Doctor profile · Federal record

Dr. Jacob Koopman, DO

Internal Medicine Physician (CMS: Internal Medicine) · Fountain Valley, CA

  • NPI 1942798061
  • Accepts Medicare
  • MIPS 75.3 / 100 · 2023
  • 8 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
17360 Brookhurst St
Fountain Valley, CA 927083720
(714) 665-1797
fax (714) 665-4680

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
June 29, 2021
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #20A17659

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942798061. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
294
Distinct HCPCS
4
Medicare allowed
$36,350
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 118 50 $127
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 81 24 $85
99239 Hospital discharge day management, more than 30 minutes 49 47 $124
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 46 45 $182

In context: peer comparison

Among 36 peers in this city , average services per provider: 345. This provider delivers 0.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$99
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Janssen Pharmaceuticals, Inc 1 $98.91

By nature of payment

Food and Beverage
$99

Frequently asked questions

Auto-generated from federal data
What is Dr. Jacob Koopman's medical specialty?
Dr. Jacob Koopman practices Internal Medicine Physician in Fountain Valley, CA.
Where does Dr. Jacob Koopman practice?
Dr. Jacob Koopman practices at 17360 Brookhurst St, Fountain Valley, CA 927083720. Office phone: 7146651797.
What is Dr. Jacob Koopman's NPI?
Dr. Jacob Koopman's National Provider Identifier (NPI) is 1942798061, issued by NPPES.
Does Dr. Jacob Koopman accept Medicare assignment?
Yes. Dr. Jacob Koopman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jacob Koopman commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.