Dr Robert S Greenfield, MD - Medicare Internal Medicine 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



Physician's Profile

Full NameDr Robert S Greenfield
GenderMale
SpecialityInternal Medicine - Cardiovascular Disease
Location18111 Brookhurst St # 5100, Fountain Valley, California
Accepts Medicare AssignmentsMedicare 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.
IdentifierTypeStateIssuer
1649307000NPI-NPPES
YYY492984YMedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal 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 NameUc Regents
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760430847
PECOS PAC ID: 7416869516
Enrollment ID: O20031118000906

News Archive

Alpha-hemolysin may play an unexpected role in UTIs

Researchers from the University of Utah have identified a process by which the most common types of urinary tract infection-causing bacteria are able to trigger bladder cell shedding and disable immune responses. According to this new study, published in the Jan. 19, 2012, issue of Cell Host & Microbe, α-hemolysin, a toxin secreted by many strains of Escherichia coli (E. coli), may play an important, unexpected role during both the establishment and persistence of urinary tract infections.

Researchers produce novel microparticles

A team of researchers of Karlsruhe Institute of Technology (KIT) and the University of Michigan/USA has produced novel microparticles, whose surface consists of three chemically different segments.

Healthy inflammation necessary to prevent metabolic diseases, study finds

Chronic tissue inflammation is typically associated with obesity and metabolic disease, but new research from UT-Southwestern Medical Center now finds that a level of "healthy" inflammation is necessary to prevent metabolic diseases, such as fatty liver.

Researchers develop new image sensors for 3-D endoscopes

The surgeon carefully guides the endoscope through the patient's nasal cavity to the operation zone. It is a delicate procedure for which the surgeon has to prepare in detail before commencing the actual intervention.

Read more Medical News

› Verified 7 days ago

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 AddressPractice 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

News Archive

Alpha-hemolysin may play an unexpected role in UTIs

Researchers from the University of Utah have identified a process by which the most common types of urinary tract infection-causing bacteria are able to trigger bladder cell shedding and disable immune responses. According to this new study, published in the Jan. 19, 2012, issue of Cell Host & Microbe, α-hemolysin, a toxin secreted by many strains of Escherichia coli (E. coli), may play an important, unexpected role during both the establishment and persistence of urinary tract infections.

Researchers produce novel microparticles

A team of researchers of Karlsruhe Institute of Technology (KIT) and the University of Michigan/USA has produced novel microparticles, whose surface consists of three chemically different segments.

Healthy inflammation necessary to prevent metabolic diseases, study finds

Chronic tissue inflammation is typically associated with obesity and metabolic disease, but new research from UT-Southwestern Medical Center now finds that a level of "healthy" inflammation is necessary to prevent metabolic diseases, such as fatty liver.

Researchers develop new image sensors for 3-D endoscopes

The surgeon carefully guides the endoscope through the patient's nasal cavity to the operation zone. It is a delicate procedure for which the surgeon has to prepare in detail before commencing the actual intervention.

Read more News

› Verified 7 days ago


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    

Find & Compare Providers Near You: Find and compare doctors, nursing homes, hospitals, and other health care providers in your area that accept Medicare. Get information like: Find a doctor or clinician that accepts Medicare near you.

Doctors and clinicians: Doctors and clinicians include doctors, clinicians and groups who are qualified to practice in many specialties. Each specialty focuses on certain parts of the body, periods of life, conditions, or primary care. The doctors, clinicians, and groups listed here typically work in an office or clinic setting. Also those who currently accept Medicare are included.

Hospitals: Find information about Medicare-certified hospitals and long-term care hospitals in your area, including Veterans Administration medical centers and military hospitals, across the country. Long-term care hospitals serve critically ill and medically complex patients who require extended hospital care.

Data provided: Information on www.medicareusa.org is built using open data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA).

© 2024 MedicareUsa. All rights reserved. Maintained by the Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services.