D.
NPI 1750543864
Psychiatry & Neurology - Psychiatry in Greenwich, CT
About Dr. Carolyn J. Hahn M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CAROLYN J. HAHN M.D. (NPI 1750543864) is an individual psychiatry provider in Greenwich, Connecticut, licensed in Connecticut (050912) and active in the NPI registry since June 2008. She has opted out of Medicare through November 18, 2026 and remains eligible to order and refer.
NPPES Registry Identity
Specialties & Licenses
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.
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Opted out of Medicare
Dr. Carolyn J. Hahn M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from November 18, 2020 through November 18, 2026.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06830 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.
GREENWICH, CT 06830
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 Carolyn Hahn's NPI number?
The NPI number for Carolyn Hahn is 1750543864. It was assigned to this individual provider in the NPPES registry on June 30, 2008.
Where is Carolyn Hahn located?
Carolyn Hahn practices at 115 Mason St Ste 1, Greenwich, CT 06830. The listed phone number is (203) 997-7558.
What is Carolyn Hahn's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Carolyn Hahn enrolled in Medicare?
No. Carolyn Hahn has opted out of Medicare through November 18, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.
When was this NPI record last updated?
The NPPES record for Carolyn Hahn was last updated on April 7, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.
