Ionut A Mosteanu, MD - Medicare Internal Medicine in Ridgefield, CT

Ionut A Mosteanu, MD is a medicare enrolled "Internal Medicine" physician in Ridgefield, Connecticut. He graduated from medical school in 2005 and has 19 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Nuvance Health Medical Practice Ct Inc and his current practice location is 21 South St, Ridgefield, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 438-6541.

Ionut A Mosteanu is licensed to practice in Connecticut (license number 049558) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1336300037.

Contact Information

Ionut A Mosteanu, MD
21 South St,
Ridgefield, CT 06877-4102
(203) 438-6541
(203) 431-0947

Map and Direction




Physician's Profile

Full NameIonut A Mosteanu
GenderMale
SpecialityInternal Medicine
Experience19 Years
Location21 South St, Ridgefield, Connecticut
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ionut A Mosteanu graduated from medical school in 2005
  NPI Data:
  • NPI Number: 1336300037
  • Provider Enumeration Date: 06/24/2008
  • Last Update Date: 04/15/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 5890973317
  • Enrollment ID: I20110706000474

Medical Identifiers

Medical identifiers for Ionut A Mosteanu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336300037NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 049558 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Danbury HospitalDanbury, CTHospital
Norwalk HospitalNorwalk, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Nuvance Health Medical Practice Ct Inc4789597691642

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. Ionut A Mosteanu allows following entities to bill medicare on his behalf.
Entity NameNuvance Health Medical Practice Ct Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407898117
PECOS PAC ID: 4789597691
Enrollment ID: O20031205000130

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. Ionut A Mosteanu 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
Ionut A Mosteanu, MD
21 South St,
Ridgefield, CT 06877-4102

Ph: () -
Ionut A Mosteanu, MD
21 South St,
Ridgefield, CT 06877-4102

Ph: (203) 438-6541

Reviews and Comments


Internal Medicine Doctors in Ridgefield, CT

Dr. Jonathan Mark Gordon, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 21 South St, Ridgefield, CT 06877
Phone: 203-438-6541    
Dr. Cristina Hangwa Hung, M.D
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 51 Pheasant Ln, Ridgefield, CT 06877
Phone: 917-755-6040    
David B Huang, MD, PHD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 900 Ridgebury Rd # G4, Ridgefield, CT 06877
Phone: 203-791-6650    
Saragur M Jyothi, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 580 Barrack Hill Rd, Ridgefield, CT 06877
Phone: 203-431-8836    
Dr. Jennifer Beth Rubin, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 21 South St, Ridgefield, CT 06877
Phone: 203-438-6541    
Robert L Ruxin, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 30 Prospect St, Suite 300, Ridgefield, CT 06877
Phone: 203-438-7339    
Dr. Frank A Delli Carpini, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 67 Nutmeg Rdg, Ridgefield, CT 06877
Phone: 203-948-0543    Fax: 203-739-0405

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.