Anthony Pera Merza, M.D.
Gastroenterology Physician · Chicago, IL
Anthony Pera Merza, M.D. is a gastroenterology physician with a practice address in Chicago, Illinois, and NPI 1780709337, issued on Mar 20, 2007. Check the license (Illinois 036067060, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Anthony Pera Merza
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036067060 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5145 N California Ave, Chicago, IL 60625
- Phone
- (773) 275-8811
- Enumerated
- Mar 20, 2007
- Record last updated
- May 28, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (773) 282-2120
- Medicaid ID
- 036067060 IL
- Medicare enrollment
- Enrolled (PECOS I20040122000542); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 5145 N California Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linh Agtuca, DOFamily Medicine Physician1992169783
- Tanja Alavanja, PHARMDPharmacist1336668417
- Matthew Alfarano, MDEmergency Medicine Physician1538621487
- Sawsan Alzukaimi, MDSurgery Physician1184147688
- Basava Ancha, MDInternal Medicine Physician1265488647
- Abigail Anderson, DOInternal Medicine Physician1154263168
Verify Anthony Pera Merza 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 036067060Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average gastroenterology physician in 2024
76 Medicare Part D claims for 48 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Peg 3350-Electrolyte42 claims
- Omeprazole13 claims
- Pantoprazole Sodium12 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.
Anthony Pera Merza among 887 gastroenterology physician records in Illinois
Anthony Pera Merza, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 45% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1982 · median 2003 among the 643 with a school on file
- Record last updated2013 · 49% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Chicago → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Nolan Faust, MDChicago, IL 606251124511555
- Aava Khatiwada, MDChicago, IL 606251073033353
- Sriya Muralidharan, MDChicago, IL 606251174085179
- Albert Saporta, MD.Chicago, IL 606251548341290
- John Venetos, M.D.Chicago, IL 606251952324584
- Eduardo Villa, MDChicago, IL 606251447347802
- Catherine Wang, MDChicago, IL 606251891321741
- Samuel Castillo, M.D.Chicago, IL 606221467503672
Common questions
What is Anthony Pera Merza, M.D.'s NPI number?
Anthony Pera Merza, M.D.'s National Provider Identifier (NPI) is 1780709337, issued on Mar 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Anthony Pera Merza, M.D. located?
The NPPES record lists a practice address at 5145 N California Ave, Chicago, IL, 60625. Phone: (773) 275-8811. Providers update this record themselves, so call before visiting.
How can I verify Anthony Pera Merza, M.D.'s license?
NPPES lists Illinois license number 036067060, 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 Anthony Pera Merza, M.D. prescribe under Medicare Part D?
In 2024, Anthony Pera Merza, M.D. had 76 Medicare Part D claims for 48 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.