Janice K. Ko, M.D.
Family Medicine Physician · Hoffman Estates, IL
Janice K. Ko, M.D. is a family medicine physician with a practice address in Hoffman Estates, Illinois, and NPI 1124348339, issued on Jun 10, 2010. Check the license (Illinois 125058058, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Janice K. Ko
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 125058058 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1555 Barrington RD, Hoffman Estates, IL 60169
- Phone
- (847) 882-2400
- Enumerated
- Jun 10, 2010
- Record last updated
- Mar 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (847) 884-7222
- Medicare enrollment
- Enrolled (PECOS I20130826000525); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1555 Barrington RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lita AraysiObstetrics & Gynecology Physician1730882234
- Shanthi Aribindi, M.D.Anesthesiology Physician1033174719
- Dimitri Bagrov, C.R.N.A.Certified Registered Nurse Anesthetist1205285855
- Matangi Bala, MDAnesthesiology Physician1508035213
- Kristen Bishop, M.D.Pediatric Endocrinology Physician1326297292
- Neha Bodiwala, APNFamily Nurse Practitioner1336684547
Verify Janice K. Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125058058Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average family medicine physician in 2024
8,845 Medicare Part D claims for 883 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 277 claims were for opioids.
Most prescribed
- Atorvastatin Calcium797 claims
- Levothyroxine Sodium500 claims
- Amlodipine Besylate417 claims
- Lisinopril360 claims
- Losartan Potassium357 claims
- Rosuvastatin Calcium321 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.
Bills Medicare through one group practice
- Bonaventure Medical Foundation LLCHoffman Estates, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Janice K. Ko among 6,215 family medicine physician records in Illinois
Janice K. Ko, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 57% of them.
- NPI issued2010 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2010 · median 2006 among the 3,714 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 family medicine physician records list a practice address in Hoffman Estates
They are 23 of the 1,293 NPPES records with a practice address in Hoffman Estates, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Hoffman Estates → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sonia Abraham, MDHoffman Estates, IL 601691881824704
- Laura Baber, MDHoffman Estates, IL 601691134192636
- David Barnes, DOHoffman Estates, IL 601691275526741
- Calvin Fischer, D.O.Hoffman Estates, IL 601691932227725
- Roseann Gager, M.D.Hoffman Estates, IL 601691053569327
- Regeni George-Brown, M.D.Hoffman Estates, IL 601691912104340
- Shruti Gupta, MDHoffman Estates, IL 601691811256399
- Joseph Mercola, D.OHoffman Estates, IL 601691285713362
Common questions
What is Janice K. Ko, M.D.'s NPI number?
Janice K. Ko, M.D.'s National Provider Identifier (NPI) is 1124348339, issued on Jun 10, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Janice K. Ko, M.D. located?
The NPPES record lists a practice address at 1555 Barrington RD, Hoffman Estates, IL, 60169. Phone: (847) 882-2400. Providers update this record themselves, so call before visiting.
How can I verify Janice K. Ko, M.D.'s license?
NPPES lists Illinois license number 125058058, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Janice K. Ko, M.D. prescribe under Medicare Part D?
In 2024, Janice K. Ko, M.D. had 8,845 Medicare Part D claims for 883 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.