Constantine Yiachos, MD - Medicare Gastroenterology in Staten Island, NY

Constantine Yiachos, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Staten Island, New York. He went to State University Of New York Downstate Medical Center and graduated in 1985 and has 39 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Icahn School Of Medicine At Mount Sinai and his current practice location is 129 Slosson Ave, Staten Island, New York. You can reach out to his office (for appointments etc.) via phone at (718) 720-5928.

Constantine Yiachos is licensed to practice in New York (license number 172409) 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 1063588127.

Contact Information

Constantine Yiachos, MD
129 Slosson Ave,
Staten Island, NY 10314-2522
(718) 720-5928
(718) 720-6706

Map and Direction




Physician's Profile

Full NameConstantine Yiachos
GenderMale
SpecialityGastroenterology
Experience39 Years
Location129 Slosson Ave, Staten Island, 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:
  • Constantine Yiachos attended and graduated from State University Of New York Downstate Medical Center in 1985
  NPI Data:
  • NPI Number: 1063588127
  • Provider Enumeration Date: 11/28/2006
  • Last Update Date: 11/16/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2264500354
  • Enrollment ID: I20081015000408

Medical Identifiers

Medical identifiers for Constantine Yiachos such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063588127NPI-NPPES
100013461OtherMEDICARE RAILROAD
CY2409OtherATLANTIS
7838085OtherAETNA
100109150502OtherAMERICHOICE
2C3244OtherHEALTHNET
172409OtherHIP
OS121OtherOXFORD
0076533OtherGHI
169907OtherELDERPLAN
78984OtherGHI HMO
CYO29F1510OtherEMPIRE BLUE CROSS BLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 172409 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Richmond University Medical CenterStaten island, NYHospital
Staten Island University HospitalStaten island, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Icahn School Of Medicine At Mount Sinai488094595518

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. Constantine Yiachos allows following entities to bill medicare on his behalf.
Entity NameAmboy Medical Practice Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700037975
PECOS PAC ID: 2860538170
Enrollment ID: O20090930000024
Entity NameIcahn School Of Medicine At Mount Sinai
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255882734
PECOS PAC ID: 5193007581
Enrollment ID: O20170119001351
Entity NameIcahn School Of Medicine At Mount Sinai
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457867707
PECOS PAC ID: 4880945955
Enrollment ID: O20180928002222

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. Constantine Yiachos 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
Constantine Yiachos, MD
129 Slosson Ave,
Staten Island, NY 10314-2522

Ph: (718) 720-5928
Constantine Yiachos, MD
129 Slosson Ave,
Staten Island, NY 10314-2522

Ph: (718) 720-5928

Reviews and Comments


Internal Medicine Doctors in Staten Island, NY

Liliane Sarkis Deeb, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 4106 Hylan Blvd, Staten Island, NY 10308
Phone: 718-226-7855    Fax: 718-227-5814
Deepak Vadada, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1050 Clove Rd, Staten Island, NY 10301
Phone: 718-816-6440    Fax: 718-816-3611
Dr. Samantha Maria Lee, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 475 Seaview Ave, Staten Island, NY 10305
Phone: 718-226-9510    Fax: 718-226-3473
Dr. Jean Chalhoub, M.D
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 475 Seaview Avenue, Department Of Internal Medicine, Staten Island, NY 10305
Phone: 718-226-8855    
Dr. Gustave Stephen Drivas, M.D.,
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 5405 Hylan Blvd, Staten Island, NY 10312
Phone: 718-948-3890    Fax: 718-948-3961
Dr. Beatrice Nogueira, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 475 Seaview Ave, Staten Island, NY 10305
Phone: 718-226-6902    Fax: 718-226-6844
Dr. Felicia Tenedios, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1200 South Ave Ste 204, Staten Island, NY 10314
Phone: 718-447-0055    Fax: 718-876-5212

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.