David S Duffy, MD - Medicare Emergency Medicine in Greenbrae, CA

David S Duffy, MD is a medicare enrolled "Emergency Medicine" physician in Greenbrae, California. His current practice location is 250 Bon Air Rd, Greenbrae, California. You can reach out to his office (for appointments etc.) via phone at (415) 925-7000.

David S Duffy is licensed to practice in California (license number G71879) 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 1861414203.

Contact Information

David S Duffy, MD
250 Bon Air Rd,
Greenbrae, CA 94904-1702
(415) 925-7000
Not Available



Physician's Profile

Full NameDavid S Duffy
GenderMale
SpecialityEmergency Medicine
Location250 Bon Air Rd, Greenbrae, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1861414203
  • Provider Enumeration Date: 07/24/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 7517046857
  • Enrollment ID: I20080512000358

Medical Identifiers

Medical identifiers for David S Duffy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861414203NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine G71879 (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. David S Duffy allows following entities to bill medicare on his behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520

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Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548667843
PECOS PAC ID: 6103739131
Enrollment ID: O20040121000458

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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. David S Duffy 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
David S Duffy, MD
2100 Powell St,
Emeryville, CA 94608-1826

Ph: (510) 350-2600
David S Duffy, MD
250 Bon Air Rd,
Greenbrae, CA 94904-1702

Ph: (415) 925-7000

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Second-quarter fiscal 2010 results announced by STERIS

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Emergency Medicine Doctors in Greenbrae, CA

Arthur C Cohn, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 250 Bon Air Rd, Greenbrae, CA 94904
Phone: 415-925-7000    
Jeffrey D Weitzman,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 250 Bon Air Rd, Greenbrae, CA 94904
Phone: 415-925-7000    
Tami Lee Gash-kim, M.D
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 250 Bon Air Rd, Greenbrae, CA 94904
Phone: 415-925-7000    
Dr. William Lockwood Teufel, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 250 Bon Air Rd, Box 8010, Greenbrae, CA 94904
Phone: 415-925-7200    Fax: 415-925-7219
Alan J Spain, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 250 Bon Air Rd, Greenbrae, CA 94904
Phone: 415-925-7000    
Lara K Kulchycki, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 250 Bon Air Rd, Greenbrae, CA 94904
Phone: 415-925-7000    
Andrew E Solomon,
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 250 Bon Air Rd, Greenbrae, CA 94904
Phone: 415-925-7000    

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