William Guinan, MD - Medicare Obstetrics & Gynecology in Manchester, CT

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William Guinan, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Manchester, Connecticut. His current practice location is 388 West Center St, Manchester, Connecticut. You can reach out to his office (for appointments etc.) via phone at (860) 649-1120.

William Guinan is licensed to practice in Connecticut (license number 028847) 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 1144317520.

Contact Information

William Guinan, MD
388 West Center St,
Manchester, CT 06040
(860) 649-1120
(860) 645-8541

Map and Direction




Physician's Profile

Full NameWilliam Guinan
GenderMale
SpecialityObstetrics & Gynecology
Location388 West Center St, Manchester, Connecticut
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1144317520
  • Provider Enumeration Date: 10/06/2006
  • Last Update Date: 10/27/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 0345393799
  • Enrollment ID: I20090731000604

Medical Identifiers

Medical identifiers for William Guinan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144317520NPI-NPPES
001288473MedicaidCT

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 028847 (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. William Guinan allows following entities to bill medicare on his behalf.
Entity NameTrinity Health Of New England Provider Network Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003882812
PECOS PAC ID: 0941113567
Enrollment ID: O20031110000651
Entity NameAmerican Current Care Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851571608
PECOS PAC ID: 9739260019
Enrollment ID: O20110707000087
Entity NameSignify Health Medical Associates Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750845863
PECOS PAC ID: 2163764424
Enrollment ID: O20200114001048

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. William Guinan 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
William Guinan, MD
388 West Center St, Manchester Obgyn Assoc,
Manchester, CT 06040

Ph: (860) 645-6670		William Guinan, MD
388 West Center St,
Manchester, CT 06040

Ph: (860) 649-1120

Reviews and Comments


Obstetrics & Gynecology Doctors in Manchester, CT

Lawrence Arky, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 388 West Center St, Manshester Ob-gyn Assoc, Manchester, CT 06040
Phone: 860-645-6670    Fax: 860-645-8541
Rabale Hasan, MD, MPH
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 388 W Center St, Manchester, CT 06040
Phone: 860-649-1120    
Pamela L. Lewis, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 360 Tolland Tpke, Suite 3b, Manchester, CT 06042
Phone: 860-646-1157    Fax: 860-646-9877
Daniel Welling, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 388 West Center St, Manchester, CT 06040
Phone: 860-649-1120    Fax: 860-645-8541
Dr. Carla Rae Gunn, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 388 W Center St, Manchester, CT 06040
Phone: 860-649-1120    
Aziza Omrani, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 388 West Center St, Manchester, CT 06040
Phone: 860-649-1120    Fax: 860-645-8541

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.