Dr Marc I Oster, PSYD in Deerfield, IL - Medicare Clinical Psychologist Provider

Dr Marc I Oster, PSYD is a medicare enrolled "Psychologist" provider in Deerfield, Illinois. He graduated from medical school in 1986 and has 39 years of diverse experience with area of expertise as Clinical Psychologist. He is a member of the group practice Crosswinds Center For Personal And Professional Development, Pllc and his current practice location is 707 Lake Cook Rd Ste 120, Deerfield, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 604-1593.

Dr Marc I Oster is licensed to practice in Illinois (license number ) 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 1114069093.

Contact Information

	Dr Marc I Oster, PSYD
	707 Lake Cook Rd Ste 120, Deerfield, IL 60015-4909
	(847) 604-1593
	(847) 579-1055

Map and Direction

Healthcare Provider's Profile

Full Name	Dr Marc I Oster
Gender	Male
Speciality	Clinical Psychologist
Experience	39 Years
Location	707 Lake Cook Rd Ste 120, Deerfield, Illinois
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:

Dr Marc I Oster graduated from medical school in 1986

NPI Data:

NPI Number: 1114069093
Provider Enumeration Date: 02/13/2007
Last Update Date: 09/11/2025

Medicare PECOS Information:

PECOS PAC ID: 2769549633
Enrollment ID: I20090319000499

Medical Identifiers

Medical identifiers for Dr Marc I Oster such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1114069093	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
103TC0700X	Psychologist - Clinical	(Illinois)	Secondary
103TH0100X	Psychologist - Health Service	(Illinois)	Secondary
103T00000X	Psychologist	(Illinois)	Primary

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Crosswinds Center For Personal And Professional Development, Pllc	2365790516	3

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 Marc I Oster allows following entities to bill medicare on his behalf.

Entity Name	Proactive Behavioral Services, Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1043437049 PECOS PAC ID: 7618048950 Enrollment ID: O20080614000036

Entity Name	Landstrom Neuropsychological Center Pc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1255707642 PECOS PAC ID: 5294015475 Enrollment ID: O20161205001479

Entity Name	Crosswinds Center For Personal And Professional Development, Pllc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1811412166 PECOS PAC ID: 2365790516 Enrollment ID: O20180803000343

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 Marc I Oster 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
Dr Marc I Oster, PSYD 1954 First St #103, Highland Park, IL 60035-3104 Ph: (847) 604-1593	Dr Marc I Oster, PSYD 707 Lake Cook Rd Ste 120, Deerfield, IL 60015-4909 Ph: (847) 604-1593

Reviews and Comments

Psychologist in Deerfield, IL

Ramzia Duszynski, Psychologist Medicare: Not Enrolled in Medicare Practice Location: 745 Jonquil Ter, Deerfield, IL 60015 Phone: 847-317-9009
Dr. Adam A Levin, PSY.D. Psychologist Medicare: Not Enrolled in Medicare Practice Location: 770 Lake Cook Rd Ste 250, Deerfield, IL 60015 Phone: 847-267-0001
Mary E Halpin, PHD Psychologist Medicare: Accepting Medicare Assignments Practice Location: 420 Lake Cook Rd, Suite 109, Deerfield, IL 60015 Phone: 847-317-1133
Melanie Joy Nadell, PH.D. Psychologist Medicare: Medicare Enrolled Practice Location: 49 S Waukegan Rd, Deerfield, IL 60015 Phone: 847-425-6400
Dr. Michelle A. Epstein, PH.D. Psychologist Medicare: Not Enrolled in Medicare Practice Location: 155 N Pfingsten Rd Ste 350, Deerfield, IL 60015 Phone: 847-702-8777
Dr. Carol Oster, PSY.D. Psychologist Medicare: Not Enrolled in Medicare Practice Location: 770 Lake-cook Road, Suite 250, Deerfield, IL 60015 Phone: 847-267-0001 Fax: 847-267-0002

Dr Marc I Oster, PSYD - Medicare Psychologist in Deerfield, IL