Mr Oliver B Diaz, MD - Medicare Internal Medicine in Bristol, CT

Mr Oliver B Diaz, MD is a medicare enrolled "Internal Medicine" physician in Bristol, Connecticut. He graduated from medical school in 1968 and has 56 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 46 Goodwin St, Bristol, Connecticut. You can reach out to his office (for appointments etc.) via phone at (860) 589-5593.

Mr Oliver B Diaz is licensed to practice in Connecticut (license number 016620) 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 1124037312.

Contact Information

Mr Oliver B Diaz, MD
46 Goodwin St,
Bristol, CT 06010-5807
(860) 589-5593
(860) 584-0056

Map and Direction




Physician's Profile

Full NameMr Oliver B Diaz
GenderMale
SpecialityInternal Medicine
Experience56 Years
Location46 Goodwin St, Bristol, 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:
  • Mr Oliver B Diaz graduated from medical school in 1968
  NPI Data:
  • NPI Number: 1124037312
  • Provider Enumeration Date: 08/05/2006
  • Last Update Date: 06/09/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 5193794170
  • Enrollment ID: I20040927000897

Medical Identifiers

Medical identifiers for Mr Oliver B Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124037312NPI-NPPES
010016620CT01OtherCTBLUE SHIELD
0192997OtherCTCIGNA
83286OtherCTU.S. HEALTHCARE
P464314OtherCTOXFORD
791603OtherCTCONNECTICARE
500HBX031CT01OtherCTBLUE CROSS
4342196OtherCTAETNA
0016620600OtherCTBLUE CARE FAMILY
OR1837OtherCTHEALTHNET
001166206MedicaidCT

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 016620 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Bristol HospitalBristol, 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. Mr Oliver B Diaz allows following entities to bill medicare on his behalf.
Entity NameHartford Healthcare Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043561301
PECOS PAC ID: 1153573902
Enrollment ID: O20121201000007

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. Mr Oliver B Diaz 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
Mr Oliver B Diaz, MD
46 Goodwin St,
Bristol, CT 06010-5807

Ph: (860) 589-5593
Mr Oliver B Diaz, MD
46 Goodwin St,
Bristol, CT 06010-5807

Ph: (860) 589-5593

Reviews and Comments


Internal Medicine Doctors in Bristol, CT

Ronald S Green, MD
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Phone: 860-583-9252    Fax: 860-585-9848
Daniel Norman Smiley, MD
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Phone: 860-583-9252    Fax: 860-585-9848
Dr. Michael Owen Richards, MD
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Michael Stephen Ptaszynski, MD
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Phone: 860-314-6020    Fax: 860-314-6024
Dr. Robert C Debiase, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 25 Newell Rd, Suite D24, Bristol, CT 06010
Phone: 860-582-3235    Fax: 860-582-0692
Dr. Nandini Ravindra Menon, M.D
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 123 Maple St, Bristol, CT 06010
Phone: 860-584-8021    Fax: 860-584-9021
Christopher Wakem, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 44 Brewster Road, Hem/oncology Dept., Level A, Bristol, CT 06010
Phone: 860-585-3000    Fax: 860-585-3907

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.