Dr Hennessey Tseng, MD - Medicare Cardiovascular Disease (cardiology) in Walnut Creek, CA

Dr Hennessey Tseng, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Walnut Creek, California. He went to Emory University School Of Medicine and graduated in 1995 and has 29 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice John Muir Physician Network and his current practice location is 1450 Treat Blvd, Suite 220b, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 937-1770.

Dr Hennessey Tseng is licensed to practice in California (license number G86069) 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 1003811746.

Contact Information

Dr Hennessey Tseng, MD
1450 Treat Blvd, Suite 220b,
Walnut Creek, CA 94597-2168
(925) 937-1770
(925) 937-0630



Physician's Profile

Full NameDr Hennessey Tseng
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience29 Years
Location1450 Treat Blvd, Walnut Creek, California
Accepts Medicare AssignmentsYes. 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 Hennessey Tseng attended and graduated from Emory University School Of Medicine in 1995
  NPI Data:
  • NPI Number: 1003811746
  • Provider Enumeration Date: 06/17/2005
  • Last Update Date: 08/11/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 2264434208
  • Enrollment ID: I20080728000347

Medical Identifiers

Medical identifiers for Dr Hennessey Tseng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003811746NPI-NPPES
P01474566OtherCARAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease G86069 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital
John Muir Medical Center - Concord CampusConcord, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
John Muir Physician Network6608789813464

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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 Hennessey Tseng allows following entities to bill medicare on his behalf.
Entity NameJohn Muir Physician Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841407665
PECOS PAC ID: 6608789813
Enrollment ID: O20031226000143

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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. Dr Hennessey Tseng 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 Hennessey Tseng, MD
Dept 34929, P.o. Box 39000,
San Francisco, CA 94139-0001

Ph: (925) 952-2828
Dr Hennessey Tseng, MD
1450 Treat Blvd, Suite 220b,
Walnut Creek, CA 94597-2168

Ph: (925) 937-1770

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Internal Medicine Doctors in Walnut Creek, CA

Dr. Joseph Patrick Henry, M.D.
Cardiovascular Disease
Medicare: May Accept Medicare Assignments
Practice Location: 1220 Rossmoor Pkwy, Walnut Creek, CA 94595
Phone: 925-947-3393    Fax: 925-947-3396
Mr. Ramin Khashayar, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1399 Ygnacio Valley Rd, Ste 14, Walnut Creek, CA 94598
Phone: 925-939-3050    Fax: 925-939-3057
Dr. Ali-reza Barmaki, M.D.
Cardiovascular Disease
Medicare: May Accept Medicare Assignments
Practice Location: 1220 Rossmoor Pkwy, Walnut Creek, CA 94595
Phone: 925-947-3393    Fax: 925-947-3396
Dr. Cynthia M. Mullen, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2637 Shadelands Dr, Walnut Creek, CA 94598
Phone: 925-322-2372    Fax: 925-322-6720
Mr. David Nathanson,
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 320 Lennon Ln, Walnut Creek, CA 94598
Phone: 925-906-2000    
Mark D Nathan, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 106 La Casa Via, #140, Walnut Creek, CA 94598
Phone: 925-274-2860    Fax: 925-932-4527

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