Byung Don Ahn, MD - Medicare Cardiovascular Disease (cardiology) in Upland, CA

Byung Don Ahn, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Upland, California. He graduated from medical school in 1978 and has 46 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Prohealth Partners, A Medical Group and his current practice location is 1382 E Foothill Blvd, Upland, California. You can reach out to his office (for appointments etc.) via phone at (909) 982-6500.

Byung Don Ahn is licensed to practice in California (license number A39266) 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 1194715193.

Contact Information

Byung Don Ahn, MD
1382 E Foothill Blvd,
Upland, CA 91786-4014
(909) 982-6500
(909) 920-0406

Map and Direction




Physician's Profile

Full NameByung Don Ahn
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience46 Years
Location1382 E Foothill Blvd, Upland, 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:
  • Byung Don Ahn graduated from medical school in 1978
  NPI Data:
  • NPI Number: 1194715193
  • Provider Enumeration Date: 10/21/2005
  • Last Update Date: 07/24/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 1153216197
  • Enrollment ID: I20080717000193

Medical Identifiers

Medical identifiers for Byung Don Ahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194715193NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease A39266 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
San Antonio Regional HospitalUpland, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Prohealth Partners, A Medical Group2769388412229

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. Byung Don Ahn allows following entities to bill medicare on his behalf.
Entity NameProhealth Partners, A Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003949975
PECOS PAC ID: 2769388412
Enrollment ID: O20031211000927

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. Byung Don Ahn 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
Byung Don Ahn, MD
1382 E Foothill Blvd,
Upland, CA 91786-4014

Ph: (909) 982-6500
Byung Don Ahn, MD
1382 E Foothill Blvd,
Upland, CA 91786-4014

Ph: (909) 982-6500

Reviews and Comments


Internal Medicine Doctors in Upland, CA

Dr. Sara Khan, MD
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Practice Location: 999 San Bernardino Rd, Upland, CA 91786
Phone: 909-985-2811    
Dr. Frankie D Utzurrum, M.D.
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Practice Location: 99 N San Antonio Ave, Suite 370, Upland, CA 91786
Phone: 909-946-6342    
Chirag Vaidya, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1317 W Foothill Blvd, Ste 148, Upland, CA 91786
Phone: 909-981-5882    Fax: 909-946-0833
Dr. Michael Chai, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 490 N Mountain Ave # B, Upland, CA 91786
Phone: 909-920-6698    Fax: 909-931-7192
Dr. Chau Ngoc Thi Tran, D.O.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1100 San Bernardino Rd Ste 1100, Upland, CA 91786
Phone: 909-949-2242    Fax: 909-981-5783
Tejinder Singh, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 914 W Foothill Blvd, Ste B, Upland, CA 91786
Phone: 909-982-8944    Fax: 909-985-0932
Vinod Chandrashekhar Patwardhan, M.D
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 918 W Foothill Blvd, Ste B, Upland, CA 91786
Phone: 909-949-4435    Fax: 909-982-4436

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.