Felice R Zwas, MD - Medicare Gastroenterology in Greenwich, CT

Felice R Zwas, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Greenwich, Connecticut. She went to Columbia University College Of Physicians And Surgeons and graduated in 1980 and has 44 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice Connecticut Gi Pc and her current practice location is 500 W Putnam Ave, Suite 100, Greenwich, Connecticut. You can reach out to her office (for appointments etc.) via phone at (203) 863-2900.

Felice R Zwas is licensed to practice in Connecticut (license number 028878) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1225059116.

Contact Information

Felice R Zwas, MD
500 W Putnam Ave, Suite 100,
Greenwich, CT 06830-6086
(203) 863-2900
(203) 863-2901



Physician's Profile

Full NameFelice R Zwas
GenderFemale
SpecialityGastroenterology
Experience44 Years
Location500 W Putnam Ave, Greenwich, Connecticut
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Felice R Zwas attended and graduated from Columbia University College Of Physicians And Surgeons in 1980
  NPI Data:
  • NPI Number: 1225059116
  • Provider Enumeration Date: 07/23/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 1759480353
  • Enrollment ID: I20101004001235

Medical Identifiers

Medical identifiers for Felice R Zwas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225059116NPI-NPPES
010028878CT01OtherCTANTHEM
028878OtherCTCOMMERCIAL
1288788MedicaidCT

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 028878 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Greenwich Hospital Association -Greenwich, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Connecticut Gi Pc9830110758185

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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. Felice R Zwas allows following entities to bill medicare on her behalf.
Entity NameConnecticut Gi Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023124625
PECOS PAC ID: 9830110758
Enrollment ID: O20070112000011

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Entity NameCenter For Gastrointestinal Medicine Of Fairfield & Westchester, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003837907
PECOS PAC ID: 0143111989
Enrollment ID: O20070622000104

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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. Felice R Zwas 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
Felice R Zwas, MD
500 W Putnam Ave, Suite 100,
Greenwich, CT 06830-6086

Ph: (203) 863-2900
Felice R Zwas, MD
500 W Putnam Ave, Suite 100,
Greenwich, CT 06830-6086

Ph: (203) 863-2900

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Internal Medicine Doctors in Greenwich, CT

Dr. Nicholas Harrison Browning, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 75 Holly Hill Ln, Greenwich, CT 06830
Phone: 203-863-3400    
Francesca Montanari, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 77 Lafayette Pl, Greenwich, CT 06830
Phone: 203-863-3700    
Dr. Lisa Kurian, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 75 Holly Hill Ln, Greenwich, CT 06830
Phone: 203-869-6960    Fax: 203-869-5103
Dr. Steven Smith, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 5 Perryridge Rd, Greenwich, CT 06830
Phone: 203-863-3911    
Dr. Marcelyn Carol Molloy, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 75 Holly Hill Ln, Greenwich, CT 06830
Phone: 203-869-6960    Fax: 203-869-5103
Dr. Alexander Delvecchio, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 55 Holly Hill Ln, Suite 240, Greenwich, CT 06830
Phone: 203-863-4210    Fax: 203-622-1872
Dr. Sunil Rana, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 49 Lake Ave Ste 2, Greenwich, CT 06830
Phone: 203-869-7704    Fax: 203-661-8596

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