Doctor profile · Federal record

Dr. Yaiza Martinez-Ortiz, MD

Gastroenterology Physician (CMS: Gastroenterology) · San Juan, PR

  • NPI 1134413701
  • Accepts Medicare
  • 15 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
29 Washington Street, Ashford Medical Center Ste 601-602
San Juan, PR 00907
(787) 249-9560
fax (509) 275-5604
Mailing address
29 Calle Washington Ste 601-602
San Juan, PR 009071510

Credentials & registration

NPPES · NUCC
NPI registered
June 2011 — 15 yrs on file
Profile last updated
November 28, 2023
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Puerto Rico #18688

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134413701. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
15
Distinct HCPCS
1
Medicare allowed
$1,278
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 15 12 $85

In context: peer comparison

Among 18 peers in San Juan Gastroenterology Physician, average services per provider: 40. This provider delivers 0.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$232
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Tempus Ai, INC 2 $122.20
E.R. Squibb & Sons, L.L.C. 2 $87.50
Abbvie INC. 1 $21.87

By nature of payment

Food and Beverage
$232

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
374
Patients
217
Total drug cost
$8,633
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 136 58 $1,072
Famotidine Generic 74 37 $777
Suprep (Sodium, Potassium,Mag Sulfates) Brand 54 54 $6,201
Midazolam Hcl (Midazolam Hcl/Pf) Brand 49 40 $138
Fentanyl Citrate (Fentanyl Citrate/Pf) Brand 34 28 $127
Ondansetron Hcl Generic 16 0 $141
Esomeprazole Magnesium Generic 11 0 $176

Frequently asked questions

Auto-generated from federal data
What is Dr. Yaiza Martinez-Ortiz's medical specialty?
Dr. Yaiza Martinez-Ortiz practices Gastroenterology Physician in San Juan, PR.
Where does Dr. Yaiza Martinez-Ortiz practice?
Dr. Yaiza Martinez-Ortiz practices at 29 Washington Street, San Juan, PR 00907. Office phone: 7872499560.
What is Dr. Yaiza Martinez-Ortiz's NPI?
Dr. Yaiza Martinez-Ortiz's National Provider Identifier (NPI) is 1134413701, issued by NPPES.
Does Dr. Yaiza Martinez-Ortiz accept Medicare assignment?
Yes. Dr. Yaiza Martinez-Ortiz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Yaiza Martinez-Ortiz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.