Darby J. Flatley
Physician Assistant · Chicago, IL
Darby J. Flatley is a physician assistant with a practice address in Chicago, Illinois, and NPI 1932755683, issued on Aug 16, 2019. Check the license (Illinois 085008379, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Darby J. Flatley
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085008379 IL
Self-reported in NPPES; status is on the state search - Practice location
- 675 N Saint Clair St Ste 21-100, Chicago, IL 60611
- Phone
- (312) 695-0990
- Enumerated
- Aug 16, 2019
- Record last updated
- Oct 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (312) 695-1106
- Medicare enrollment
- Enrolled (PECOS I20240219002760); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 675 N Saint Clair St Ste 21-100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Darby J. Flatley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085008379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average physician assistant in 2024
236 Medicare Part D claims for 79 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 28 claims were for opioids.
Most prescribed
- Prochlorperazine Maleate21 claims
- Dexamethasone18 claims
- Lorazepam17 claims
- Oxycodone Hcl16 claims
- Prednisone15 claims
- Loperamide14 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): 94.1 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: $98.11
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 64,719 providers of this specialty with any payment received $841.65 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
- North Memorial Health CareRobbinsdale, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darby J. Flatley among 4,926 physician assistant records in Illinois
Darby J. Flatley is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 53% of them.
- NPI issued2019 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2020 · median 2019 among the 3,407 with a school on file
- Record last updated2021 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,445 physician assistant records list a practice address in Chicago
They are 1,445 of the 63,379 NPPES records with a practice address in Chicago, and 4,926 physician assistant records in Illinois.
All 4,926 in Illinois → Every provider in Chicago → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Regina Bart, PAChicago, IL 606111083656284
- Michele Bryk, PAChicago, IL 606111316906860
- Jennifer Centore-Lober, PA CChicago, IL 606111932198322
- Karen Ferkau, P.A.Chicago, IL 606111013082809
- Jung Lee, PAChicago, IL 606111588698476
- Michael Maclean, PA-CChicago, IL 606111033139399
- Vera Nisavic, P.A.Chicago, IL 606111174696207
- Laura Nishi, PAChicago, IL 606111821040049
Common questions
What is Darby J. Flatley's NPI number?
Darby J. Flatley's National Provider Identifier (NPI) is 1932755683, issued on Aug 16, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Darby J. Flatley located?
The NPPES record lists a practice address at 675 N Saint Clair St Ste 21-100, Chicago, IL, 60611. Phone: (312) 695-0990. Providers update this record themselves, so call before visiting.
How can I verify Darby J. Flatley's license?
NPPES lists Illinois license number 085008379, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Darby J. Flatley prescribe under Medicare Part D?
In 2024, Darby J. Flatley had 236 Medicare Part D claims for 79 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Darby J. Flatley's MIPS final score?
The 2023 MIPS final score is 94.1 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.