Doctor profile · Federal record
Dr. Allan Santiago
Gastroenterology Physician (CMS: Gastroenterology) · San Juan, PR
- NPI 1457327306
- Accepts Medicare
- 45 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
29 Calle Washington Ste 705, Ashford Medical Center
San Juan, PR 009071521
(787) 721-7789
fax (787) 725-5589 - Mailing address
-
Calle Poppy B -74, Parque Forestal
Rio Piedras, PR 00926
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- January 22, 2014
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Puerto Rico #7360
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457327306. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
128
Distinct HCPCS
4
Medicare allowed
$14,332
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 64 | 42 | $89 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 31 | 29 | $56 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 21 | 21 | $111 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 12 | 12 | $378 |
In context: peer comparison
Among 18 peers in this city , average services per provider: 40. This provider delivers 3.2× the peer median.Open Payments
Industry payments received
All-time total
$50
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| E.R. Squibb & Sons, L.L.C. | 2 | $50.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,033
Patients
588
Total drug cost
$42,625
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Famotidine | Generic | 381 | 146 | $4,255 |
| Naloxone Hcl | Generic | 174 | 165 | $2,320 |
| Suprep (Sodium, Potassium,mag Sulfates) | Brand | 126 | 125 | $14,583 |
| Pantoprazole Sodium | Generic | 98 | 35 | $695 |
| Midazolam Hcl (Midazolam Hcl/Pf) | Brand | 50 | 47 | $149 |
| Omeprazole | Generic | 50 | 23 | $373 |
| Sucralfate | Generic | 34 | 16 | $6,058 |
| Mesalamine Dr (Mesalamine) | Brand | 31 | 0 | $9,821 |
| Esomeprazole Magnesium | Generic | 29 | 0 | $1,070 |
| Amoxicillin | Generic | 17 | 16 | $155 |
Frequently asked questions
What is Dr. Allan Santiago's medical specialty?
Dr. Allan Santiago practices Gastroenterology Physician in San Juan, PR.
Where does Dr. Allan Santiago practice?
Dr. Allan Santiago practices at 29 Calle Washington Ste 705, San Juan, PR 009071521. Office phone: 7877217789.
What is Dr. Allan Santiago's NPI?
Dr. Allan Santiago's National Provider Identifier (NPI) is 1457327306, issued by NPPES.
Does Dr. Allan Santiago accept Medicare assignment?
Yes. Dr. Allan Santiago accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Allan Santiago commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.