Stephen In-sun Ryu, MD - Medicare Neurosurgery in Stanford, CA

Stephen In-sun Ryu, MD is a medicare enrolled "Neurological Surgery" physician in Stanford, California. He went to University Of California, San Diego School Of Medicine and graduated in 1999 and has 25 years of diverse experience with area of expertise as Neurosurgery. He is a member of the group practice Sutter Bay Medical Foundation 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.

Stephen In-sun Ryu is licensed to practice in California (license number A72659) 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 1134153505.

Contact Information

Stephen In-sun Ryu, MD
300 Pasteur Dr,
Stanford, CA 94305-2200
(650) 723-4000
Not Available



Physician's Profile

Full NameStephen In-sun Ryu
GenderMale
SpecialityNeurosurgery
Experience25 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:
  • Stephen In-sun Ryu attended and graduated from University Of California, San Diego School Of Medicine in 1999
  NPI Data:
  • NPI Number: 1134153505
  • Provider Enumeration Date: 07/10/2006
  • Last Update Date: 04/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 8628072857
  • Enrollment ID: I20060831000128

Medical Identifiers

Medical identifiers for Stephen In-sun Ryu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134153505NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207T00000XNeurological Surgery A72659 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sequoia HospitalRedwood city, CAHospital
Peninsula Medical CenterBurlingame, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sutter Bay Medical Foundation42845387782941

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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. Stephen In-sun Ryu 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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Entity NameSutter Bay Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013950807
PECOS PAC ID: 4284538778
Enrollment ID: O20031125000909

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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. Stephen In-sun Ryu 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
Stephen In-sun Ryu, MD
325 Distel Cir,
Los Altos, CA 94022-1408

Ph: (650) 853-2919
Stephen In-sun Ryu, MD
300 Pasteur Dr,
Stanford, CA 94305-2200

Ph: (650) 723-4000

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Neurological Surgery Doctors in Stanford, CA

Dr. Jamshid Ghajar, MD PHD
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Dr. Kumar Abhinav, BSC MBBS, FRCS(SN)
Neurological Surgery
Medicare: Medicare Enrolled
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-721-1035    
Dr. Hubert Tsun-yin Lee, MD
Neurological Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 1201 Welch Road, Stanford, CA 94305
Phone: 650-725-5562    
Tene Aneka Cage, MD
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Dr. Judith Murovic, M.D.
Neurological Surgery
Medicare: Medicare Enrolled
Practice Location: 300 Pasteur Dr, R-201 Edwards Building, Stanford, CA 94305
Phone: 650-498-6971    Fax: 650-723-7813
Ramon Navarro Balbuena, MD
Neurological Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 300 Pasteur Dr # R209, Stanford, CA 94305
Phone: 650-723-5575    Fax: 650-723-7815
Dr. Katherine Elizabeth Wagner, MD
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    

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