James J. Ko, MD
Dermatology Physician · Paoli, PA
James J. Ko, MD is a dermatology physician with a practice address in Paoli, Pennsylvania, and NPI 1376076786, issued on Apr 4, 2017. Check the license (Pennsylvania MD474542, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- James J. Ko
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- MD474542 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4 Industrial Blvd Suite 200, Paoli, PA 19301
- Phone
- (610) 566-7111
- Enumerated
- Apr 4, 2017
- Record last updated
- Dec 21, 2023
- Medicare enrollment
- Enrolled (PECOS I20210701003575); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 681 in Pennsylvania → Look up another NPI →
Verify James J. Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD474542Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average dermatology physician in 2024
645 Medicare Part D claims for 293 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Ketoconazole138 claims
- Triamcinolone Acetonide75 claims
- Mupirocin49 claims
- Clobetasol Propionate46 claims
- Fluorouracil39 claims
- Hydrocortisone36 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 92.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $982.89
44 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Aesthetic Dermatology Associates PCPaoli, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James J. Ko among 681 dermatology physician records in Pennsylvania
James J. Ko, MD is one of 681 dermatology physician records with a practice address in Pennsylvania. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 18% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2017 · median 2007 among the 485 with a school on file
- Record last updated2023 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Pennsylvania
There are 681 dermatology physician records in Pennsylvania.
All 681 in Pennsylvania → Every provider in Paoli → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Maria Hannaway, MDPaoli, PA 193011265843304
- Amy LeibPaoli, PA 193011831534445
- Jordan Wang, MDDevon, PA 193331699129924
- Aerlyn Dawn, M.D.Exton, PA 193411740349182
- Daniel Dvorkin, MDExton, PA 193411417921636
- Scott Gottlieb, M.D.Exton, PA 193411285693887
- Hannah Liu, M.D.Exton, PA 193411407291123
- Charles Meyers, M.D.Exton, PA 193411225097769
Common questions
What is James J. Ko, MD's NPI number?
James J. Ko, MD's National Provider Identifier (NPI) is 1376076786, issued on Apr 4, 2017. An NPI identifies a provider in billing; it is not a license.
Where is James J. Ko, MD located?
The NPPES record lists a practice address at 4 Industrial Blvd Suite 200, Paoli, PA, 19301. Phone: (610) 566-7111. Providers update this record themselves, so call before visiting.
How can I verify James J. Ko, MD's license?
NPPES lists Pennsylvania license number MD474542, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James J. Ko, MD prescribe under Medicare Part D?
In 2024, James J. Ko, MD had 645 Medicare Part D claims for 293 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is James J. Ko, MD's MIPS final score?
The 2023 MIPS final score is 92.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.