Cho-Yen Chiou, M.D.
Internal Medicine Physician · Asheville, NC
Cho-Yen Chiou, M.D. is an internal medicine physician with a practice address in Asheville, North Carolina, and NPI 1124079470, issued on May 12, 2006. Check the license on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- Cho-Yen Chiou
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 1100 Tunnel RD, Asheville, NC 28805
- Phone
- (828) 298-7911
- Enumerated
- May 12, 2006
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,056 in North Carolina → Look up another NPI →
Also registered at 1100 Tunnel RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Abbott, PACPhysician Assistant1619919776
- Amber Adams, MSWClinical Social Worker1568741601
- Richard Adams, LCSWMental Health Counselor1649232000
- Ernest Ahl, M.D.Anatomic Pathology & Clinical Pathology Physician1922046192
- Taylor Alexander, M.D.Family Medicine Physician1396123626
- Caitlin Amittay, LCSWAClinical Social Worker1619792728
Verify Cho-Yen Chiou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
22 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Ozempic11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Cho-Yen Chiou among 4,056 internal medicine physician records in North Carolina
Cho-Yen Chiou, M.D. is one of 4,056 internal medicine physician records with a practice address in North Carolina. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
203 internal medicine physician records list a practice address in Asheville
They are 203 of the 8,173 NPPES records with a practice address in Asheville, and 4,056 internal medicine physician records in North Carolina.
All 4,056 in North Carolina → Every provider in Asheville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Clara Chay, M.D.Asheville, NC 288051285600304
- Jerold Fadem, M.D.Asheville, NC 288051629046958
- Carl Greever, M.D.Asheville, NC 288051124087796
- Lara Hume, MDAsheville, NC 288051770561334
- James Johnson, MDAsheville, NC 288051902866031
- Raj Kumar, MDAsheville, NC 288051497755433
- Michael Lutarewych, MDAsheville, NC 288051508864588
- William May, MDAsheville, NC 288051558321646
Common questions
What is Cho-Yen Chiou, M.D.'s NPI number?
Cho-Yen Chiou, M.D.'s National Provider Identifier (NPI) is 1124079470, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cho-Yen Chiou, M.D. located?
The NPPES record lists a practice address at 1100 Tunnel RD, Asheville, NC, 28805. Phone: (828) 298-7911. Providers update this record themselves, so call before visiting.
How can I verify Cho-Yen Chiou, M.D.'s license?
Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cho-Yen Chiou, M.D. prescribe under Medicare Part D?
In 2024, Cho-Yen Chiou, M.D. had 22 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.