John T. Dorsey, MD
Internal Medicine Physician · Rockford, IL
John T. Dorsey, MD is an internal medicine physician with a practice address in Rockford, Illinois, and NPI 1144330333, issued on Aug 30, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John T. Dorsey
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 2350 N Rockton Ave, Rockford, IL 61103
- Phone
- (815) 971-7210
- Enumerated
- Aug 30, 2006
- Record last updated
- Oct 29, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040514000333); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2350 N Rockton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abdullah Altayeh, M.D.Pulmonary Disease Physician1831191584
- Melissa Bachman, APRNGerontology Nurse Practitioner1225709900
- Brenda Beilfuss, FNP-CFamily Nurse Practitioner1275185142
- Constance Blaisdell, NPFamily Nurse Practitioner1588135529
- William Buntain, MDPediatric Surgery Physician1700902608
- David Cheng, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1194781849
Verify John T. Dorsey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 91% of the cost of the top drugs
237 Medicare Part D claims for 111 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Shingrix30 claims
- Arexvy27 claims
- Boostrix Tdap21 claims
- Levothyroxine Sodium14 claims
- Atorvastatin Calcium12 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.
Bills Medicare through one group practice
- Rockford Health PhysiciansRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John T. Dorsey among 7,238 internal medicine physician records in Illinois
John T. Dorsey, 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
- Graduated1981 · median 2003 among the 3,580 with a school on file
- Record last updated2007 · 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).
82 internal medicine physician records list a practice address in Rockford
They are 82 of the 3,893 NPPES records with a practice address in Rockford, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Rockford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Susan Deguide, M.D.Rockford, IL 611031609801224
- Rubina Ehtesham, MDRockford, IL 611031962512152
- Robert Hahnel, MDRockford, IL 611031861502056
- Gordon Langejans, MDRockford, IL 611031164567509
- Maxine Mathew, M.D.Rockford, IL 611031578792511
- Saima Naeem, M.D.,Rockford, IL 611031164478616
- Craig Rogers, MDRockford, IL 611031548370737
- Arthur Rone, MDRockford, IL 611031457461642
Common questions
What is John T. Dorsey, MD's NPI number?
John T. Dorsey, MD's National Provider Identifier (NPI) is 1144330333, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John T. Dorsey, MD located?
The NPPES record lists a practice address at 2350 N Rockton Ave, Rockford, IL, 61103. Phone: (815) 971-7210. Providers update this record themselves, so call before visiting.
How can I verify John T. Dorsey, MD's license?
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 John T. Dorsey, MD prescribe under Medicare Part D?
In 2024, John T. Dorsey, MD had 237 Medicare Part D claims for 111 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.