Doctor profile · Federal record

Dr. Ruben Ruiz, M.D.

Specialist (CMS: Internal Medicine) · Rialto, CA

  • NPI 1912901471
  • MIPS 90.7 / 100 · 2023
  • 44 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
436 S Riverside Ave
Rialto, CA 92376
(909) 877-8868
fax (909) 877-0008
Additional location
403 W F St
Ontario, CA 917623207
(909) 988-3288
fax (909) 988-6767
Additional location
833 W Whittier Blvd
Montebello, CA 906404735
(323) 712-4811
fax (323) 544-6488
Show 1 more location
Additional location
901 W Whittier Blvd
Montebello, CA 906404737
(323) 728-8588
fax (323) 728-4444
Mailing address
833 W Whittier Blvd
Montebello, CA 906404735

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
January 16, 2019
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
174400000X — NUCC code
State license (1)
California #G052245
Medicaid (3)
CA #GR0060100 · CA #GR0060102 · CA #GR0060101

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912901471. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
6,458
Distinct HCPCS
10
Medicare allowed
$274,366
HCPCS Description Services Patients Avg allowed
J1100 Injection, dexamethasone sodium phosphate, 1 mg 1,339 103 $0
99214 Established patient office or other outpatient visit, 30-39 minutes 1,107 378 $126
96372 Injection of drug or substance under skin or into muscle 630 192 $14
36415 Insertion of needle into vein for collection of blood sample 582 350 $8
J0696 Injection, ceftriaxone sodium, per 250 mg 521 98 $0
J1885 Injection, ketorolac tromethamine, per 15 mg 427 119 $1
99213 Established patient office or other outpatient visit, 20-29 minutes 387 254 $90
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 195 195 $127
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 149 37 $1
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 106 91 $14

In context: peer comparison

Among 1 peers in Rialto Specialist, average services per provider: 189. This provider delivers 34× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$451
Transactions
19
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Bayer Healthcare Pharmaceuticals INC. 4 $110.29
Ironwood Pharmaceuticals, INC 4 $102.53
Amgen INC. 4 $82.49
Sumitomo Pharma America, INC. 2 $51.93
Abbvie INC. 2 $44.85
Lilly USA, LLC 1 $23.41
Idorsia Pharmaceuticals US INC 1 $19.70
GlaxoSmithKline, LLC. 1 $15.67

By nature of payment

Food and Beverage
$451

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,228
Patients
476
Total drug cost
$115,356
Drug Type Claims Patients Total cost
Metformin Hcl Generic 151 50 $1,333
Losartan Potassium Generic 123 45 $1,875
Atorvastatin Calcium Generic 116 56 $1,749
Ibuprofen Generic 103 46 $870
Lisinopril Generic 102 44 $1,005
Levothyroxine Sodium Generic 94 39 $1,678
Omeprazole Generic 91 32 $1,093
Glipizide Generic 72 16 $452
Tamsulosin Hcl Generic 72 25 $901
Amlodipine Besylate Generic 66 33 $959

Frequently asked questions

Auto-generated from federal data
What is Dr. Ruben Ruiz's medical specialty?
Dr. Ruben Ruiz practices Specialist in Rialto, CA.
Where does Dr. Ruben Ruiz practice?
Dr. Ruben Ruiz practices at 436 S Riverside Ave, Rialto, CA 92376. Office phone: 9098778868.
What is Dr. Ruben Ruiz's NPI?
Dr. Ruben Ruiz's National Provider Identifier (NPI) is 1912901471, issued by NPPES.
Does Dr. Ruben Ruiz accept Medicare assignment?
Dr. Ruben Ruiz does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Ruben Ruiz commonly perform?
Top Medicare-reported procedures in 2023: Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100); Established patient office or other outpatient visit (HCPCS 99214); Injection of drug or substance under skin or into muscle (HCPCS 96372). Source: CMS Medicare Physician & Other Practitioners file.