Fred J. Halloran, MD
Internal Medicine Physician · Huntley, IL
Fred J. Halloran, MD is an internal medicine physician with a practice address in Huntley, Illinois, and NPI 1568434942, issued on Feb 1, 2006. Check the license (Illinois 036081972, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Fred J. Halloran
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036081972 IL
Self-reported in NPPES; status is on the state search - Practice location
- 11904 Oak Creek Pkwy, Huntley, IL 60142
- Phone
- (847) 506-1478
- Enumerated
- Feb 1, 2006
- Record last updated
- Jan 17, 2024
- Fax
- (224) 858-4001
- Medicaid ID
- 036081972 IL
- Medicare enrollment
- Enrolled (PECOS I20031113000704); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1988
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Fred J. Halloran 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 036081972Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,977 Medicare Part D claims for 191 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 26 claims were for opioids.
Most prescribed
- Atorvastatin Calcium111 claims
- Levothyroxine Sodium100 claims
- Metoprolol Tartrate93 claims
- Enalapril Maleate86 claims
- Amlodipine Besylate83 claims
- Simvastatin81 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: $288.77
11 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Fred J. Halloran among 7,238 internal medicine physician records in Illinois
Fred J. Halloran, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1988 · median 2003 among the 3,580 with a school on file
- Record last updated2024 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 internal medicine physician records list a practice address in Huntley
They are 10 of the 372 NPPES records with a practice address in Huntley, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Huntley → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ihab Ahmed, MDHuntley, IL 601421740636497
- Shazia Daudi, MDHuntley, IL 601421235137928
- Andrew Diaz, DOHuntley, IL 601421255951786
- Jared Ko, M.D.Huntley, IL 601421952369753
- Renata Osadnik, M.D.Huntley, IL 601421902819717
- Piushkumar Patel, M.D.Huntley, IL 601421447254255
- Sandra SchroderHuntley, IL 601421225906662
- Aleksander Tartakovsky, DOHuntley, IL 601421114412087
Common questions
What is Fred J. Halloran, MD's NPI number?
Fred J. Halloran, MD's National Provider Identifier (NPI) is 1568434942, issued on Feb 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Fred J. Halloran, MD located?
The NPPES record lists a practice address at 11904 Oak Creek Pkwy, Huntley, IL, 60142. Phone: (847) 506-1478. Providers update this record themselves, so call before visiting.
How can I verify Fred J. Halloran, MD's license?
NPPES lists Illinois license number 036081972, 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 Fred J. Halloran, MD prescribe under Medicare Part D?
In 2024, Fred J. Halloran, MD had 1,977 Medicare Part D claims for 191 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.