Nicholas Chien, MD
Emergency Medicine Physician · Chicago, IL
Nicholas Chien, MD is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1295255420, issued on Jun 20, 2017. Check the license (Illinois 125070257, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Nicholas Chien
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 125070257 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1750 W Harrison St Ste 108, Chicago, IL 60612
- Phone
- (312) 942-7802
- Enumerated
- Jun 20, 2017
- Record last updated
- Jun 20, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200714003022); accepts Medicare assignment
- Medical or professional school
- University Of Kentucky College Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 1750 W Harrison St Ste 108
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nicholas Chien 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 125070257Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average emergency medicine physician in 2024
66 Medicare Part D claims for 39 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of 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.
Industry payments in 2024: $18.74
1 payment: food and beverage; the largest payer was Braeburn Inc. The 12,335 providers of this specialty with any payment received $953.79 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
- Rush University Medical GroupChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Chien among 3,291 emergency medicine physician records in Illinois
Nicholas Chien, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% 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 68% of them.
- NPI issued2017 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2017 · median 2012 among the 1,867 with a school on file
- Record last updated2017 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,310 emergency medicine physician records list a practice address in Chicago
They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Chicago → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Joseph Brawka, M.D.Chicago, IL 606121174599112
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- Galeta Clayton, M.D.Chicago, IL 606121588630743
- Jennifer Fleming, M.D.Chicago, IL 606121912973975
- Jeffrey Grassle, M.D.Chicago, IL 606121205802147
- Marilyn Hallock, M.D.Chicago, IL 606121336110691
- Mumtaz Husain, M.D.Chicago, IL 606121891761953
- Paula Oldeg, M.D.Chicago, IL 606121568438687
Common questions
What is Nicholas Chien, MD's NPI number?
Nicholas Chien, MD's National Provider Identifier (NPI) is 1295255420, issued on Jun 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Chien, MD located?
The NPPES record lists a practice address at 1750 W Harrison St Ste 108, Chicago, IL, 60612. Phone: (312) 942-7802. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Chien, MD's license?
NPPES lists Illinois license number 125070257, 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 Nicholas Chien, MD prescribe under Medicare Part D?
In 2024, Nicholas Chien, MD had 66 Medicare Part D claims for 39 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.