Dr Themistoklis J Nissirios, MD - Medicare Cardiovascular Disease (cardiology) in Monroe, NY

Dr Themistoklis J Nissirios, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Monroe, New York. He went to Rutgers R W Johnson Medical School (cam/new Bruns/pisc) and graduated in 2003 and has 21 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Valley Physician Services Pc and his current practice location is 855 State Route 17m, Monroe, New York. You can reach out to his office (for appointments etc.) via phone at (845) 703-6999.

Dr Themistoklis J Nissirios is licensed to practice in New York (license number 253483) 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 1194925370.

Contact Information

Dr Themistoklis J Nissirios, MD
855 State Route 17m,
Monroe, NY 10950-1600
(845) 703-6999
(845) 703-6297

Map and Direction




Physician's Profile

Full NameDr Themistoklis J Nissirios
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience21 Years
Location855 State Route 17m, Monroe, New York
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 Themistoklis J Nissirios attended and graduated from Rutgers R W Johnson Medical School (cam/new Bruns/pisc) in 2003
  NPI Data:
  • NPI Number: 1194925370
  • Provider Enumeration Date: 07/25/2007
  • Last Update Date: 10/12/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 1254425713
  • Enrollment ID: I20070915000009

Medical Identifiers

Medical identifiers for Dr Themistoklis J Nissirios such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194925370NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 253483 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Valley HospitalRidgewood, NJHospital
St Anthony Community HospitalWarwick, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Valley Physician Services Pc3577857333402

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 Themistoklis J Nissirios allows following entities to bill medicare on his behalf.
Entity NameValley Physician Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467815928
PECOS PAC ID: 3577857333
Enrollment ID: O20160802002824

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 Themistoklis J Nissirios 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 Themistoklis J Nissirios, MD
155 Crystal Run Rd,
Middletown, NY 10941-4028

Ph: (845) 703-6999
Dr Themistoklis J Nissirios, MD
855 State Route 17m,
Monroe, NY 10950-1600

Ph: (845) 703-6999

Reviews and Comments


Internal Medicine Doctors in Monroe, NY

Riaz Rahman, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 855 State Route 17m, Monroe, NY 10950
Phone: 845-703-6999    Fax: 845-703-6297
Dr. John Sigva,
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 475 State Route 17m, Monroe, NY 10950
Phone: 845-333-7830    Fax: 845-333-7475
Andreea A Rahman, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 855 State Route 17m, Monroe, NY 10950
Phone: 845-703-6999    Fax: 845-703-6297
Bhakti Shah, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 855 State Route 17m, Monroe, NY 10950
Phone: 845-703-6999    Fax: 845-703-6297
Dr. Libby Claire Greenberg, MD
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 49 Forest Rd, Monroe, NY 10950
Phone: 845-782-3242    Fax: 845-783-7133
Dawnette Massiel Urcuyo, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 475 State Route 17m, Monroe, NY 10950
Phone: 845-333-7846    Fax: 845-333-7475

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.