Mark Dennis V Geronimo, MD - Medicare Family Medicine in New London, CT

  1. Home
  2. Family Medicine
  3. CT
  4. New London
Mark Dennis V Geronimo, MD is a medicare enrolled "Family Medicine" physician in New London, Connecticut. His current practice location is 365 Montauk Ave, New London, Connecticut. You can reach out to his office (for appointments etc.) via phone at (860) 442-0711.

Mark Dennis V Geronimo is licensed to practice in Connecticut (license number 52895) 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 1215132949.

Contact Information

Mark Dennis V Geronimo, MD
365 Montauk Ave,
New London, CT 06320-4700
(860) 442-0711
(413) 543-7962

Map and Direction




Physician's Profile

Full NameMark Dennis V Geronimo
GenderMale
SpecialityFamily Medicine
Location365 Montauk Ave, New London, Connecticut
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1215132949
  • Provider Enumeration Date: 06/21/2007
  • Last Update Date: 07/22/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 4082738596
  • Enrollment ID: I20140627002024

Medical Identifiers

Medical identifiers for Mark Dennis V Geronimo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1215132949NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 2010024512 (Missouri)Secondary
208M00000XHospitalist 036128606 (Illinois)Secondary
208M00000XHospitalist 52895 (Connecticut)Secondary
207Q00000XFamily Medicine 52895 (Connecticut)Primary
207Q00000XFamily Medicine 036128606 (Illinois)Secondary

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. Mark Dennis V Geronimo allows following entities to bill medicare on his behalf.
Entity NameMiddlesex Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972563138
PECOS PAC ID: 5092611731
Enrollment ID: O20031216000592
Entity NameWindham Community Memorial Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023191467
PECOS PAC ID: 2961309059
Enrollment ID: O20031217000231
Entity NameThe William W Backus Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467517235
PECOS PAC ID: 0749170645
Enrollment ID: O20040316000739

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. Mark Dennis V Geronimo 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
Mark Dennis V Geronimo, MD
326 Washington St,
Norwich, CT 06360-2740

Ph: (860) 442-0711		Mark Dennis V Geronimo, MD
365 Montauk Ave,
New London, CT 06320-4700

Ph: (860) 442-0711

Reviews and Comments


Family Medicine Doctors in New London, CT

Amit Khanna, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 365 Montauk Ave, New London, CT 06320
Phone: 860-442-0711    
Patti Mugo, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4 Shaws Cv Ste 103, New London, CT 06320
Phone: 860-443-3778    
Dr. Lakshmi Basu, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 931 Bank St., New London, CT 06320
Phone: 860-447-2233    Fax: 860-447-2669
Dr. Fung (adam) Yeung, D.O
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 365 Montauk Ave, New London, CT 06320
Phone: 860-442-0711    
Marian Nicole Sarosi, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 507 Ocean Ave, New London, CT 06320
Phone: 860-442-7502    
Wilton Craig Calderon, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 194 Howard St, New London, CT 06320
Phone: 860-444-3366    
Adam Seidner, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 325 Montauk Ave, New London, CT 06320
Phone: 860-344-6300    Fax: 860-344-9249

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.