Caroline Clare Horner, MD
Pediatric Allergy/Immunology Physician · Saint Louis, MO
Caroline Clare Horner, MD is a pediatric allergy/immunology physician with a practice address in Saint Louis, Missouri, and NPI 1598783060, issued on Jul 17, 2006. Check the license (Missouri 2006007899, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Caroline Clare Horner
- Credential
- MD
- Primary taxonomy
- Pediatric Allergy/Immunology Physician 2080P0201X
- License number
- 2006007899 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Childrens PL, Saint Louis, MO 63110
- Phone
- (314) 454-2468
- Enumerated
- Jul 17, 2006
- Record last updated
- Apr 17, 2025
- Fax
- (314) 454-2524
- Medicaid ID
- 203737903 MO
- Medicare enrollment
- Enrolled (PECOS I20080725000750); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest pediatric allergy/immunology physician records → All 27 in Missouri → Look up another NPI →
Also registered at 1 Childrens PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mohamed Abdelbaki, MDPediatric Hematology & Oncology Physician1508021361
- Christi Abeln, PNPPediatric Nurse Practitioner1023034253
- Loren Abernathy, PNPPediatric Nurse Practitioner1215583117
- Freddy-May Abisamra, CGCGenetic Counselor (M.S.)1306538111
- Manjusha Abraham, MDPediatric Critical Care Medicine Physician1508126699
- Philip Abraham, MDHospitalist Physician1720309016
Verify Caroline Clare Horner 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 2006007899Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average pediatric allergy/immunology physician in 2024
11 Medicare Part D claims, against an average of 259 among the 198 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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): 79.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $155.66
3 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 289 providers of this specialty with any payment received $7,101.54 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 UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caroline Clare Horner among 27 pediatric allergy/immunology physician records in Missouri
Caroline Clare Horner, MD is one of 27 pediatric allergy/immunology physician records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 41% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated2000 · median 1996 among the 11 with a school on file
- Record last updated2025 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0201X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Allergy/Immunology Physician providers in Missouri
There are 27 pediatric allergy/immunology physician records in Missouri.
All 27 in Missouri → Every provider in Saint Louis → Pediatric Allergy/Immunology Physician nationwide →
The 8 pediatric allergy/immunology physician records with the nearest ZIP codes
- Avraham Beigelman, MDSaint Louis, MO 631101699940049
- Gordon Bloomberg, MDSaint Louis, MO 631101619993920
- Ray Davis, MDSaint Louis, MO 631101821037334
- Alexa Doss, MDSaint Louis, MO 631101073964722
- Alysa Ellis, MDSaint Louis, MO 631101528237633
- Gary Goodman, MDSaint Louis, MO 631101811999485
- William Johnson, MDSaint Louis, MO 631101669476495
- Michele Kemp, MDSaint Louis, MO 631101104828771
Common questions
What is Caroline Clare Horner, MD's NPI number?
Caroline Clare Horner, MD's National Provider Identifier (NPI) is 1598783060, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Clare Horner, MD located?
The NPPES record lists a practice address at 1 Childrens PL, Saint Louis, MO, 63110. Phone: (314) 454-2468. Providers update this record themselves, so call before visiting.
How can I verify Caroline Clare Horner, MD's license?
NPPES lists Missouri license number 2006007899, 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 Caroline Clare Horner, MD prescribe under Medicare Part D?
In 2024, Caroline Clare Horner, MD had 11 Medicare Part D claims; the average among pediatric allergy/immunology physician prescribers was 259. Part D covers Medicare prescriptions only.
What is Caroline Clare Horner, MD's MIPS final score?
The 2023 MIPS final score is 79.3 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.