Dr Alexander Geng, MD - Medicare Radiation Oncology in San Francisco, CA

Dr Alexander Geng, MD is a medicare enrolled "Radiology - Radiation Oncology" physician in San Francisco, California. He went to University Of California, San Diego School Of Medicine and graduated in 2010 and has 14 years of diverse experience with area of expertise as Radiation Oncology. His current practice location is 900 Hyde St, Level B Department Of Radiation Oncology, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 353-6420.

Dr Alexander Geng is licensed to practice in California (license number A117696) 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 1790066090.

Contact Information

Dr Alexander Geng, MD
900 Hyde St, Level B Department Of Radiation Oncology,
San Francisco, CA 94109
(415) 353-6420
Not Available

Map and Direction




Physician's Profile

Full NameDr Alexander Geng
GenderMale
SpecialityRadiation Oncology
Experience14 Years
Location900 Hyde St, San Francisco, 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:
  • Dr Alexander Geng attended and graduated from University Of California, San Diego School Of Medicine in 2010
  NPI Data:
  • NPI Number: 1790066090
  • Provider Enumeration Date: 08/31/2011
  • Last Update Date: 03/17/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 3173799616
  • Enrollment ID: I20120104000359

Medical Identifiers

Medical identifiers for Dr Alexander Geng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1790066090NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A117696 (California)Secondary
2085R0203XRadiology - Therapeutic Radiology A117696 (California)Secondary
2085R0001XRadiology - Radiation Oncology A117696 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Saint Francis Memorial HospitalSan francisco, CAHospital
Chinese HospitalSan francisco, CAHospital
California Pacific Medical Center- Van Ness CampusSan francisco, CAHospital

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. Dr Alexander Geng allows following entities to bill medicare on his behalf.
Entity NameMarin Hospitalist Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023041753
PECOS PAC ID: 1456257146
Enrollment ID: O20031211001139
Entity NameNorthern California Radiation Therapists & Oncologists Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1720069891
PECOS PAC ID: 9638124977
Enrollment ID: O20050318000677
Entity NameAlexander Geng Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992394811
PECOS PAC ID: 0143629105
Enrollment ID: O20210524001472

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. Dr Alexander Geng 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
Dr Alexander Geng, MD
900 Hyde St, Level B Department Of Radiation Oncology,
San Francisco, CA 94109

Ph: (415) 353-6420
Dr Alexander Geng, MD
900 Hyde St, Level B Department Of Radiation Oncology,
San Francisco, CA 94109

Ph: (415) 353-6420

Reviews and Comments


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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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