Doctor profile · Federal record

Dr. Ubaldo Santiago Buono, M.D.

Geriatric Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · San Juan, PR

  • NPI 1104825611
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1304 Wilson Street, Cond El Vigia Apt 8 S
San Juan, PR 009072243
(787) 536-2033
fax (787) 722-2374
Mailing address
1304 Calle Wilson Apt 8S
San Juan, PR 009072243

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
June 10, 2024
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
207RG0300X — NUCC code
State license (1)
Puerto Rico #13571

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104825611. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
133
Distinct HCPCS
3
Medicare allowed
$15,436
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 103 20 $115
99238 Hospital discharge day management, 30 minutes or less 17 16 $79
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 13 12 $171

In context: peer comparison

Among 1 peers in this city , average services per provider: 44. This provider delivers 3.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$526
Transactions
10
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, Inc 7 $257.87
Boston Scientific Corporation 1 $132.60
Medtronic, Inc. 1 $110.64
PBG PUERTO RICO LLC 1 $25.00

By nature of payment

Food and Beverage
$526

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,128
Patients
1,252
Total drug cost
$42,972
Drug Type Claims Patients Total cost
Famotidine Generic 583 283 $5,260
Atorvastatin Calcium Generic 338 139 $3,811
Metformin Hcl Generic 263 90 $1,522
Simvastatin Generic 260 90 $1,537
Gabapentin Generic 245 95 $3,634
Losartan Potassium Generic 219 96 $3,971
Pantoprazole Sodium Generic 165 37 $1,034
Amlodipine Besylate Generic 163 61 $650
Hydrochlorothiazide Generic 151 55 $710
Clopidogrel (Clopidogrel Bisulfate) Brand 138 57 $1,259

Frequently asked questions

Auto-generated from federal data
What is Dr. Ubaldo Santiago Buono's medical specialty?
Dr. Ubaldo Santiago Buono practices Geriatric Medicine (Internal Medicine) Physician in San Juan, PR.
Where does Dr. Ubaldo Santiago Buono practice?
Dr. Ubaldo Santiago Buono practices at 1304 Wilson Street, San Juan, PR 009072243. Office phone: 7875362033.
What is Dr. Ubaldo Santiago Buono's NPI?
Dr. Ubaldo Santiago Buono's National Provider Identifier (NPI) is 1104825611, issued by NPPES.
Does Dr. Ubaldo Santiago Buono accept Medicare assignment?
Yes. Dr. Ubaldo Santiago Buono accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ubaldo Santiago Buono commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99238); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.