Doctor profile · Federal record

Dr. Joseph Hassler, CRNA

Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Washington, MO

  • NPI 1881932960
  • Accepts Medicare
  • 19 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
901 E 5Th St
Washington, MO 630903127
(636) 239-8000
Additional location
751 Sappington Bridge RD
Sullivan, MO 630802354
(573) 468-1343

Credentials & registration

NPPES · NUCC
NPI registered
January 2013 — 13 yrs on file
Profile last updated
November 5, 2021
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
367500000X — NUCC code
State license (1)
Missouri #2013001823

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1881932960. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
40
Distinct HCPCS
3
Medicare allowed
$3,936
HCPCS Description Services Patients Avg allowed
01402 Anesthesia for procedure for total knee joint replacement 15 15 $155
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 13 13 $60
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 12 12 $69

In context: peer comparison

Among 3 peers in this city , average services per provider: 15. This provider delivers 2.7× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Joseph Hassler's medical specialty?
Dr. Joseph Hassler practices Certified Registered Nurse Anesthetist in Washington, MO.
Where does Dr. Joseph Hassler practice?
Dr. Joseph Hassler practices at 901 E 5Th St, Washington, MO 630903127. Office phone: 6362398000.
What is Dr. Joseph Hassler's NPI?
Dr. Joseph Hassler's National Provider Identifier (NPI) is 1881932960, issued by NPPES.
Does Dr. Joseph Hassler accept Medicare assignment?
Yes. Dr. Joseph Hassler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Joseph Hassler commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for procedure for total knee joint replacement (HCPCS 01402); Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (HCPCS 64447); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731). Source: CMS Medicare Physician & Other Practitioners file.