Dr Nelson Tan Chao, MD - Medicare Internal Medicine in Shelton, CT

Dr Nelson Tan Chao, MD is a medicare enrolled "Internal Medicine" physician in Shelton, Connecticut. He graduated from medical school in 1982 and has 42 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 4 Corporate Dr, Suite 268, Shelton, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 402-0377.

Dr Nelson Tan Chao is licensed to practice in Connecticut (license number 032857) 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 1619974896.

Contact Information

Dr Nelson Tan Chao, MD
4 Corporate Dr, Suite 268,
Shelton, CT 06484-6211
(203) 402-0377
(203) 402-0772

Map and Direction




Physician's Profile

Full NameDr Nelson Tan Chao
GenderMale
SpecialityInternal Medicine
Experience42 Years
Location4 Corporate Dr, Shelton, 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:
  • Dr Nelson Tan Chao graduated from medical school in 1982
  NPI Data:
  • NPI Number: 1619974896
  • Provider Enumeration Date: 07/04/2005
  • Last Update Date: 04/24/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 8628026358
  • Enrollment ID: I20050110000056

Medical Identifiers

Medical identifiers for Dr Nelson Tan Chao such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619974896NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease 032857 (Connecticut)Secondary
207R00000XInternal Medicine 032857 (Connecticut)Primary
207K00000XAllergy & Immunology 032857 (Connecticut)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Bridgeport HospitalBridgeport, CTHospital

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. Dr Nelson Tan Chao allows following entities to bill medicare on his behalf.
Entity NameAllergy & Pulmonary Specialists Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275755902
PECOS PAC ID: 6406807387
Enrollment ID: O20050208000817

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. Dr Nelson Tan Chao 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
Dr Nelson Tan Chao, MD
4 Corporate Dr, Suite 268,
Shelton, CT 06484-6211

Ph: (203) 402-0377
Dr Nelson Tan Chao, MD
4 Corporate Dr, Suite 268,
Shelton, CT 06484-6211

Ph: (203) 402-0377

Reviews and Comments


Internal Medicine Doctors in Shelton, CT

Lenore M Snowden Opalak, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 4 Corporate Dr, Suite 394, Shelton, CT 06484
Phone: 203-225-0375    Fax: 203-225-0376
Stephen R Woodworth, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2 Ivy Brook Rd, Suite 205, Shelton, CT 06484
Phone: 203-922-9466    Fax: 203-922-9477
Ana Graciela Azueta-jimenez, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 760 River Rd, Shelton, CT 06484
Phone: 203-380-5282    
Dr. Piotr Waldemar Baginski, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4 Corporate Dr, Suite 283, Shelton, CT 06484
Phone: 203-944-9775    Fax: 203-944-9964
Dr. Murugesapillai Koneswaran, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 21 Huntington Plaza, Shelton, CT 06484
Phone: 203-929-6358    Fax: 203-929-3826
Dr. Lavanya Bellumkonda, MBBS
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4 Corporate Dr Ste 100, Shelton, CT 06484
Phone: 203-929-9799    
Joseph Thomas Coyne, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2 Trap Falls Rd, Ste 414, Shelton, CT 06484
Phone: 203-929-7353    Fax: 203-929-0756

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.