Walter Gwang-up Park, MD - Medicare Gastroenterology in Stanford, CA

Walter Gwang-up Park, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Stanford, California. He went to Johns Hopkins University School Of Medicine and graduated in 2003 and has 21 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Stanford Health Care and his current practice location is 300 Pasteur Dr, Stanford, California. You can reach out to his office (for appointments etc.) via phone at (650) 723-4000.

Walter Gwang-up Park is licensed to practice in California (license number A88008) 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 1538355672.

Contact Information

Walter Gwang-up Park, MD
300 Pasteur Dr,
Stanford, CA 94305-2200
(650) 723-4000
Not Available



Physician's Profile

Full NameWalter Gwang-up Park
GenderMale
SpecialityGastroenterology
Experience21 Years
Location300 Pasteur Dr, Stanford, 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:
  • Walter Gwang-up Park attended and graduated from Johns Hopkins University School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1538355672
  • Provider Enumeration Date: 09/21/2007
  • Last Update Date: 04/16/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6406928522
  • Enrollment ID: I20080707000741

Medical Identifiers

Medical identifiers for Walter Gwang-up Park such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538355672NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A88008 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Stanford Health CareStanford, CAHospital
Stanford Health Care - ValleycarePleasanton, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Stanford Health Care67097974912572

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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. Walter Gwang-up Park allows following entities to bill medicare on his behalf.
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348

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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. Walter Gwang-up Park 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
Walter Gwang-up Park, MD
300 Pasteur Dr,
Stanford, CA 94305-2200

Ph: (650) 723-4000
Walter Gwang-up Park, MD
300 Pasteur Dr,
Stanford, CA 94305-2200

Ph: (650) 723-4000

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Internal Medicine Doctors in Stanford, CA

Prista Charuworn, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 300 Pasteur Dr, Alway Build M211, Mc 5187, Stanford, CA 94305
Phone: 650-723-6661    
Yu Kuang Lai, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Andrea Lorenze, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Drive, Lane 154, Stanford, CA 94305
Phone: 650-723-6661    Fax: 650-498-6205
Audra Horomanski, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    Fax: 650-498-6205
Meghan Brady Marmor, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Lauren Michelle Ulsh, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Ann M Chen, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, A149, Mc5202, Stanford, CA 94305
Phone: 650-725-3376    Fax: 650-723-8305

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