William Wung, MD - Medicare Cardiovascular Disease (cardiology) in Brentwood, CA

William Wung, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Brentwood, California. He went to Saint Louis University School Of Medicine and graduated in 2015 and has 9 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 2400 Balfour Rd Ste 201, Brentwood, California. You can reach out to his office (for appointments etc.) via phone at (925) 308-8120.

William Wung is licensed to practice in California (license number A145714) 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 1407240096.

Contact Information

William Wung, MD
2400 Balfour Rd Ste 201,
Brentwood, CA 94513-4952
(925) 308-8120
(925) 513-2650

Map and Direction




Physician's Profile

Full NameWilliam Wung
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience9 Years
Location2400 Balfour Rd Ste 201, Brentwood, 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:
  • William Wung attended and graduated from Saint Louis University School Of Medicine in 2015
  NPI Data:
  • NPI Number: 1407240096
  • Provider Enumeration Date: 03/23/2015
  • Last Update Date: 08/23/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0143597864
  • Enrollment ID: I20190430000190

Medical Identifiers

Medical identifiers for William Wung such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1407240096NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease A145714 (California)Primary

Medical Facilities Affiliation

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

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
John Muir Physician Network6608789813442

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. William Wung allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameJohn Muir Physician Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841407665
PECOS PAC ID: 6608789813
Enrollment ID: O20031226000143
Entity NameJohn Muir Trauma Physicians Billing Service
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093864837
PECOS PAC ID: 3476542515
Enrollment ID: O20050420001452

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. William Wung 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
William Wung, MD
1450 Treat Blvd # 300,
Walnut Creek, CA 94597-2168

Ph: (925) 952-2828
William Wung, MD
2400 Balfour Rd Ste 201,
Brentwood, CA 94513-4952

Ph: (925) 308-8120

Reviews and Comments


Internal Medicine Doctors in Brentwood, CA

Matthew Campbell, M.D.
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Phone: 925-753-1986    
Joline Heo, M.D.
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Yogesh Kumar Trehan, M.D.
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Ms. Sherry Reynolds Albrink, M.D.
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Walter Savage, MD
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Practice Location: 350 John Muir Pkwy, Suite 285, Brentwood, CA 94513
Phone: 925-513-2646    Fax: 925-513-2650
Dr. Ramakrishna P. Gollapudi, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 350 John Muir Pkwy Ste 175, Brentwood, CA 94513
Phone: 925-756-3400    Fax: 510-506-7727

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.