Dr Courtney Ann O'brien, DO in Simi Valley, CA

Dr Courtney Ann O'brien, DO is a medicare enrolled "Internal Medicine - Rheumatology" physician in Simi Valley, California. She went to Nova Southeastern College Of Osteo Medicine and graduated in 2017 and has 7 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice The Regents Of The University Of California and her current practice location is 2655 1st St Ste 380, Simi Valley, California. You can reach out to her office (for appointments etc.) via phone at (805) 583-7640.

Dr Courtney Ann O'brien is licensed to practice in California (license number 20A18469) 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 1609396514.

Contact Information

	Dr Courtney Ann O'brien, DO
	2655 1st St Ste 380, Simi Valley, CA 93065-1551
	(805) 583-7640
	(805) 583-7641

Map and Direction

Physician's Profile

Full Name	Dr Courtney Ann O'brien
Gender	Female
Speciality	Internal Medicine
Experience	7 Years
Location	2655 1st St Ste 380, Simi Valley, California
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:

Dr Courtney Ann O'brien attended and graduated from Nova Southeastern College Of Osteo Medicine in 2017

NPI Data:

NPI Number: 1609396514
Provider Enumeration Date: 06/21/2017
Last Update Date: 07/29/2022

Medicare PECOS Information:

PECOS PAC ID: 9537430020
Enrollment ID: I20220616001464

Medical Identifiers

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

Identifier	Type	State	Issuer
1609396514	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RR0500X	Internal Medicine - Rheumatology	20A18469 (California)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Ronald Reagan Ucla Medical Center	Los angeles, CA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
The Regents Of The University Of California	1355248584	1177

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 Courtney Ann O'brien allows following entities to bill medicare on her behalf.

Entity Name	The Regents Of The University Of California
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1235107566 PECOS PAC ID: 1355248584 Enrollment ID: O20031223000439

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 Courtney Ann 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 Courtney Ann O'brien, DO 5767 W Century Blvd Suite 400, Los Angeles, CA 90095-5631 Ph: (310) 301-8707	Dr Courtney Ann O'brien, DO 2655 1st St Ste 380, Simi Valley, CA 93065-1551 Ph: (805) 583-7640

Reviews and Comments

Internal Medicine Doctors in Simi Valley, CA

Cho May, M.D Rheumatology Medicare: Accepting Medicare Assignments Practice Location: 2975 Sycamore Dr, Simi Valley, CA 93065 Phone: 626-944-5144
Dr. Varol Serdar Togay, M.D. Rheumatology Medicare: Accepting Medicare Assignments Practice Location: 1687 Erringer Rd, Suite 105, Simi Valley, CA 93065 Phone: 805-584-9293
Dr. Anthony Thong Phan, M.D. Rheumatology Medicare: Accepting Medicare Assignments Practice Location: 1189 Swallow Ln Ste 110, Simi Valley, CA 93065 Phone: 805-526-3213 Fax: 805-583-5929
Qurat-ul-ain Ahmed Rashid, MD Rheumatology Medicare: Accepting Medicare Assignments Practice Location: 2975 Sycamore Dr, United Inpatient Consultants, Simi Valley, CA 93065 Phone: 805-522-2500
Dr. Gurdip Singh Flora, M.D Rheumatology Medicare: Accepting Medicare Assignments Practice Location: 1172 Swallow Lane, Simi Valley, CA 93065 Phone: 805-583-4111 Fax: 805-583-2041
Lucia Loredana Dattoma, MD Rheumatology Medicare: Accepting Medicare Assignments Practice Location: 2655 1st St Ste 360, Simi Valley, CA 93065 Phone: 805-583-7640 Fax: 805-583-7641
Dr. Melissa Jill Cohen, M.D. Rheumatology Medicare: Accepting Medicare Assignments Practice Location: 2750 Sycamore Dr, 201, Simi Valley, CA 93065 Phone: 805-583-0110

Dr Courtney Ann O'brien, DO - Medicare Internal Medicine in Simi Valley, CA