NPPES file of Aug 9, 2026

Conner Holthaus, MD

Emergency Medicine Physician · Blue Springs, MO

Conner Holthaus, MD is an emergency medicine physician with a practice address in Blue Springs, Missouri, and NPI 1851929145, issued on Mar 31, 2020. Check the license (Missouri 2022045946, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851929145
Name
Conner Holthaus
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
2022045946 MO
04-47957 KS
Self-reported in NPPES; status is on the state search
Practice location
201 NW RD Mize Road, Blue Springs, MO 64014
Phone
(816) 548-2600
Enumerated
Mar 31, 2020
Record last updated
Nov 27, 2023
Medicare enrollment
Enrolled (PECOS I20230908001161); accepts Medicare assignment
Medical or professional school
Western Michigan Un Homer Stryker School Of Med, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 201 NW RD Mize Road

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Deanna Bafus, NP-CFamily Health Clinical Nurse Specialist1831680842
  2. Nathan Beasley, PA-CPhysician Assistant1255096491
  3. Caitlin Rooney, DOSurgery Physician1881000529

Verify Conner Holthaus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2022045946
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4% more Medicare Part D claims than the average emergency medicine physician in 2024

235 Medicare Part D claims for 165 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 34 claims were for opioids.

  1. Conner Holthaus235
  2. Specialty average226

Most prescribed

  1. Prednisone24 claims
  2. Oxycodone Hcl23 claims
  3. Cefpodoxime Proxetil15 claims
  4. Tizanidine Hcl14 claims
  5. Doxycycline Hyclate12 claims
  6. Albuterol Sulfate Hfa11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 68.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score76.6
  2. Costout of 100 · 30%30.4
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities30 of 40 points · 15%75.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 3 group practices

  1. Emergency Medicine Services OF MO LLCIndependence, MO
  2. Omni Emergency Medicine LLCKansas City, MO
  3. University Health PhysiciansKansas City, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Conner Holthaus among 1,405 emergency medicine physician records in Missouri

Conner Holthaus, MD is one of 1,405 emergency medicine physician records with a practice address in Missouri. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 82% of them.

  • NPI issued2020 · 82% of these records are older, 14% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2020 · median 2012 among the 808 with a school on file
  • Record last updated2023 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Missouri

There are 1,405 emergency medicine physician records in Missouri.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Daniel Bixler, MDBlue Springs, MO 640141104818053
  2. William Galvin, DOBlue Springs, MO 640141235121914
  3. Robert Henley, MDBlue Springs, MO 640141003818592
  4. Jay Pemberton, DOBlue Springs, MO 640141700878907
  5. Mary Coltharp, MDBelton, MO 640121205818077
  6. Cecil Cook, DOBelton, MO 640121942282710
  7. Samantha Dearmon, DOBelton, MO 640121164913240
  8. David Macrae, MDBelton, MO 640121801864665

Common questions

What is Conner Holthaus, MD's NPI number?

Conner Holthaus, MD's National Provider Identifier (NPI) is 1851929145, issued on Mar 31, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Conner Holthaus, MD located?

The NPPES record lists a practice address at 201 NW RD Mize Road, Blue Springs, MO, 64014. Phone: (816) 548-2600. Providers update this record themselves, so call before visiting.

How can I verify Conner Holthaus, MD's license?

NPPES lists Missouri license number 2022045946, 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 Conner Holthaus, MD prescribe under Medicare Part D?

In 2024, Conner Holthaus, MD had 235 Medicare Part D claims for 165 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Conner Holthaus, MD's MIPS final score?

The 2023 MIPS final score is 68.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.