William Louis Hollabaugh, MD
Pediatric Sports Medicine Physician · O Fallon, MO
William Louis Hollabaugh, MD is a pediatric sports medicine physician with a practice address in O Fallon, Missouri, and NPI 1659868040, issued on Apr 20, 2018. Check the license (Missouri 2024016238, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- William Louis Hollabaugh
- Credential
- MD
- Primary taxonomy
- Pediatric Sports Medicine Physician 2080S0010X
- License number
- 2024016238 MO
Self-reported in NPPES; status is on the state search - Practice location
- 20 Progress Point Pkwy, O Fallon, MO 63368
- Phone
- (314) 514-3500
- Enumerated
- Apr 20, 2018
- Record last updated
- Apr 17, 2025
- Fax
- (314) 878-7678
- Medicaid ID
- 200148295 MO
- Medicare enrollment
- Enrolled (PECOS I20241010003985); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2014
- Entity
- Type 1 · individual
8 nearest pediatric sports medicine physician records → All 13 in Missouri → Look up another NPI →
Also registered at 20 Progress Point Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Randy Agolia, MDPediatrics Physician1972575439
- Sunil Apte, MDUrology Physician1598792269
- Jeannine Ayers, ANPAdult Health Nurse Practitioner1831209840
- Acel Camfield, PAPhysician Assistant1982215471
- Angela Clercx, NP-CFamily Nurse Practitioner1477910461
- Colin Dolan, MDPediatrics Physician1629700794
Verify William Louis Hollabaugh 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 2024016238Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $166.17
2 payments; by number, the most common kind was food and beverage; the largest payer was Djo, LLC. The 57 providers of this specialty with any payment received $242.26 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
- Washington UniversityO Fallon, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Louis Hollabaugh among 13 pediatric sports medicine physician records in Missouri
William Louis Hollabaugh, MD is one of 13 pediatric sports medicine physician records with a practice address in Missouri. 54% 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 77% of them.
- NPI issued2018 · 77% of these records are older, 15% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Record last updated2025 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080S0010X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Sports Medicine Physician providers in Missouri
There are 13 pediatric sports medicine physician records in Missouri.
All 13 in Missouri → Every provider in O Fallon → Pediatric Sports Medicine Physician nationwide →
The 8 pediatric sports medicine physician records with the nearest ZIP codes
- Brandon Larkin, MDSaint Peters, MO 633761508061540
- Kayla Daniel, MDSaint Louis, MO 631291750743233
- Terra Blatnik, MDSaint Louis, MO 631101508066317
- Matthew Bayes, MDChesterfield, MO 630171396728002
- Mark Halstead, MDChesterfield, MO 630171598783227
- Gregory Canty, M.D.Kansas City, MO 641081841236783
- Megan Euerle, DOKansas City, MO 641081043949209
- Brian Harvey, D.O.Kansas City, MO 641081669633160
Common questions
What is William Louis Hollabaugh, MD's NPI number?
William Louis Hollabaugh, MD's National Provider Identifier (NPI) is 1659868040, issued on Apr 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is William Louis Hollabaugh, MD located?
The NPPES record lists a practice address at 20 Progress Point Pkwy, O Fallon, MO, 63368. Phone: (314) 514-3500. Providers update this record themselves, so call before visiting.
How can I verify William Louis Hollabaugh, MD's license?
NPPES lists Missouri license number 2024016238, 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.
What is William Louis Hollabaugh, MD's MIPS final score?
The 2023 MIPS final score is 97.1 of 100. 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.