Doctor profile · Federal record

Dr. Monica Santiago Casiano, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Yauco, Puerto Rico, PR

  • NPI 1396920518
  • Accepts Medicare
  • 22 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
Centro Profesional del Sur, Carr. 121 Km 13.3
Yauco, Puerto Rico, PR 006980000
(787) 957-3111
Additional location
Hospital Municipal Centro Medico Cmms #79, Departamento de Medicina Interna
Sanjuan, PR 009368344
(787) 765-5147
Mailing address
Hc 4 Box 12491
Yauco, PR 006989515

Credentials & registration

NPPES · NUCC
NPI registered
January 2008 — 18 yrs on file
Profile last updated
December 13, 2021
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Puerto Rico #17172

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396920518. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,386
Transactions
60
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 16 $382.52
Eli Lilly Export S.A. Puerto Rico Branch 9 $228.87
E.R. Squibb & Sons, L.L.C. 8 $178.33
Abbvie INC. 5 $123.15
Amgen INC. 4 $82.12
Genentech USA, INC. 4 $80.24
Pbg Puerto Rico LLC 3 $66.84
Exelixis INC. 2 $51.00
Genzyme Corporation 2 $46.94
Regeneron Healthcare Solutions, INC. 2 $44.17
Sobi, INC 1 $25.98
Takeda Pharmaceuticals U.S.A., INC. 1 $24.46
Emd Serono, INC. 1 $22.74
Bayer Puerto Rico INC. 1 $14.77
Janssen Pharmaceuticals, INC 1 $13.38

By nature of payment

Food and Beverage
$1,386

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
239
Patients
0
Total drug cost
$1,090,510
Drug Type Claims Patients Total cost
Aromasin (Exemestane) Brand 57 0 $66,883
Anastrozole Generic 37 0 $313
Revlimid (Lenalidomide) Brand 29 0 $506,614
Pantoprazole Sodium Generic 27 0 $129
Arimidex (Anastrozole) Brand 22 0 $36,601
Prednisone Generic 22 0 $97
Famotidine Generic 18 0 $192
Cabometyx (Cabozantinib S-Malate) Brand 14 0 $357,052
Tasigna (Nilotinib Hcl) Brand 13 0 $122,629

Frequently asked questions

Auto-generated from federal data
What is Dr. Monica Santiago Casiano's medical specialty?
Dr. Monica Santiago Casiano practices Hematology & Oncology Physician in Yauco, Puerto Rico, PR.
Where does Dr. Monica Santiago Casiano practice?
Dr. Monica Santiago Casiano practices at Centro Profesional del Sur, Yauco, Puerto Rico, PR 006980000. Office phone: 7879573111.
What is Dr. Monica Santiago Casiano's NPI?
Dr. Monica Santiago Casiano's National Provider Identifier (NPI) is 1396920518, issued by NPPES.
Does Dr. Monica Santiago Casiano accept Medicare assignment?
Yes. Dr. Monica Santiago Casiano accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.