Gregory George Machiko, MD - Medicare Gastroenterology in Canonsburg, PA

Gregory George Machiko, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Canonsburg, Pennsylvania. He went to Jefferson Medical College Of Thomas Jefferson University 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 Allegheny Clinic and his current practice location is 161 Waterdam Road, Suite 120, Canonsburg, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (412) 359-8900.

Gregory George Machiko is licensed to practice in Pennsylvania (license number MD036665E) 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 1831191618.

Contact Information

Gregory George Machiko, MD
161 Waterdam Road, Suite 120,
Canonsburg, PA 15317-2472
(412) 359-8900
(412) 359-8977

Map and Direction




Physician's Profile

Full NameGregory George Machiko
GenderMale
SpecialityGastroenterology
Experience39 Years
Location161 Waterdam Road, Canonsburg, Pennsylvania
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:
  • Gregory George Machiko attended and graduated from Jefferson Medical College Of Thomas Jefferson University in 1985
  NPI Data:
  • NPI Number: 1831191618
  • Provider Enumeration Date: 08/11/2005
  • Last Update Date: 11/18/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 0244214344
  • Enrollment ID: I20040916000310

Medical Identifiers

Medical identifiers for Gregory George Machiko such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1831191618NPI-NPPES
103517173MedicaidPA
10931502OtherCAQH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD036665E (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Canonsburg General HospitalCanonsburg, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Allegheny Clinic53956495861959

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. Gregory George Machiko allows following entities to bill medicare on his behalf.
Entity NameAllegheny Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073081493
PECOS PAC ID: 5395649586
Enrollment ID: O20040310000602

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. Gregory George Machiko 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
Gregory George Machiko, MD
161 Waterdam Road, Suite 120,
Canonsburg, PA 15317-2472

Ph: (412) 359-8900
Gregory George Machiko, MD
161 Waterdam Road, Suite 120,
Canonsburg, PA 15317-2472

Ph: (412) 359-8900

Reviews and Comments


Internal Medicine Doctors in Canonsburg, PA

John F Smith Jr., MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 161 Waterdam Rd Apt 120, Canonsburg, PA 15317
Phone: 412-359-8900    Fax: 412-359-8977
Elaine L Goldhammer, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 100 Medical Blvd, Canonsburg, PA 15317
Phone: 412-359-3030    Fax: 412-359-3060
Euhan John Lee, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 100 Medical Blvd, Canonsburg, PA 15317
Phone: 724-873-5934    Fax: 724-873-5954
Dr. Michael Grimes, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1900 Waterdam Plaza Dr Ste 2, Canonsburg, PA 15317
Phone: 724-941-7490    Fax: 724-941-5231
Elina Salem, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 100 Medical Blvd, Canonsburg, PA 15317
Phone: 412-359-3030    
Dr. Patricio Andres Sanchez-cueva, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1447 Network Dr, Canonsburg, PA 15317
Phone: 570-495-0408    
Yadavendra S. Rajawat, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 160 Gallery Dr, Canonsburg, PA 15317
Phone: 724-260-7400    Fax: 724-260-7410

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.