John Jacob Alvarez, M.D.
Gastroenterology Physician · San Antonio, TX
John Jacob Alvarez, M.D. is a gastroenterology physician with a practice address in San Antonio, Texas, and NPI 1255692083, issued on Jun 7, 2012. Check the license (Texas PIT, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Jacob Alvarez
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- PIT TX
Self-reported in NPPES; status is on the state search - Practice location
- 520 E Euclid Ave, San Antonio, TX 78212
- Phone
- (210) 271-0606
- Enumerated
- Jun 7, 2012
- Record last updated
- Jul 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (210) 271-0180
- Medicare enrollment
- Enrolled (PECOS I20180613001408); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,478 in Texas → Look up another NPI →
Also registered at 520 E Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vanessa Becker, PA-CPhysician Assistant1861496440
- Jeff Bullock, M.D.Gastroenterology Physician1528062288
- Anna Cedillo, APRN-CNPAcute Care Nurse Practitioner1558025031
- Shelby Clark, APRNNurse Practitioner1669225827
- Izamar De La Garza, NPNurse Practitioner1982349213
- Leonard Duran, M.D.Specialist1144224809
Verify John Jacob Alvarez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license PITCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% more Medicare Part D claims than the average gastroenterology physician in 2024
1,368 Medicare Part D claims for 399 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Pantoprazole Sodium250 claims
- Omeprazole190 claims
- Famotidine121 claims
- Dicyclomine Hcl57 claims
- Gavilyte-C55 claims
- Metoclopramide Hcl54 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,899.49
81 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. 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
- Texas Digestive Disease Consultants, PLLCSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Jacob Alvarez among 1,478 gastroenterology physician records in Texas
John Jacob Alvarez, M.D. is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% 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 74% of them.
- NPI issued2012 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2012 · median 2003 among the 1,175 with a school on file
- Record last updated2018 · 53% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Texas
There are 1,478 gastroenterology physician records in Texas.
All 1,478 in Texas → Every provider in San Antonio → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jeff Bullock, M.D.San Antonio, TX 782121528062288
- Eddie Flores, M.D.San Antonio, TX 782121568466217
- Kevin Franklin, M.D.San Antonio, TX 782121699700583
- David Garcia, MDSan Antonio, TX 782121265417893
- Ernesto Guerra, MDSan Antonio, TX 782121558366435
- Joseph Johnson, MDSan Antonio, TX 782121477557072
- Shailesh Kadakia, MDSan Antonio, TX 782121295767861
- Richard Otero, MDSan Antonio, TX 782121881699734
Common questions
What is John Jacob Alvarez, M.D.'s NPI number?
John Jacob Alvarez, M.D.'s National Provider Identifier (NPI) is 1255692083, issued on Jun 7, 2012. An NPI identifies a provider in billing; it is not a license.
Where is John Jacob Alvarez, M.D. located?
The NPPES record lists a practice address at 520 E Euclid Ave, San Antonio, TX, 78212. Phone: (210) 271-0606. Providers update this record themselves, so call before visiting.
How can I verify John Jacob Alvarez, M.D.'s license?
NPPES lists Texas license number PIT, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Jacob Alvarez, M.D. prescribe under Medicare Part D?
In 2024, John Jacob Alvarez, M.D. had 1,368 Medicare Part D claims for 399 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is John Jacob Alvarez, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.