Dr Robert S Greenfield, MD in Fountain Valley, CA

Dr Robert S Greenfield, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Fountain Valley, California. His current practice location is 18111 Brookhurst St # 5100, Fountain Valley, California. You can reach out to his office (for appointments etc.) via phone at (714) 546-2238.

Dr Robert S Greenfield is licensed to practice in California (license number G29135) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1649307000.

Contact Information

	Dr Robert S Greenfield, MD
	18111 Brookhurst St # 5100, Fountain Valley, CA 92708-6728
	(714) 546-2238
	(714) 434-8145

Map and Direction

Physician's Profile

Full Name	Dr Robert S Greenfield
Gender	Male
Speciality	Internal Medicine - Cardiovascular Disease
Location	18111 Brookhurst St # 5100, Fountain Valley, California
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1649307000
Provider Enumeration Date: 02/27/2007
Last Update Date: 08/26/2019

Medicare PECOS Information:

PECOS PAC ID: 5991791394
Enrollment ID: I20101209000843

Medical Identifiers

Medical identifiers for Dr Robert S Greenfield such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1649307000	NPI	-	NPPES
YYY492984Y	Medicaid	CA

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RC0000X	Internal Medicine - Cardiovascular Disease	G29135 (California)	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. Dr Robert S Greenfield allows following entities to bill medicare on his behalf.

Entity Name	Uc Regents
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1760430847 PECOS PAC ID: 7416869516 Enrollment ID: O20031118000906

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 Robert S Greenfield 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 Robert S Greenfield, MD 18111 Brookhurst St # 5100, Fountain Valley, CA 92708-6728 Ph: (714) 546-2238	Dr Robert S Greenfield, MD 18111 Brookhurst St # 5100, Fountain Valley, CA 92708-6728 Ph: (714) 546-2238

Reviews and Comments

Internal Medicine Doctors in Fountain Valley, CA

Dr. Kristine Suzanne Olson Arthur, MD Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 11420 Warner Ave, Fountain Valley, CA 92708 Phone: 714-549-1300 Fax: 714-433-3100
Dr. Sajeet Singh Sawhney, M.D. Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 11100 Warner Ave, Suite 218, Fountain Valley, CA 92708 Phone: 714-641-9696 Fax: 714-641-9696
Dr. Jennifer L Wong, M.D. Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 18111 Brookhurst St Ste 5100, Fountain Valley, CA 92708 Phone: 714-546-2238 Fax: 714-434-8145
Dr. Sithu Lin, M.D. Cardiovascular Disease Medicare: Medicare Enrolled Practice Location: 11100 Warner Ave Ste 218, Fountain Valley, CA 92708 Phone: 714-641-9696
Kien-an Duong, MD Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 11420 Warner Ave, Fountain Valley, CA 92708 Phone: 714-549-1300 Fax: 714-433-3100
Mr. Satinder Swaroop, MD Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 11180 Warner Ave, Suite #353, Fountain Valley, CA 92708 Phone: 714-751-3540 Fax: 714-751-5626
Yu-ming Ni, MD Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 18111 Brookhurst St Ste 5100, Fountain Valley, CA 92708 Phone: 714-546-2238

Dr Robert S Greenfield, MD - Medicare Internal Medicine in Fountain Valley, CA