Karen Hsia Ma, MD, PHARMD
Gastroenterology Physician · Elmhurst, IL
Karen Hsia Ma, MD, PHARMD is a gastroenterology physician with a practice address in Elmhurst, Illinois, and NPI 1124464789, issued on May 21, 2013. Check the license (Illinois 036-139551, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Karen Hsia Ma
- Credential
- MD, PHARMD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036-139551 IL
Self-reported in NPPES; status is on the state search - Practice location
- 155 E Brush Hill RD, Elmhurst, IL 60126
- Phone
- (331) 221-9003
- Enumerated
- May 21, 2013
- Record last updated
- Jan 13, 2022
- Fax
- (331) 221-2743
- Medicare enrollment
- Enrolled (PECOS I20190819003860); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 155 E Brush Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Hsia Ma 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 036-139551Check 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 gastroenterology physician in 2024
19 Medicare Part D claims for 17 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
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 MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $265.94
3 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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
- Endeavor Health Medical GroupElmhurst, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Hsia Ma among 887 gastroenterology physician records in Illinois
Karen Hsia Ma, MD, PHARMD is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2013 · median 2003 among the 643 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Elmhurst → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ashish Arora, MDElmhurst, IL 601261336157171
- Elizabeth Barczynski, MDElmhurst, IL 601261942250071
- Christopher Boutin, MDElmhurst, IL 601261760440259
- Michael Greenspan, MDElmhurst, IL 601261942520127
- Adelina Hung, MDElmhurst, IL 601261326300120
- Jason Kramer, M.D.Elmhurst, IL 601261366891491
- Shakthi Kumar, MDElmhurst, IL 601261881853596
- Atena Lodhi, MDElmhurst, IL 601261629367966
Common questions
What is Karen Hsia Ma, MD, PHARMD's NPI number?
Karen Hsia Ma, MD, PHARMD's National Provider Identifier (NPI) is 1124464789, issued on May 21, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Karen Hsia Ma, MD, PHARMD located?
The NPPES record lists a practice address at 155 E Brush Hill RD, Elmhurst, IL, 60126. Phone: (331) 221-9003. Providers update this record themselves, so call before visiting.
How can I verify Karen Hsia Ma, MD, PHARMD's license?
NPPES lists Illinois license number 036-139551, 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 Karen Hsia Ma, MD, PHARMD prescribe under Medicare Part D?
In 2024, Karen Hsia Ma, MD, PHARMD had 19 Medicare Part D claims for 17 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Karen Hsia Ma, MD, PHARMD's MIPS final score?
The 2023 MIPS final score is 91.4 of 100. 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.