Rex Antinozzi, M.D.
Gastroenterology Physician · Traverse City, MI
Rex Antinozzi, M.D. is a gastroenterology physician with a practice address in Traverse City, Michigan, and NPI 1427119429, issued on Dec 13, 2006. Check the license (Michigan RA049843, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Rex Antinozzi
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- RA049843 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4100 Park Forest Dr, Traverse City, MI 49684
- Phone
- (231) 935-5710
- Enumerated
- Dec 13, 2006
- Record last updated
- Aug 29, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (231) 935-9045
- Medicaid ID
- 4343067 MI
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 550 in Michigan → Look up another NPI →
Also registered at 4100 Park Forest Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Abbott, CRNACertified Registered Nurse Anesthetist1326004029
- Mark Aulicino, M.D.Anesthesiology Physician1558340737
- Robert Barnes, M.D.Gastroenterology Physician1497821284
- Kristin Bauman, CRNACertified Registered Nurse Anesthetist1396992533
- Kathy Boyd, CRNACertified Registered Nurse Anesthetist1396004834
- Bruce Buchan, CRNACertified Registered Nurse Anesthetist1639164668
Verify Rex Antinozzi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license RA049843Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average gastroenterology physician in 2024
198 Medicare Part D claims for 76 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Omeprazole39 claims
- Mesalamine28 claims
- Dicyclomine Hcl22 claims
- Pantoprazole Sodium19 claims
- Lansoprazole11 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.
Rex Antinozzi among 550 gastroenterology physician records in Michigan
Rex Antinozzi, M.D. is one of 550 gastroenterology physician records with a practice address in Michigan. 85% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 50% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2008 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Michigan
There are 550 gastroenterology physician records in Michigan.
All 550 in Michigan → Every provider in Traverse City → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Robert Barnes, M.D.Traverse City, MI 496841497821284
- Heather Carroll, D.O.Traverse City, MI 496841902246689
- Mark Galan, M.D.Traverse City, MI 496841023184819
- Jeffrey Goldman, M.D.Traverse City, MI 496841316039142
- Montgomery Hegewald, M.D.Traverse City, MI 496841205902095
- John Milliken, MDTraverse City, MI 496841013048057
- Kurt Sanford, M.D.Traverse City, MI 496841851467641
- Alexander Weick, M.D.Traverse City, MI 496841942542444
Common questions
What is Rex Antinozzi, M.D.'s NPI number?
Rex Antinozzi, M.D.'s National Provider Identifier (NPI) is 1427119429, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rex Antinozzi, M.D. located?
The NPPES record lists a practice address at 4100 Park Forest Dr, Traverse City, MI, 49684. Phone: (231) 935-5710. Providers update this record themselves, so call before visiting.
How can I verify Rex Antinozzi, M.D.'s license?
NPPES lists Michigan license number RA049843, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rex Antinozzi, M.D. prescribe under Medicare Part D?
In 2024, Rex Antinozzi, M.D. had 198 Medicare Part D claims for 76 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.