Chi Sown Ko, M.D.
Dermatology Physician · Youngstown, OH
Chi Sown Ko, M.D. is a dermatology physician with a practice address in Youngstown, Ohio, and NPI 1306813324, issued on Mar 8, 2006. Check the license (Ohio 35.036198, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Chi Sown Ko
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 35.036198 OH
Self-reported in NPPES; status is on the state search - Practice location
- 3132 Belmont Ave, Youngstown, OH 44505
- Phone
- (330) 759-0644
- Enumerated
- Mar 8, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (330) 759-1893
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 507 in Ohio → Look up another NPI →
Also registered at 3132 Belmont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Bardash, CDCAAddiction (Substance Use Disorder) Counselor1770040115
Verify Chi Sown Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.036198Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average dermatology physician in 2024
13 Medicare Part D claims, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Triamcinolone Acetonide12 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.
Chi Sown Ko among 507 dermatology physician records in Ohio
Chi Sown Ko, M.D. is one of 507 dermatology physician records with a practice address in Ohio. 86% 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, 56% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Ohio
There are 507 dermatology physician records in Ohio.
All 507 in Ohio → Every provider in Youngstown → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Mariel Bird, D.O.Boardman, OH 445121093020133
- Jenifer Lloyd, D.O.Youngstown, OH 445121316942758
- Anthony Mehle, M.D.Youngstown, OH 445121609870567
- Stephen Salcedo, M.D.Boardman, OH 445121134100811
- Madeline Tarrillion, D.O.Youngstown, OH 445121013356476
- Susan Woods, MDYoungstown, OH 445151013960319
- Rachel Delost, DOWarren, OH 444841659861839
- Rasnik Dulay, MDWarren, OH 444841437686318
Common questions
What is Chi Sown Ko, M.D.'s NPI number?
Chi Sown Ko, M.D.'s National Provider Identifier (NPI) is 1306813324, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chi Sown Ko, M.D. located?
The NPPES record lists a practice address at 3132 Belmont Ave, Youngstown, OH, 44505. Phone: (330) 759-0644. Providers update this record themselves, so call before visiting.
How can I verify Chi Sown Ko, M.D.'s license?
NPPES lists Ohio license number 35.036198, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chi Sown Ko, M.D. prescribe under Medicare Part D?
In 2024, Chi Sown Ko, M.D. had 13 Medicare Part D claims; the average among dermatology physician prescribers was 797. 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.