Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Brian Haslag, DO

Individual provider Hospitalist Physician · NPI 1861978074

Brian Haslag, DO is a Hospitalist in Jefferson City, Missouri. Qualified in 2018, 8 years ago. Practices with The Curators of the University of Missouri, a 1,093-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
8
Licensed in
MO
In the registry since
2018
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

1125 Madison St
Jefferson City, MO 65101-5227
Phone: (573) 632-5000
Fax: (573) 634-2033
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 2019033221 (MO)

Record details

NPI number1861978074
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 11, 2018
Last updated in NPPESJune 17, 2026
Certification dateJune 17, 2026
Mailing addressPo Box 843966, Kansas City, MO 64184-3966

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice The Curators Of The University Of Missouri — 1093 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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