Frederick E. Siefert, Md, Pc - Primary Care in Old Greenwich, CT

Frederick E. Siefert, Md, Pc is a primary clinic (Internal Medicine) in Old Greenwich, Connecticut. The current practice location for Frederick E. Siefert, Md, Pc is 8 W End Ave, Old Greenwich, Connecticut. For appointments, you can reach them via phone at (203) 637-5406. The mailing address for Frederick E. Siefert, Md, Pc is 8 W End Ave, Old Greenwich, Connecticut and phone number is (203) 637-5406.

Frederick E. Siefert, Md, Pc is licensed to practice in Connecticut (license number ) and its NPI number is 1417093683. This medical practice does not participate in medicare program and thus may not accept your medicare insurance. You may check if they accept your insurance at (203) 637-5406.

Contact Information

Frederick E. Siefert, Md, Pc
8 W End Ave
Old Greenwich
CT 06870-1642
(203) 637-5406
(203) 637-5408

Map and Direction


Primary Care Clinic Profile

Full NameFrederick E. Siefert, Md, Pc
SpecialityInternal Medicine
Location8 W End Ave, Old Greenwich, Connecticut
Authorized Official Name and PositionFrederick E Siefert (PRESIDENT)
Authorized Official Contact2036375406
Accepts Medicare InsuranceThis clinic does not participate in Medicare Program.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Frederick E. Siefert, Md, Pc
8 W End Ave
Old Greenwich
CT 06870-1642

Ph: (203) 637-5406
Frederick E. Siefert, Md, Pc
8 W End Ave
Old Greenwich
CT 06870-1642

Ph: (203) 637-5406

NPI Details:

NPI Number1417093683
Provider Enumeration Date01/29/2007
Last Update Date09/10/2007

Medical Identifiers

Medical identifiers for Frederick E. Siefert, Md, Pc such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417093683NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine (Connecticut)Primary

Reviews and Comments


Internal Medicine in Old Greenwich, CT

Edra Stern Md Llc
Primary Care Clinic
Medicare: Medicare Enrolled
Practice Location: 1455 East Putnam Ave, 2nd Floor, Old Greenwich, CT 06870
Phone: 203-661-4242    Fax: 203-625-9626
Rebecca Warkol Md Llc
Primary Care Clinic
Medicare: Medicare Enrolled
Practice Location: 8 W End Ave, Old Greenwich, CT 06870
Phone: 203-637-5406    Fax: 203-637-5408
Old Greenwich Medical Group Llc
Primary Care Clinic
Medicare: Not Enrolled in Medicare
Practice Location: 8 W End Ave, Old Greenwich, CT 06870
Phone: 203-637-5400    Fax: 203-637-5408

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.