June S Peng, MD - Medicare Surgical Oncology in Walnut Creek, CA

June S Peng, MD is a medicare enrolled "Surgery - Surgical Oncology" physician in Walnut Creek, California. She went to Johns Hopkins University School Of Medicine and graduated in 2012 and has 12 years of diverse experience with area of expertise as Surgical Oncology. She is a member of the group practice John Muir Physician Network and her current practice location is 1479 Ygnacio Valley Rd Ste 200, Walnut Creek, California. You can reach out to her office (for appointments etc.) via phone at (925) 296-7340.

June S Peng is licensed to practice in California (license number 191994) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1124321252.

Contact Information

June S Peng, MD
1479 Ygnacio Valley Rd Ste 200,
Walnut Creek, CA 94598-2954
(925) 296-7340
Not Available

Map and Direction




Physician's Profile

Full NameJune S Peng
GenderFemale
SpecialitySurgical Oncology
Experience12 Years
Location1479 Ygnacio Valley Rd Ste 200, Walnut Creek, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • June S Peng attended and graduated from Johns Hopkins University School Of Medicine in 2012
  NPI Data:
  • NPI Number: 1124321252
  • Provider Enumeration Date: 12/12/2010
  • Last Update Date: 11/21/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 6608176623
  • Enrollment ID: I20231227000155

Medical Identifiers

Medical identifiers for June S Peng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124321252NPI-NPPES
1036594280001MedicaidPA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2086X0206XSurgery - Surgical Oncology MD468184 (Pennsylvania)Secondary
2086X0206XSurgery - Surgical Oncology 191994 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Milton S Hershey Medical CenterHershey, PAHospital
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital

Group Practice Association

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

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. June S Peng allows following entities to bill medicare on her behalf.
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameJohn Muir Physician Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841407665
PECOS PAC ID: 6608789813
Enrollment ID: O20031226000143
Entity NameUcsf Dept Of Surgery
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477627537
PECOS PAC ID: 7719886373
Enrollment ID: O20040102000839
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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. June S Peng 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
June S Peng, MD
1479 Ygnacio Valley Rd Ste 200,
Walnut Creek, CA 94598-2954

Ph: (925) 296-7340
June S Peng, MD
1479 Ygnacio Valley Rd Ste 200,
Walnut Creek, CA 94598-2954

Ph: (925) 296-7340

Reviews and Comments


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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.

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