Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Byung Don Ahn, MD

Individual provider Cardiovascular Disease Physician · NPI 1194715193

Byung Don Ahn, MD is a Cardiovascular Disease (Cardiology) in Upland, California. Qualified in 1978, 48 years ago. Practices with Prohealth Partners, a Medical Group, a 234-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
48
Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

685 N 13th Ave Ste 1
Upland, CA 91786-4963
Phone: (909) 500-8683
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1382 E Foothill Blvd, Upland, CA 91786-4014 — (909) 982-6500

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence A39266 (CA)

Record details

NPI number1194715193
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 21, 2005
Last updated in NPPESMarch 25, 2026
Certification dateMarch 25, 2026
Mailing address1382 E Foothill Blvd, Upland, CA 91786-4014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Group practice Prohealth Partners, A Medical Group — 234 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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