Matthew H. Twohig, MD
Anatomic Pathology & Clinical Pathology Physician · Rockford, IL
Matthew H. Twohig, MD is an anatomic pathology & clinical pathology physician with a practice address in Rockford, Illinois, and NPI 1609839851, issued on Apr 10, 2006. Check the license (Illinois 036.120439, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Matthew H. Twohig
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License numbers
- 036.120439 IL
48462 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1401 E State St, Rockford, IL 61104
- Phone
- (815) 971-5000
- Enumerated
- Apr 10, 2006
- Record last updated
- Jul 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080619000601); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 789 in Illinois → Look up another NPI →
Also registered at 1401 E State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Isra Al Jamed, MDEmergency Medical Services (Emergency Medicine) Physician1477059343
- Martin Anyebuno, M.D.Neonatal-Perinatal Medicine Physician1982661955
- Amit Bakshi, M.D.Emergency Medicine Physician1326296732
- Amanda Beard, PT, DPTPhysical Therapist1760125819
- Daniel Bentley, PASurgical Physician Assistant1629177647
Verify Matthew H. Twohig 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 036.120439Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Rockford Associated Pathologists LtdRockford, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew H. Twohig among 789 anatomic pathology & clinical pathology physician records in Illinois
Matthew H. Twohig, MD is one of 789 anatomic pathology & clinical pathology physician records with a practice address in Illinois. 55% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 58% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2003 · median 2003 among the 396 with a school on file
- Record last updated2019 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Illinois
There are 789 anatomic pathology & clinical pathology physician records in Illinois.
All 789 in Illinois → Every provider in Rockford → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Eva Drinka, M.D.Rockford, IL 611041114180296
- Sara Fleming, MDRockford, IL 611041972575157
- Roger Hilbert, MDRockford, IL 611041457323628
- Tarek Jazaerly, M.D.Rockford, IL 611041568780625
- Hiului Lau, MDRockford, IL 611041316919103
- Korrin Meier, M.D.Rockford, IL 611041164511762
- Rebekha Neu, MDRockford, IL 611041861464067
- Samuel Park, MDRockford, IL 611041720050495
Common questions
What is Matthew H. Twohig, MD's NPI number?
Matthew H. Twohig, MD's National Provider Identifier (NPI) is 1609839851, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Matthew H. Twohig, MD located?
The NPPES record lists a practice address at 1401 E State St, Rockford, IL, 61104. Phone: (815) 971-5000. Providers update this record themselves, so call before visiting.
How can I verify Matthew H. Twohig, MD's license?
NPPES lists Illinois license number 036.120439, 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.
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.