Guillermo A. Cortinas, MD
Family Medicine Physician · McAllen, TX
Guillermo A. Cortinas, MD is a family medicine physician with a practice address in McAllen, Texas, and NPI 1447291638, issued on Jun 9, 2006. Check the license (Texas K6553, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Guillermo A. Cortinas
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- K6553 TX
Self-reported in NPPES; status is on the state search - Practice location
- 709 S Broadway St, McAllen, TX 78501
- Phone
- (956) 682-4605
- Enumerated
- Jun 9, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (956) 686-3955
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Verify Guillermo A. Cortinas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K6553Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
175 Medicare Part D claims for 133 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 11 claims were for opioids.
Most prescribed
- Sulfamethoxazole-Trimethoprim22 claims
- Cephalexin15 claims
- Ondansetron Odt14 claims
- Nitrofurantoin Mono-Macro13 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.
Guillermo A. Cortinas among 11,119 family medicine physician records in Texas
Guillermo A. Cortinas, MD is one of 11,119 family 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
121 family medicine physician records list a practice address in McAllen
They are 121 of the 3,518 NPPES records with a practice address in McAllen, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in McAllen → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Cayetano Barrera, MDMcAllen, TX 785011295713550
- Erasto Canales, MDMcAllen, TX 785011396713616
- Ricardo Canales, MD PAMcAllen, TX 785011023086345
- Enrique Carrasco Rojas, M.D.McAllen, TX 785011003883604
- Roberto Gonzalez, M.D.McAllen, TX 785011780662288
- Curtis Maynard, MDMcAllen, TX 785011184697773
- Ivan Melendez, M.D.McAllen, TX 785011568447233
- Armando Osio, MDMcAllen, TX 785011619954278
Common questions
What is Guillermo A. Cortinas, MD's NPI number?
Guillermo A. Cortinas, MD's National Provider Identifier (NPI) is 1447291638, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo A. Cortinas, MD located?
The NPPES record lists a practice address at 709 S Broadway St, McAllen, TX, 78501. Phone: (956) 682-4605. Providers update this record themselves, so call before visiting.
How can I verify Guillermo A. Cortinas, MD's license?
NPPES lists Texas license number K6553, 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 Guillermo A. Cortinas, MD prescribe under Medicare Part D?
In 2024, Guillermo A. Cortinas, MD had 175 Medicare Part D claims for 133 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.