Dr Carolyn J Hahn, MD - Psychiatry & Neurology in Greenwich, CT

Dr Carolyn J Hahn, MD is a Psychiatry & Neurology - Psychiatry physician based in Greenwich, Connecticut. Dr Carolyn J Hahn is licensed to practice in Connecticut (license number 050912) and her current practice location is 115 Mason St Ste 1, Greenwich, Connecticut. She can be reached at her office (for appointments etc.) via phone at (203) 997-7558.

NPI number for Dr Carolyn J Hahn is 1750543864 and her current mailing address is 115 Mason St Ste 1, Greenwich, Connecticut. She does not participate in medicare program and thus does not accept medicare assignments. Her NPI Number is 1750543864.

Contact Information

Dr Carolyn J Hahn, MD
115 Mason St Ste 1,
Greenwich, CT 06830-6630
(203) 997-7558
(203) 298-7385

Map and Direction




Physician's Profile

Full NameDr Carolyn J Hahn
GenderFemale
SpecialityPsychiatry & Neurology - Psychiatry
Location115 Mason St Ste 1, Greenwich, Connecticut
Accepts Medicare AssignmentsDoes not participate in Medicare Program. She may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1750543864
  • Provider Enumeration Date: 06/30/2008
  • Last Update Date: 04/07/2022

Medical Identifiers

Medical identifiers for Dr Carolyn J Hahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750543864NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 60253974 (New York)Secondary
2084P0800XPsychiatry & Neurology - Psychiatry 050912 (Connecticut)Primary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Carolyn J Hahn is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Carolyn J Hahn, MD
115 Mason St Ste 1,
Greenwich, CT 06830-6630

Ph: (203) 997-7558
Dr Carolyn J Hahn, MD
115 Mason St Ste 1,
Greenwich, CT 06830-6630

Ph: (203) 997-7558

Reviews and Comments


Psychiatry & Neurology Doctors in Greenwich, CT

Dr. Ronald Alfred Grant, M.D.
Psychiatry & Neurology
Medicare: Medicare Enrolled
Practice Location: 45 E Putnam Ave, Greenwich, CT 06830
Phone: 203-629-3880    Fax: 203-262-6593
James George Katis, MD
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 145 Old Mill Rd, Greenwich, CT 06831
Phone: 203-622-1213    
Lucy D Flynn, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 28 Lafayette Pl, Greenwich, CT 06830
Phone: 203-918-2982    
Linus Abrams, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 4 Dearfield Dr, Greenwich, CT 06831
Phone: 203-861-2654    Fax: 203-869-3142
Dr. William Harrison Koch, MD
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 151 Milbank Ave, Greenwich, CT 06830
Phone: 203-622-0337    Fax: 203-622-1726
Gene Ganz, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 5 Perryridge Rd, Outpatient Psychiatric Services, Greenwich, CT 06830
Phone: 203-863-3300    Fax: 203-863-3446
Dr. Wynn K Jackson, MD
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 2 Benedict Pl, Greenwich, CT 06830
Phone: 203-661-7575    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.