Doctor profile · Federal record

Dr. Alwin Lopez-Toro

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

  • NPI 1962820506
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1123 N Main Ave Ste 120
San Antonio, TX 782124738
(210) 226-2001
fax (210) 616-0705
Mailing address
16620 N US Highway 281 Ste 300
San Antonio, TX 782322679

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
March 13, 2025
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State licenses (2)
Texas #R9247 · Texas #BP10058787

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1962820506. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,135
Distinct HCPCS
10
Medicare allowed
$147,282
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 407 118 $76
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 209 78 $114
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 176 32 $338
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 94 17 $56
99214 Established patient office or other outpatient visit, 30-39 minutes 89 54 $112
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 49 48 $125
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 34 34 $167
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 33 14 $45
99213 Established patient office or other outpatient visit, 20-29 minutes 32 24 $79
99204 New patient office or other outpatient visit, 45-59 minutes 12 12 $159

In context: peer comparison

Among 47 peers in San Antonio Nephrology Physician, average services per provider: 133. This provider delivers 8.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$117
Transactions
6
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 1 $26.50
Boehringer Ingelheim Pharmaceuticals, INC. 1 $22.87
Lilly USA, LLC 1 $21.97
Ardelyx, INC. 1 $18.89
AstraZeneca Pharmaceuticals Lp 1 $13.86
Novo Nordisk INC 1 $13.26

By nature of payment

Food and Beverage
$117

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,395
Patients
431
Total drug cost
$143,744
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 182 63 $1,133
Chlorthalidone Generic 140 35 $2,203
Lisinopril Generic 119 37 $593
Losartan Potassium Generic 113 37 $1,392
Carvedilol Generic 103 31 $1,014
Jardiance (Empagliflozin) Brand 100 26 $88,135
Sevelamer Carbonate Generic 96 33 $36,862
Hydrochlorothiazide Generic 83 29 $458
Telmisartan Generic 78 21 $3,575
Nifedipine ER (Nifedipine) Brand 75 25 $3,908

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alwin Lopez-Toro's medical specialty?
Dr. Alwin Lopez-Toro practices Nephrology Physician in San Antonio, TX.
Where does Dr. Alwin Lopez-Toro practice?
Dr. Alwin Lopez-Toro practices at 1123 N Main Ave Ste 120, San Antonio, TX 782124738. Office phone: 2102262001.
What is Dr. Alwin Lopez-Toro's NPI?
Dr. Alwin Lopez-Toro's National Provider Identifier (NPI) is 1962820506, issued by NPPES.
Does Dr. Alwin Lopez-Toro accept Medicare assignment?
Yes. Dr. Alwin Lopez-Toro accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alwin Lopez-Toro 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); Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960). Source: CMS Medicare Physician & Other Practitioners file.