Olga Vasylyeva, MD in Greenwich, CT - Medicare Infectious Disease

Olga Vasylyeva, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Greenwich, Connecticut. She graduated from medical school in 2002 and has 24 years of diverse experience with area of expertise as Infectious Disease. She is a member of the group practice Rochester General Hospital and her current practice location is 5 Perryridge Rd, Greenwich, Connecticut. You can reach out to her office (for appointments etc.) via phone at (203) 869-8838.

Olga Vasylyeva is licensed to practice in New York (license number 271226) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1235455072.

Contact Information

	Olga Vasylyeva, MD
	5 Perryridge Rd, Greenwich, CT 06830-4608
	(203) 869-8838
	Not Available

Map and Direction

Physician's Profile

Full Name	Olga Vasylyeva
Gender	Female
Speciality	Infectious Disease
Experience	24 Years
Location	5 Perryridge Rd, Greenwich, Connecticut
Accepts Medicare Assignments	Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Olga Vasylyeva graduated from medical school in 2002

NPI Data:

NPI Number: 1235455072
Provider Enumeration Date: 04/19/2010
Last Update Date: 06/25/2026

Medicare PECOS Information:

PECOS PAC ID: 9335453059
Enrollment ID: I20150807014688

Medical Identifiers

Medical identifiers for Olga Vasylyeva such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1235455072	NPI	-	NPPES
04164274	Medicaid	NY

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RI0200X	Internal Medicine - Infectious Disease	271226 (New York)	Primary
207RI0200X	Internal Medicine - Infectious Disease	84050 (Connecticut)	Secondary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Rochester General Hospital	Rochester, NY	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Rochester General Hospital	0244149474	1206

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. Olga Vasylyeva allows following entities to bill medicare on her behalf.

Entity Name	Rochester General Hospital
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1356412712 PECOS PAC ID: 0244149474 Enrollment ID: O20031121000644

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. Olga Vasylyeva 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
Olga Vasylyeva, MD 5 Perryridge Rd, Greenwich, CT 06830-4608 Ph: (203) 869-8838	Olga Vasylyeva, MD 5 Perryridge Rd, Greenwich, CT 06830-4608 Ph: (203) 869-8838

Reviews and Comments

Internal Medicine Doctors in Greenwich, CT

Dr. Nicholas Harrison Browning, M.D. Infectious Disease Medicare: Not Enrolled in Medicare Practice Location: 75 Holly Hill Ln, Greenwich, CT 06830 Phone: 203-863-3400
Francesca Montanari, MD Infectious Disease Medicare: Accepting Medicare Assignments Practice Location: 77 Lafayette Pl, Greenwich, CT 06830 Phone: 203-863-3700
Cheng-hung Tai, Infectious Disease Medicare: Accepting Medicare Assignments Practice Location: 15 Valley Dr Fl 3, Greenwich, CT 06831 Phone: 917-497-7661
Dr. Steven Smith, M.D. Infectious Disease Medicare: Accepting Medicare Assignments Practice Location: 5 Perryridge Rd, Greenwich, CT 06830 Phone: 203-863-3911
Dr. Marcelyn Carol Molloy, MD Infectious Disease Medicare: Medicare Enrolled Practice Location: 75 Holly Hill Ln, Greenwich, CT 06830 Phone: 203-869-6960 Fax: 203-869-5103
Dr. Alexander Delvecchio, M.D. Infectious Disease Medicare: Accepting Medicare Assignments Practice Location: 55 Holly Hill Ln, Suite 240, Greenwich, CT 06830 Phone: 203-863-4210 Fax: 203-622-1872
Dr. Sunil Rana, MD Infectious Disease Medicare: Accepting Medicare Assignments Practice Location: 49 Lake Ave Ste 2, Greenwich, CT 06830 Phone: 203-869-7704 Fax: 203-661-8596

Olga Vasylyeva, MD - Medicare Infectious Disease in Greenwich, CT