Mary Hahn, MD - Medicare Psychiatry & Neurology in Stony Brook, NY

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Mary Hahn, MD is a medicare enrolled "Psychiatry & Neurology - Vascular Neurology" physician in Stony Brook, New York. Her current practice location is Health Sciences Center T12-020, Stony Brook, New York. You can reach out to her office (for appointments etc.) via phone at (631) 444-8118.

Mary Hahn is licensed to practice in New York (license number 322453) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1275021081.

Contact Information

Mary Hahn, MD
Health Sciences Center T12-020,
Stony Brook, NY 11794-0001
(631) 444-8118
Not Available

Map and Direction




Physician's Profile

Full NameMary Hahn
GenderFemale
SpecialityPsychiatry & Neurology - Vascular Neurology
LocationHealth Sciences Center T12-020, Stony Brook, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1275021081
  • Provider Enumeration Date: 04/26/2018
  • Last Update Date: 07/11/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8426394685
  • Enrollment ID: I20230706002628

Medical Identifiers

Medical identifiers for Mary Hahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275021081NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084N0400XPsychiatry & Neurology - Neurology 036.160135 (Illinois)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
2084V0102XPsychiatry & Neurology - Vascular Neurology 322453 (New York)Primary
2084N0400XPsychiatry & Neurology - Neurology 322453 (New York)Secondary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Mary Hahn allows following entities to bill medicare on her behalf.
Entity NameNeurology Associates Of Stony Brook, University Faculty Practice Corpo
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699720888
PECOS PAC ID: 5193617116
Enrollment ID: O20040325001262

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. Mary Hahn is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Mary Hahn, MD
Health Sciences Center T12-020,
Stony Brook, NY 11794-0001

Ph: (631) 444-8118		Mary Hahn, MD
Health Sciences Center T12-020,
Stony Brook, NY 11794-0001

Ph: (631) 444-8118

Reviews and Comments


Psychiatry & Neurology Doctors in Stony Brook, NY

Dr. Maged Sobhy Soliman, M.D.
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Dr. Adeeb Yacoub, M.D.
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Dr. Shennan Aibel Weiss, M.D., PH.D.
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Kamil Stefanowski, M.D.
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Dr. Brian Ghezelaiagh, MD
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Practice Location: 2500 Nesconset Hwy Bldg 17c, Stony Brook, NY 11790
Phone: 631-210-6305    Fax: 631-292-7376
Dr. Mark Sedler, M.D.
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Practice Location: Health Sciences Center - T10, Stony Brook, NY 11790
Phone: 631-444-2571    
Dr. Zoya Popivker,
Psychiatry & Neurology
Medicare: Medicare Enrolled
Practice Location: Department Of Psychiatry, Putnam Hall, Suny At Stony Brook, Stony Brook, NY 11794
Phone: 631-632-8850    Fax: 631-632-4448

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.