Andrew Leon Kau, MD
Allergy & Immunology (Internal Medicine) Physician · Saint Louis, MO
Andrew Leon Kau, MD is an allergy & immunology (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1215073580, issued on Jan 30, 2007. Check the license (Missouri 2009001739, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Andrew Leon Kau
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License number
- 2009001739 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1110 Highlands Plaza Dr E, Saint Louis, MO 63110
- Phone
- (314) 996-8670
- Enumerated
- Jan 30, 2007
- Record last updated
- Apr 17, 2025
- Fax
- (866) 362-4984
- Medicaid ID
- 205578404 MO
- Medicare enrollment
- Enrolled (PECOS I20110610000262); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology (internal medicine) physician records → All 28 in Missouri → Look up another NPI →
Also registered at 1110 Highlands Plaza Dr E
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khaled Abdel-Hamid, MDAllergy & Immunology Physician1679591572
- Megan Bagheri, FNPFamily Nurse Practitioner1700275120
- Thomas Bartholet, MDInternal Medicine Physician1750325742
- Matthew Bonzelet, M.D.Internal Medicine Physician1861626574
- William Bowen, MDCardiovascular Disease Physician1609815950
- Margaret Gray-Swain, MDObstetrics & Gynecology Physician1245267178
Verify Andrew Leon Kau 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 2009001739Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024
176 Medicare Part D claims for 32 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Albuterol Sulfate Hfa22 claims
- Montelukast Sodium20 claims
- Azelastine Hcl17 claims
- Dupixent Syringe14 claims
- Famotidine13 claims
- Symbicort12 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).
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).
Andrew Leon Kau among 28 allergy & immunology (internal medicine) physician records in Missouri
Andrew Leon Kau, MD is one of 28 allergy & immunology (internal medicine) physician records with a practice address in Missouri. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 50% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2006 · median 2006 among the 20 with a school on file
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology (Internal Medicine) Physician providers in Missouri
There are 28 allergy & immunology (internal medicine) physician records in Missouri.
All 28 in Missouri → Every provider in Saint Louis → Allergy & Immunology (Internal Medicine) Physician nationwide →
The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes
- Mark Dykewicz, MDSaint Louis, MO 631101518971092
- Peggy Kendall, MDSaint Louis, MO 631101306938725
- Anthony Kulczycki, MDSaint Louis, MO 631101104843630
- Katharine Nehme, MDSaint Louis, MO 631101194385153
- Raymond Slavin, MDSaint Louis, MO 631101780694877
- Aaron Ver Heul, MDSaint Louis, MO 631101023457132
- Ofer Zimmerman, MDSaint Louis, MO 631101982128708
- Christopher Rigell, MDSaint Louis, MO 631061396184545
Common questions
What is Andrew Leon Kau, MD's NPI number?
Andrew Leon Kau, MD's National Provider Identifier (NPI) is 1215073580, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Leon Kau, MD located?
The NPPES record lists a practice address at 1110 Highlands Plaza Dr E, Saint Louis, MO, 63110. Phone: (314) 996-8670. Providers update this record themselves, so call before visiting.
How can I verify Andrew Leon Kau, MD's license?
NPPES lists Missouri license number 2009001739, 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 Andrew Leon Kau, MD prescribe under Medicare Part D?
In 2024, Andrew Leon Kau, MD had 176 Medicare Part D claims for 32 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. Part D covers Medicare prescriptions only.
What is Andrew Leon Kau, 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.