Dr Wendy Gu, MD - Medicare Internal Medicine in Hacienda Heights, CA

Dr Wendy Gu, MD is a medicare enrolled "Internal Medicine" physician in Hacienda Heights, California. She graduated from medical school in 2011 and has 13 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Colima Medical Clinic Pc and her current practice location is 1850 S Azusa Ave, #205, Hacienda Heights, California. You can reach out to her office (for appointments etc.) via phone at (626) 964-2880.

Dr Wendy Gu is licensed to practice in California (license number A124115) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1740579994.

Contact Information

Dr Wendy Gu, MD
1850 S Azusa Ave, #205,
Hacienda Heights, CA 91745-6813
(626) 964-2880
(626) 964-2834

Map and Direction




Physician's Profile

Full NameDr Wendy Gu
GenderFemale
SpecialityInternal Medicine
Experience13 Years
Location1850 S Azusa Ave, Hacienda Heights, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Wendy Gu graduated from medical school in 2011
  NPI Data:
  • NPI Number: 1740579994
  • Provider Enumeration Date: 03/28/2011
  • Last Update Date: 04/20/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3072737105
  • Enrollment ID: I20140611002353

Medical Identifiers

Medical identifiers for Dr Wendy Gu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1740579994NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A124115 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Pih Health Hospital-whittierWhittier, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Colima Medical Clinic Pc27694199513

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 Wendy Gu allows following entities to bill medicare on her behalf.
Entity NameColima Medical Clinic Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760585129
PECOS PAC ID: 2769419951
Enrollment ID: O20050719001206

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 Wendy Gu 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 Wendy Gu, MD
1850 S Azusa Ave Ste 205,
Hacienda Heights, CA 91745-6853

Ph: (626) 964-2880
Dr Wendy Gu, MD
1850 S Azusa Ave, #205,
Hacienda Heights, CA 91745-6813

Ph: (626) 964-2880

Reviews and Comments


Internal Medicine Doctors in Hacienda Heights, CA

Mr. Anthony C. Chen, M.D.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 1850 S Azusa Ave, Suite 102, Hacienda Heights, CA 91745
Phone: 626-912-2682    Fax: 626-912-2684
Dr. Daniel Chung Ann Choo, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 17134 Colima Rd, Ste #e, Hacienda Heights, CA 91745
Phone: 626-820-0603    Fax: 626-820-0602
Ray Hsiao, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1850 S Azusa Ave, Suite 308, Hacienda Heights, CA 91745
Phone: 626-854-7866    Fax: 626-820-0666
Jaw-huei Chen, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1850 S Azusa Ave, Suite 205, Hacienda Heights, CA 91745
Phone: 626-964-2880    Fax: 626-964-2834
Dr. Omar Velasco, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1206 Barford Ave, Hacienda Heights, CA 91745
Phone: 626-392-1432    
Shang Cheng Wu, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3141 S Hacienda Blvd, Hacienda Heights, CA 91745
Phone: 626-937-6663    Fax: 626-937-6653
David Michael Aron, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3180 Colima Rd, Suite A, Hacienda Heights, CA 91745
Phone: 626-968-0547    Fax: 626-968-7599

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.