Doctor profile · Federal record

Dr. Guillermo Montanez, MD

Specialist · McAllen, TX

  • NPI 1902878721
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1200 E Savannah Ave, Suite 18
McAllen, TX 785031727
(956) 631-8354
fax (956) 631-8441
Mailing address
Po Box 2105
McAllen, TX 785052105

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
July 18, 2008
Specialty taxonomy
174400000X — NUCC code
State license (1)
Texas #H3711
Medicaid
TX #135513309

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1902878721. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
27
Distinct HCPCS
1
Medicare allowed
$2,347
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 27 15 $87

In context: peer comparison

Among 3 peers in McAllen Specialist, average services per provider: 103. This provider delivers 0.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
108
Patients
12
Total drug cost
$34,778
Drug Type Claims Patients Total cost
Myrbetriq (Mirabegron) Brand 27 0 $23,410
Solifenacin Succinate Generic 27 0 $1,472
Estradiol Generic 25 12 $2,283
Osphena (Ospemifene) Brand 16 0 $4,802
Tolterodine Tartrate ER (Tolterodine Tartrate) Brand 13 0 $2,809

Frequently asked questions

Auto-generated from federal data
What is Dr. Guillermo Montanez's medical specialty?
Dr. Guillermo Montanez practices Specialist in McAllen, TX.
Where does Dr. Guillermo Montanez practice?
Dr. Guillermo Montanez practices at 1200 E Savannah Ave, McAllen, TX 785031727. Office phone: 9566318354.
What is Dr. Guillermo Montanez's NPI?
Dr. Guillermo Montanez's National Provider Identifier (NPI) is 1902878721, issued by NPPES.
What procedures does Dr. Guillermo Montanez commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.