Marco A. Paez, M.D.
Gastroenterology Physician · Corona, CA
Marco A. Paez, M.D. is a gastroenterology physician with a practice address in Corona, California, and NPI 1902167695, issued on May 30, 2012. Check the license (California A154078, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marco A. Paez
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A154078 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2250 S Main St, Corona, CA 92882
- Phone
- (951) 808-6298
- Enumerated
- May 30, 2012
- Record last updated
- Jan 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (951) 523-7065
- Medicare enrollment
- Enrolled (PECOS I20190807002463); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 2250 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Srinidhi Ekkati, PA-CMedical Physician Assistant1316108491
- Tom Ku, P.A.-CPhysician Assistant1609955285
- Parker McDonaldChiropractor1376436303
- L R Moscoso, M.D.Cardiovascular Disease Physician1073548962
- Nicole Newman, PA-CPhysician Assistant1184802332
- Anthony Pirritano, D.C.Chiropractor1457343022
Verify Marco A. Paez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A154078Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average gastroenterology physician in 2024
524 Medicare Part D claims for 287 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Gavilyte-G110 claims
- Omeprazole108 claims
- Peg-3350 And Electrolytes81 claims
- Dicyclomine Hcl20 claims
- Sod Sulf-Potass Sulf-Mag Sulf19 claims
- Pantoprazole Sodium16 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: $574.91
18 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through one group practice
- United Medical DoctorsMurrieta, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marco A. Paez among 2,140 gastroenterology physician records in California
Marco A. Paez, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 77% of them.
- NPI issued2012 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2012 · median 2002 among the 1,538 with a school on file
- Record last updated2021 · 60% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Corona → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Omar Shahbaz, M.D., M.S.Corona, CA 928821417226366
- M. Mazen Jamal, M.D., M.P.H.Corona, CA 928811003916727
- Mladen Jecmenica, M.D.Corona, CA 928811619102837
- David Chapman, M.D.Yorba Linda, CA 928861053321943
- Tahmina Haq, M.D.Yorba Linda, CA 928861538332853
- Hyder Jamal, MDYorba Linda, CA 928861740280932
- Andrew Ko, M.D.Yorba Linda, CA 928861437170990
- Keith Martin, M.D.Yorba Linda, CA 928861649280546
Common questions
What is Marco A. Paez, M.D.'s NPI number?
Marco A. Paez, M.D.'s National Provider Identifier (NPI) is 1902167695, issued on May 30, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Marco A. Paez, M.D. located?
The NPPES record lists a practice address at 2250 S Main St, Corona, CA, 92882. Phone: (951) 808-6298. Providers update this record themselves, so call before visiting.
How can I verify Marco A. Paez, M.D.'s license?
NPPES lists California license number A154078, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marco A. Paez, M.D. prescribe under Medicare Part D?
In 2024, Marco A. Paez, M.D. had 524 Medicare Part D claims for 287 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.