Doctor profile · Federal record

Dr. Tim Shen, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Pulmonary Disease Physician · Student in an Organized Health Care Education/Training Program · Fontana, CA

  • NPI 1134514995
  • Accepts Medicare
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9961 Sierra Ave, Mob3, 1St Floor, Module 135
Fontana, CA 923356720
(909) 427-4873

Credentials & registration

NPPES · NUCC
NPI registered
March 2015 — 11 yrs on file
Profile last updated
November 29, 2021
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A143876

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134514995. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
19
Distinct HCPCS
1
Medicare allowed
$4,110
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 19 14 $216

In context: peer comparison

Among 18 peers in this city , average services per provider: 61. This provider delivers 0.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
404
Patients
139
Total drug cost
$221,177
Drug Type Claims Patients Total cost
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 119 52 $2,639
Spiriva Respimat (Tiotropium Bromide) Brand 79 29 $26,332
Wixela Inhub (Fluticasone Propion/Salmeterol) Brand 52 22 $15,362
Stiolto Respimat (Tiotropium Br/Olodaterol Hcl) Brand 43 18 $30,501
Prednisone Generic 29 18 $382
Montelukast Sodium Generic 22 0 $242
Pantoprazole Sodium Generic 17 0 $200
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 17 0 $122
Combivent Respimat (Ipratropium/Albuterol Sulfate) Brand 15 0 $13,583
Ofev (Nintedanib Esylate) Brand 11 0 $131,813

Frequently asked questions

Auto-generated from federal data
What is Dr. Tim Shen's medical specialty?
Dr. Tim Shen practices Internal Medicine Physician in Fontana, CA.
Where does Dr. Tim Shen practice?
Dr. Tim Shen practices at 9961 Sierra Ave, Fontana, CA 923356720. Office phone: 9094274873.
What is Dr. Tim Shen's NPI?
Dr. Tim Shen's National Provider Identifier (NPI) is 1134514995, issued by NPPES.
Does Dr. Tim Shen accept Medicare assignment?
Yes. Dr. Tim Shen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tim Shen commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.