Dr Gary D Guo, MD - Medicare Internal Medicine in West Covina, CA

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Dr Gary D Guo, MD is a medicare enrolled "Hospitalist" physician in West Covina, California. He graduated from medical school in 1996 and has 28 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Southern California Hospitalist Network Medical Group Inc and his current practice location is 1115 S Sunset Ave, West Covina, California. You can reach out to his office (for appointments etc.) via phone at (626) 962-4011.

Dr Gary D Guo is licensed to practice in California (license number A116079) 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 1144573288.

Contact Information

Dr Gary D Guo, MD
1115 S Sunset Ave,
West Covina, CA 91790-3940
(626) 962-4011
Not Available

Map and Direction




Physician's Profile

Full NameDr Gary D Guo
GenderMale
SpecialityInternal Medicine
Experience28 Years
Location1115 S Sunset Ave, West Covina, 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 Gary D Guo graduated from medical school in 1996
  NPI Data:
  • NPI Number: 1144573288
  • Provider Enumeration Date: 10/25/2012
  • Last Update Date: 07/19/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 5395999882
  • Enrollment ID: I20130211000066

Medical Identifiers

Medical identifiers for Dr Gary D Guo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144573288NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist A116079 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Emanate Health Inter-community HospitalCovina, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southern California Hospitalist Network Medical Group Inc892199011073

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 Gary D Guo allows following entities to bill medicare on his behalf.
Entity NameSouthern California Hospitalist Network Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790880458
PECOS PAC ID: 8921990110
Enrollment ID: O20040324001749
Entity NameRedondo Emergency Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376834937
PECOS PAC ID: 9032388269
Enrollment ID: O20110804000471
Entity NameArcadia Hospitalist Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114365269
PECOS PAC ID: 1951555366
Enrollment ID: O20130213000181

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 Gary D Guo 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 Gary D Guo, MD
2960 Huntington Dr #81071,
San Mario, CA 91118

Ph: () -		Dr Gary D Guo, MD
1115 S Sunset Ave,
West Covina, CA 91790-3940

Ph: (626) 962-4011

Reviews and Comments


Hospitalist Doctors in West Covina, CA

Dr. Habib Ahmad Haidary, MD
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 1115 S Sunset Ave, West Covina, CA 91790
Phone: 626-813-7837    
Ower Ciprian Castro,
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 1115 S Sunset Ave, West Covina, CA 91790
Phone: 626-962-4011    
Dr. Prabhpreet Singh, MD
Hospitalist
Medicare: Not Enrolled in Medicare
Practice Location: 1115 S Sunset Ave, West Covina, CA 91790
Phone: 310-777-1214    

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.