Mr Mark Stephen St Marie, MD in Williamsville, NY

Mr Mark Stephen St Marie, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Williamsville, New York. He graduated from medical school in 1976 and has 49 years of diverse experience with area of expertise as Gastroenterology. His current practice location is 111 N Maplemere Rd Ste 200, Williamsville, New York. You can reach out to his office (for appointments etc.) via phone at (716) 626-2644.

Mr Mark Stephen St Marie is licensed to practice in New York (license number 136312) 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 1629150792.

Contact Information

	Mr Mark Stephen St Marie, MD
	111 N Maplemere Rd Ste 200, Williamsville, NY 14221-3182
	(716) 626-2644
	Not Available

Map and Direction

Physician's Profile

Full Name	Mr Mark Stephen St Marie
Gender	Male
Speciality	Gastroenterology
Experience	49 Years
Location	111 N Maplemere Rd Ste 200, Williamsville, New York
Accepts Medicare Assignments	Yes. 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 Mark Stephen St Marie graduated from medical school in 1976

NPI Data:

NPI Number: 1629150792
Provider Enumeration Date: 10/19/2006
Last Update Date: 08/27/2024

Medicare PECOS Information:

PECOS PAC ID: 2567448822
Enrollment ID: I20120223000556

Medical Identifiers

Medical identifiers for Mr Mark Stephen St Marie such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1629150792	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RG0100X	Internal Medicine - Gastroenterology	136312 (New York)	Primary

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 Mark Stephen St Marie allows following entities to bill medicare on his behalf.

Entity Name	Mercy Hospital Of Buffalo
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1164464921 PECOS PAC ID: 8729991666 Enrollment ID: O20040702001253

Entity Name	Dr Mark S St Marie Physician Pllc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1346797354 PECOS PAC ID: 2769760610 Enrollment ID: O20161027000037

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 Mark Stephen St Marie 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 Address	Practice Location Address
Mr Mark Stephen St Marie, MD 111 N Maplemere Rd Ste 200, Williamsville, NY 14221-3182 Ph: (716) 626-2644	Mr Mark Stephen St Marie, MD 111 N Maplemere Rd Ste 200, Williamsville, NY 14221-3182 Ph: (716) 626-2644

Reviews and Comments

Internal Medicine Doctors in Williamsville, NY

Maria Kontos, DO Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 325 Essjay Rd, Williamsville, NY 14221 Phone: 716-656-4463
Dr. Anderson Ka Ho Lai, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1540 Maple Rd, Williamsville, NY 14221 Phone: 716-568-3514
Colleen Klos, Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1540 Maple Rd, Williamsville, NY 14221 Phone: 716-568-3514
Dawn Patricia Hrab, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1835 Maple Rd, Williamsville, NY 14221 Phone: 716-634-5410 Fax: 716-634-0430
Cheri A Gorski-suhr, RPAC Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 825 Wehrle Drive, Cardiology Group Of Western New York,pc, Williamsville, NY 14221 Phone: 716-634-3243 Fax: 716-634-1930
Yijun Cheng, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 295 Essjay Rd, Williamsville, NY 14221 Phone: 716-630-1048
Mr. Martin Neal Mango, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1825 Maple Rd, Williamsville, NY 14221 Phone: 716-631-0834 Fax: 716-631-0880

Mr Mark Stephen St Marie, MD - Medicare Gastroenterology in Williamsville, NY