Doctor profile · Federal record

Dr. Daniel Klaristenfeld, MD

Surgery Physician (CMS: Colorectal Surgery (Proctology)) · Fontana, CA

  • NPI 1780732701
  • Accepts Medicare
  • 25 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9961 Sierra Ave
Fontana, CA 923356720
(909) 427-3910

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
December 3, 2021
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
208600000X — NUCC code
State license (1)
California #A93651

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780732701. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$10,133
Transactions
12
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Ethicon INC. 10 $10,050.00
Inspire Medical Systems, INC. 2 $82.84

By nature of payment

Consulting Fee
$10,050
Food and Beverage
$83

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
138
Patients
108
Total drug cost
$1,472
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 31 16 $268
Ibuprofen Generic 27 25 $375
Metronidazole Generic 26 24 $151
Tramadol Hcl Generic 25 25 $161
Erythromycin (Erythromycin Base) Brand 18 18 $331
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 11 0 $186

Frequently asked questions

Auto-generated from federal data
What is Dr. Daniel Klaristenfeld's medical specialty?
Dr. Daniel Klaristenfeld practices Surgery Physician in Fontana, CA.
Where does Dr. Daniel Klaristenfeld practice?
Dr. Daniel Klaristenfeld practices at 9961 Sierra Ave, Fontana, CA 923356720. Office phone: 9094273910.
What is Dr. Daniel Klaristenfeld's NPI?
Dr. Daniel Klaristenfeld's National Provider Identifier (NPI) is 1780732701, issued by NPPES.
Does Dr. Daniel Klaristenfeld accept Medicare assignment?
Yes. Dr. Daniel Klaristenfeld accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.