Katherine Dornan Derby, MD, MS
Obstetrics & Gynecology Physician · Chicago, IL
Katherine Dornan Derby, MD, MS is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1538654256, issued on Jun 25, 2018. Check the license (Illinois 036157085, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Katherine Dornan Derby
- Credential
- MD, MS
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 036157085 IL
125073316 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5140 N California Ave FL 6, Chicago, IL 60625
- Phone
- (773) 878-7787
- Enumerated
- Jun 25, 2018
- Record last updated
- Jul 15, 2022
- Medicare enrollment
- Enrolled (PECOS I20220804003160); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2018
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 5140 N California Ave FL 6
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julia Cartledge, MDObstetrics & Gynecology Physician1023679073
Verify Katherine Dornan Derby 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 036157085Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
37 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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.
The MIPS final score for 2023 (Medicare payment program): 93.1 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: $302.72
15 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Endeavor Health Medical GroupEvanston, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Dornan Derby among 2,062 obstetrics & gynecology physician records in Illinois
Katherine Dornan Derby, MD, MS is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 79% of them.
- NPI issued2018 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2018 · median 2006 among the 1,168 with a school on file
- Record last updated2022 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
700 obstetrics & gynecology physician records list a practice address in Chicago
They are 700 of the 63,379 NPPES records with a practice address in Chicago, and 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Chicago → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Elaine Aguinaldo, DOChicago, IL 606251528350865
- Michelle Beck, M.D.Chicago, IL 606251235576158
- Stacy Brown, M.D.Chicago, IL 606251366880908
- Cherise Cokley, MDChicago, IL 606251285835025
- James Crane, MDChicago, IL 606251821061870
- Suniti Dalal, M.D.Chicago, IL 606251386693810
- Michelle Eichinger, DOChicago, IL 606251649536186
- Anuradha Koduri, M.D.Chicago, IL 606251164471058
Common questions
What is Katherine Dornan Derby, MD, MS's NPI number?
Katherine Dornan Derby, MD, MS's National Provider Identifier (NPI) is 1538654256, issued on Jun 25, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Dornan Derby, MD, MS located?
The NPPES record lists a practice address at 5140 N California Ave FL 6, Chicago, IL, 60625. Phone: (773) 878-7787. Providers update this record themselves, so call before visiting.
How can I verify Katherine Dornan Derby, MD, MS's license?
NPPES lists Illinois license number 036157085, 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 Katherine Dornan Derby, MD, MS prescribe under Medicare Part D?
In 2024, Katherine Dornan Derby, MD, MS had 37 Medicare Part D claims for 22 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Katherine Dornan Derby, MD, MS's MIPS final score?
The 2023 MIPS final score is 93.1 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.