Doctor profile · Federal record

Dr. Daniel Santillano, MD

Internal Medicine Physician (CMS: Internal Medicine) · San Antonio, TX

  • NPI 1508903899
  • Accepts Medicare
  • MIPS 35.8 / 100 · 2023
  • 21 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1150 N Loop 1604 W # 108-402
San Antonio, TX 782484552
(210) 558-6288
fax (210) 558-6289
Mailing address
1150 N Loop 1604 W Ste 108-402
San Antonio, TX 782484552

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
May 3, 2024
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Texas #N0434
Medicaid (2)
TX #198503801 · TX #198503802

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1508903899. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,646
Distinct HCPCS
6
Medicare allowed
$168,387
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 651 194 $76
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 518 179 $114
99239 Hospital discharge day management, more than 30 minutes 185 165 $110
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 128 122 $124
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 122 116 $165
99238 Hospital discharge day management, 30 minutes or less 42 42 $78

In context: peer comparison

Among 172 peers in this city , average services per provider: 137. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,876
Transactions
17
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 17 $2,876.20

By nature of payment

Travel and Lodging
$2,394
Food and Beverage
$482

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
465
Patients
359
Total drug cost
$13,404
Drug Type Claims Patients Total cost
Tramadol Hcl Generic 67 66 $165
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 47 46 $362
Metoprolol Succinate Generic 44 27 $323
Rosuvastatin Calcium Generic 43 28 $699
Clopidogrel (Clopidogrel Bisulfate) Brand 38 22 $301
Furosemide Generic 35 33 $50
Amiodarone Hcl Generic 33 29 $387
Metoprolol Tartrate Generic 32 23 $138
Atorvastatin Calcium Generic 25 16 $174
Eliquis (Apixaban) Brand 19 0 $10,394

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Daniel Santillano's medical specialty?
Dr. Daniel Santillano practices Internal Medicine Physician in San Antonio, TX.
Where does Dr. Daniel Santillano practice?
Dr. Daniel Santillano practices at 1150 N Loop 1604 W # 108-402, San Antonio, TX 782484552. Office phone: 2105586288.
What is Dr. Daniel Santillano's NPI?
Dr. Daniel Santillano's National Provider Identifier (NPI) is 1508903899, issued by NPPES.
Does Dr. Daniel Santillano accept Medicare assignment?
Yes. Dr. Daniel Santillano accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daniel Santillano commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.