NPPES file of Aug 9, 2026

Ricardo A. Montemayor, MD

Internal Medicine Physician · San Antonio, TX

Ricardo A. Montemayor, MD is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1497720338, issued on Feb 22, 2006. Check the license (Texas J0137, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497720338
Name
Ricardo A. Montemayor
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
J0137 TX
Self-reported in NPPES; status is on the state search
Practice location
7719 S IH 35 Ste 212, San Antonio, TX 78224
Phone
(303) 204-9558
Enumerated
Feb 22, 2006
Record last updated
Jun 13, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(830) 320-4956
Medicaid ID
138593214 TX
Medicare enrollment
Enrolled (PECOS I20050720000556); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At San Antonio, 1990
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 7719 S IH 35 Ste 212

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Marek Cena, M.D.Interventional Cardiology Physician1154638732
  2. Luis Lucero, FNP-BCNurse Practitioner1043984008
  3. Isela Vasquez, M.D.Surgery Physician1194929513

Verify Ricardo A. Montemayor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J0137
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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49% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,608 Medicare Part D claims for 281 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Ricardo Montemayor1,608
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium124 claims
  2. Levothyroxine Sodium84 claims
  3. Metformin Hcl47 claims
  4. Montelukast Sodium45 claims
  5. Amlodipine Besylate41 claims
  6. Omeprazole41 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: $21.05

1 payment: food and beverage; the largest payer was Dexcom, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ricardo Montemayor$21.05
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Ricardo A. Montemayor among 9,175 internal medicine physician records in Texas

Ricardo A. Montemayor, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1990 · median 2004 among the 6,088 with a school on file
  • Record last updated2019 · 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 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

657 internal medicine physician records list a practice address in San Antonio

They are 657 of the 37,749 NPPES records with a practice address in San Antonio, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Farah Al Allawi, MD , M.B.CH.BSan Antonio, TX 782241477133502
  2. Steven Argumedo, MDSan Antonio, TX 782241780864751
  3. Jessica Buzenas, MDSan Antonio, TX 782241538311022
  4. Carlos Correa, MDSan Antonio, TX 782241629065776
  5. Amanda CruzSan Antonio, TX 782241427684430
  6. Edwin Davila, DOSan Antonio, TX 782241811576572
  7. Raul Gaona, M.D.San Antonio, TX 782241356384259
  8. Andrew Nassralla, DOSan Antonio, TX 782241467197608

Common questions

What is Ricardo A. Montemayor, MD's NPI number?

Ricardo A. Montemayor, MD's National Provider Identifier (NPI) is 1497720338, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ricardo A. Montemayor, MD located?

The NPPES record lists a practice address at 7719 S IH 35 Ste 212, San Antonio, TX, 78224. Phone: (303) 204-9558. Providers update this record themselves, so call before visiting.

How can I verify Ricardo A. Montemayor, MD's license?

NPPES lists Texas license number J0137, 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 Ricardo A. Montemayor, MD prescribe under Medicare Part D?

In 2024, Ricardo A. Montemayor, MD had 1,608 Medicare Part D claims for 281 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.