Rex Yung, MD - Medicare Pulmonary Disease in Oakland, CA

Rex Yung, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Oakland, California. He graduated from medical school in 1985 and has 39 years of diverse experience with area of expertise as Pulmonary Disease. He is a member of the group practice Sanford Bismarck, Inpatient Specialists Of California Pc and his current practice location is 1411 E 31st St, Oakland, California. You can reach out to his office (for appointments etc.) via phone at (510) 437-4800.

Rex Yung is licensed to practice in Maryland (license number D55665) 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 1750327128.

Contact Information

Rex Yung, MD
1411 E 31st St,
Oakland, CA 94602-1018
(510) 437-4800
Not Available

Map and Direction




Physician's Profile

Full NameRex Yung
GenderMale
SpecialityPulmonary Disease
Experience39 Years
Location1411 E 31st St, Oakland, 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:
  • Rex Yung graduated from medical school in 1985
  NPI Data:
  • NPI Number: 1750327128
  • Provider Enumeration Date: 06/22/2006
  • Last Update Date: 11/17/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 0446380992
  • Enrollment ID: I20201230001752

Medical Identifiers

Medical identifiers for Rex Yung such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750327128NPI-NPPES
880601200MedicaidMD
1750327128MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine G62106 (California)Secondary
207RC0200XInternal Medicine - Critical Care Medicine 1083 (Wisconsin)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 1083 (Wisconsin)Secondary
207RP1001XInternal Medicine - Pulmonary Disease D55665 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CAHospital
Adventist Health SonoraSonora, CAHospital
Alta Bates Summit Medical CenterOakland, CAHospital
Sanford Medical Center BismarckBismarck, NDHospital
St Mark's HospitalSalt lake city, UTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sanford Bismarck9739098575457
Inpatient Specialists Of California Pc3476864448309

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. Rex Yung allows following entities to bill medicare on his behalf.
Entity NameSt Alexius Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205868429
PECOS PAC ID: 8426960865
Enrollment ID: O20031104000146
Entity NameSanford Bismarck
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1811941172
PECOS PAC ID: 9739098575
Enrollment ID: O20031105000403

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. Rex Yung 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
Rex Yung, MD
Po Box 64264,
Baltimore, MD 21264-4264

Ph: (410) 955-3467
Rex Yung, MD
1411 E 31st St,
Oakland, CA 94602-1018

Ph: (510) 437-4800

Reviews and Comments


Internal Medicine Doctors in Oakland, CA

Ms. Samira Yasmeen Ahmed, MD
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 1411 E 31st St, Oakland, CA 94602
Phone: 510-437-4800    
Jeeven Brah, M.D.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 350 Hawthorne Ave, Room 2346, Oakland, CA 94609
Phone: 510-869-6883    
Sanya Wadhwa, M.D.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 300 Frank H Ogawa Plz Ste 355, Oakland, CA 94612
Phone: 510-444-3297    Fax: 510-444-6421
Michael Uzoma Ohabughiro, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1411 E 31st St Fl 2, Oakland, CA 94602
Phone: 510-437-5039    Fax: 510-535-7313
Dr. Omair Syed, MD
Pulmonary Disease
Medicare: Not Enrolled in Medicare
Practice Location: 1411 E 31st Street, 2nd Flr A2, Oakland, CA 94602
Phone: 510-437-5039    
Lisha Lynne Wilson, MD
Pulmonary Disease
Medicare: Medicare Enrolled
Practice Location: 400 29th St, Ste 501, Oakland, CA 94609
Phone: 510-268-1800    Fax: 510-268-1803
Chee C. Chow, MD
Pulmonary Disease
Medicare: Not Enrolled in Medicare
Practice Location: 275 W Macarthur, Oakland, CA 94611
Phone: 510-752-1000    

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).

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