Dr John M O'brien, MD in Chicago, IL

Dr John M O'brien, MD is a medicare enrolled "Internal Medicine" physician in Chicago, Illinois. His current practice location is 1901 W Harrison St, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (312) 864-6000.

Dr John M O'brien is licensed to practice in Illinois (license number 036082069) 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 1376572891.

Contact Information

	Dr John M O'brien, MD
	1901 W Harrison St, Chicago, IL 60612-3714
	(312) 864-6000
	Not Available

Map and Direction

Physician's Profile

Full Name	Dr John M O'brien
Gender	Male
Speciality
Experience	Years
Location	1901 W Harrison St, Chicago, 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 John M O'brien attended and graduated from in

NPI Data:

NPI Number: 1376572891
Provider Enumeration Date: 06/30/2006
Last Update Date: 04/28/2021

Medicare PECOS Information:

PECOS PAC ID:
Enrollment ID:

Medical Identifiers

Medical identifiers for Dr John M O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1376572891	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	036082069 (Illinois)	Primary

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 John M O'brien 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 John M O'brien, MD 1901 W Harrison St, Chicago, IL 60612-3714 Ph: (312) 864-6000	Dr John M O'brien, MD 1901 W Harrison St, Chicago, IL 60612-3714 Ph: (312) 864-6000

Reviews and Comments

Internal Medicine Doctors in Chicago, IL

Dr. Sorin C Danciu, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 3134 N Clark St, Chicago, IL 60657 Phone: 773-880-9722
Anoopa A. Koshy, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 259 E Erie St Ste 2200, Chicago, IL 60611 Phone: 312-926-6000
William Edmond Gerardi, M.D. Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 3730 N Lake Shore Dr, Apartment 2a, Chicago, IL 60613 Phone: 773-244-3060
Suparna Dutta, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1700 W Van Buren St, Suite 500, Chicago, IL 60612 Phone: 312-942-4200 Fax: 312-942-3568
Alexandra Dumitrescu, Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 5841 S Maryland Ave, Chicago, IL 60637 Phone: 888-824-0200
Dr. Mitesh Mahesh Kabadi, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1725 W Harrison St Ste 1159, Chicago, IL 60612 Phone: 312-942-5020
Dr. Marta Batus, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1725 W Harrison St, Suite 809, Chicago, IL 60612 Phone: 312-563-2487 Fax: 312-942-3192

Dr John M O'brien, MD - Medicare in Chicago, IL