Dr Stephen O'mahony, MD - Medicare Internal Medicine in Norwalk, CT

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Dr Stephen O'mahony, MD is a medicare enrolled "Internal Medicine" physician in Norwalk, Connecticut. His current practice location is 24 Stevens St, Norwalk, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 852-2375.

Dr Stephen O'mahony is licensed to practice in Connecticut (license number 037765) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1144291162.

Contact Information

Dr Stephen O'mahony, MD
24 Stevens St,
Norwalk, CT 06850-3852
(203) 852-2375
Not Available

Map and Direction




Physician's Profile

Full NameDr Stephen O'mahony
GenderMale
SpecialityInternal Medicine
Location24 Stevens St, Norwalk, Connecticut
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1144291162
  • Provider Enumeration Date: 01/28/2006
  • Last Update Date: 10/01/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 6507889870
  • Enrollment ID: I20170731000734

Medical Identifiers

Medical identifiers for Dr Stephen O'mahony such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144291162NPI-NPPES
001377656MedicaidCT
P1871146OtherCTOXFORD
37765OtherCTCONNECTICARE
5174426-001OtherCTCIGNA
7688020OtherCTAETNA
1982162OtherCTUHC
010037765CT01OtherCTANTHEM B/C
OV6308OtherDEHEALTHNET

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 037765 (Connecticut)Secondary
207QA0505XFamily Medicine - Adult Medicine 037765 (Connecticut)Secondary
207R00000XInternal Medicine 037765 (Connecticut)Primary

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. Dr Stephen O'mahony allows following entities to bill medicare on his behalf.
Entity NameBarnabas Health Medical Group Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841557246
PECOS PAC ID: 9537316955
Enrollment ID: O20120820000951

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 Stephen O'mahony 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
Dr Stephen O'mahony, MD
24 Stevens St,
Norwalk, CT 06850-3852

Ph: (203) 852-2375		Dr Stephen O'mahony, MD
24 Stevens St,
Norwalk, CT 06850-3852

Ph: (203) 852-2375

Reviews and Comments


Internal Medicine Doctors in Norwalk, CT

Dr. Eve Block, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 24 Stevens St, Norwalk, CT 06850
Phone: 203-852-2665    Fax: 203-739-8878
Vittoria Gassman, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 120 Connecticut Ave, Norwalk Community Health Center, Norwalk, CT 06854
Phone: 203-899-1770    
Dr. Yonatan J Hillman, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 30 Stevens St Ste D, Norwalk, CT 06850
Phone: 203-852-3455    
Maria A Martin, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 761 Main Ave, Suite 201, Norwalk, CT 06851
Phone: 203-838-4000    Fax: 203-845-9535
Xiaofei Wei,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 761 Main Ave, Suite 201, Norwalk, CT 06851
Phone: 203-838-4000    Fax: 203-845-9535
Daniel Ethan Boxer, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 24 Stevens St, Norwalk, CT 06850
Phone: 203-845-4811    Fax: 203-845-4897
Dr. Caitlyn Kuwata, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 34 Maple St, Norwalk, CT 06850
Phone: 203-852-2025    

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.