Brian Haslag, DO
Hospitalist Physician · Jefferson City, MO
Brian Haslag, DO is a hospitalist physician with a practice address in Jefferson City, Missouri, and NPI 1861978074, issued on Jul 11, 2018. Check the license (Missouri 2019033221, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Brian Haslag
- Credential
- DO
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 2019033221 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1125 Madison St, Jefferson City, MO 65101
- Phone
- (573) 632-5000
- Enumerated
- Jul 11, 2018
- Record last updated
- Jun 17, 2026
- Fax
- (573) 634-2033
- Medicaid ID
- 200072135 MO
- Medicare enrollment
- Enrolled (PECOS I20210723000998); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 930 in Missouri → Look up another NPI →
Also registered at 1125 Madison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kamil Adamczewski, DOFamily Medicine Physician1902643158
- Jennifer Adelman, FNPFamily Nurse Practitioner1780105007
- Rodney Adkison, D.O.Hospitalist Physician1164538229
- Abul Ahsan, M.D.Hospitalist Physician1376711044
- Ryan Akin, MDOtolaryngology Physician1437738861
- Julie Allen, OTRLOccupational Therapist1952502239
Verify Brian Haslag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2019033221Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average hospitalist physician in 2024
467 Medicare Part D claims for 193 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Prednisone31 claims
- Furosemide26 claims
- Atorvastatin Calcium22 claims
- Cefdinir21 claims
- Metoprolol Tartrate21 claims
- Lisinopril16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $20.00
1 payment: education; the largest payer was Csl Behring. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Curators OF The University OF MissouriJefferson City, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Haslag among 930 hospitalist physician records in Missouri
Brian Haslag, DO is one of 930 hospitalist physician records with a practice address in Missouri. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 64% of them.
- NPI issued2018 · 64% of these records are older, 30% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2018 · median 2014 among the 715 with a school on file
- Record last updated2026 · 25% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 hospitalist physician records list a practice address in Jefferson City
They are 23 of the 1,414 NPPES records with a practice address in Jefferson City, and 930 hospitalist physician records in Missouri.
All 930 in Missouri → Every provider in Jefferson City → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Rodney Adkison, D.O.Jefferson City, MO 651011164538229
- Abul Ahsan, M.D.Jefferson City, MO 651011376711044
- Nathan Cofrancisco, MDJefferson City, MO 651011730102112
- Jason Collier, D.O.Jefferson City, MO 651011750692232
- Jehad Jafari, MDJefferson City, MO 651011356396634
- Aung Kyaw Min Lal, M.DJefferson City, MO 651011467686386
- Segun Oladipo, MDJefferson City, MO 651011245727684
- James Pan, DOJefferson City, MO 651011346655560
Common questions
What is Brian Haslag, DO's NPI number?
Brian Haslag, DO's National Provider Identifier (NPI) is 1861978074, issued on Jul 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Brian Haslag, DO located?
The NPPES record lists a practice address at 1125 Madison St, Jefferson City, MO, 65101. Phone: (573) 632-5000. Providers update this record themselves, so call before visiting.
How can I verify Brian Haslag, DO's license?
NPPES lists Missouri license number 2019033221, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Haslag, DO prescribe under Medicare Part D?
In 2024, Brian Haslag, DO had 467 Medicare Part D claims for 193 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.