Jeffrey S Gelwan, MD - Medicare Internal Medicine in Glastonbury, CT

Jeffrey S Gelwan, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Glastonbury, Connecticut. His current practice location is 300 Western Blvd, Suite A, Glastonbury, Connecticut. You can reach out to his office (for appointments etc.) via phone at (860) 657-1920.

Jeffrey S Gelwan is licensed to practice in Connecticut (license number 024826) 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 1619071230.

Contact Information

Jeffrey S Gelwan, MD
300 Western Blvd, Suite A,
Glastonbury, CT 06033-4305
(860) 657-1920
(860) 657-1925

Map and Direction




Physician's Profile

Full NameJeffrey S Gelwan
GenderMale
SpecialityInternal Medicine - Gastroenterology
Location300 Western Blvd, Glastonbury, Connecticut
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1619071230
  • Provider Enumeration Date: 09/12/2006
  • Last Update Date: 04/29/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 0648291526
  • Enrollment ID: I20100724000019

Medical Identifiers

Medical identifiers for Jeffrey S Gelwan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619071230NPI-NPPES
001248261MedicaidCT

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 024826 (Connecticut)Secondary
207RG0100XInternal Medicine - Gastroenterology 024826 (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. Jeffrey S Gelwan allows following entities to bill medicare on his behalf.
Entity NameConnecticut Gi Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023124625
PECOS PAC ID: 9830110758
Enrollment ID: O20070112000011
Entity NameHartford Healthcare Medical Group Specialists Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023584216
PECOS PAC ID: 3173866241
Enrollment ID: O20190514001441

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. Jeffrey S Gelwan 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
Jeffrey S Gelwan, MD
2139 Silas Deane Hwy,
Rocky Hill, CT 06067-2336

Ph: (860) 257-4131
Jeffrey S Gelwan, MD
300 Western Blvd, Suite A,
Glastonbury, CT 06033-4305

Ph: (860) 657-1920

Reviews and Comments


Internal Medicine Doctors in Glastonbury, CT

Dr. Shishir Mathur, M.D.
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Phone: 860-633-0500    Fax: 860-633-5250
Ralph Peter Stocker, M.D.
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Phone: 860-246-4260    Fax: 860-430-9770
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Thomas Freund, MD
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Phone: 860-633-0500    Fax: 860-633-5250
William Preskenis, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 27 Sycamore St, Ste 100, Prime Healthcare, Glastonbury, CT 06033
Phone: 860-659-0581    Fax: 860-652-3077
Anthony F Lasala, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 703 Hebron Ave, Glastonbury, CT 06033
Phone: 860-659-8830    Fax: 860-633-8529

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.