Daniel Leonard, DO
Critical Care Medicine (Internal Medicine) Physician · Rockford, IL
Daniel Leonard, DO is a critical care medicine (internal medicine) physician with a practice address in Rockford, Illinois, and NPI 1366671489, issued on Jul 10, 2009. Check the license (Illinois 036-131017, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Daniel Leonard
- Credential
- DO
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- 036-131017 IL
64155 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1340 Charles St Ste 405, Rockford, IL 61104
- Phone
- (779) 696-6102
- Enumerated
- Jul 10, 2009
- Record last updated
- May 15, 2026
- Fax
- (779) 696-6026
- Medicare enrollment
- Enrolled (PECOS I20130313000093); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2009
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 281 in Illinois → Look up another NPI →
Also registered at 1340 Charles St Ste 405
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yazan Fahmawi, MDCritical Care Medicine (Internal Medicine) Physician1760978910
- Michael Puruckherr, MDPulmonary Disease Physician1487684353
- Tara Stafford, PA-CPhysician Assistant1538854716
- Christine ThomasPhysician Assistant1306563440
Verify Daniel Leonard 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 036-131017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
404 Medicare Part D claims for 126 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 71% of claims.
Most prescribed
- Albuterol Sulfate Hfa69 claims
- Arnuity Ellipta37 claims
- Trelegy Ellipta30 claims
- Anoro Ellipta27 claims
- Ofev27 claims
- Breo Ellipta21 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 practice group's MIPS final score for 2023 (Medicare payment program): 77.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $437.02
19 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 2,708 providers of this specialty with any payment received $2,958.68 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
- Swedishamerican HospitalRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Leonard among 281 critical care medicine (internal medicine) physician records in Illinois
Daniel Leonard, DO is one of 281 critical care medicine (internal medicine) physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 44% of them.
- NPI issued2009 · 44% of these records are older, 52% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2009 · median 2008 among the 226 with a school on file
- Record last updated2026 · 22% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Illinois
There are 281 critical care medicine (internal medicine) physician records in Illinois.
All 281 in Illinois → Every provider in Rockford → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Yazan Fahmawi, MDRockford, IL 611041760978910
- Samridhi Gulati, MDRockford, IL 611041245737253
- George Thomas, MDRockford, IL 611041861836033
- Mohamed Gashouta, M.D.Galesburg, IL 614011427311877
- Kishorbhai Patel, M.D.Galesburg, IL 614011396846853
- Zohair Karmally, MDChicago, IL 606571851576243
- Michael Ries, MDChicago, IL 606571366446791
- Mordecai Gerstein, M.D.Chicago, IL 606451114955697
Common questions
What is Daniel Leonard, DO's NPI number?
Daniel Leonard, DO's National Provider Identifier (NPI) is 1366671489, issued on Jul 10, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Leonard, DO located?
The NPPES record lists a practice address at 1340 Charles St Ste 405, Rockford, IL, 61104. Phone: (779) 696-6102. Providers update this record themselves, so call before visiting.
How can I verify Daniel Leonard, DO's license?
NPPES lists Illinois license number 036-131017, 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 Daniel Leonard, DO prescribe under Medicare Part D?
In 2024, Daniel Leonard, DO had 404 Medicare Part D claims for 126 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
What is Daniel Leonard, DO's MIPS final score?
The 2023 MIPS final score is 77.8 of 100, reported for the practice group. 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.