Allergists (Internal Medicine) in Missouri
Data updated monthly · Last refresh October 2026
28 Allergy & Immunology (Internal Medicine) providers practice in Missouri, including 15 (54%) offering telehealth. The largest concentration is in Saint Louis. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
28providers
15telehealth
Saint Louistop city
Allergy & Immunology (Internal Medicine) by city in Missouri
Choose a city to see providers there.
Where Allergists (Internal Medicine) in Missouri practice
From CMS Medicare enrollment records covering 20 of the 28 providers listed here (71%). Providers who do not bill Medicare are not included in these figures.
10%solo or small practice (under 10 clinicians)
25%mid-size group (10 to 99)
65%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Allergists (Internal Medicine) | All clinicians in group | Main city |
| Washington University | 9 | 2,968 | Saint Louis |
| Ssm Health Care Group | 3 | 929 | Saint Louis |
| Kansas City Physician Partners Inc. | 2 | 17 | Kansas City |
| Allergy, Asthma and Sinus Care Center, LLC | 2 | 11 | Saint Louis |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Allergists (Internal Medicine) affiliated |
| Barnes Jewish Hospital | Saint Louis | Nonprofit | 4 of 5 | 10 |
| Barnes-Jewish West County Hospital | Creve Coeur | Nonprofit | 5 of 5 | 9 |
| Mercy Hospital St Louis | Saint Louis | Nonprofit | 4 of 5 | 4 |
| Ssm Health Saint Louis University Hospital | Saint Louis | Nonprofit | 1 of 5 | 3 |
| Missouri Baptist Medical Center | Saint Louis | Nonprofit | 5 of 5 | 3 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Allergy & Immunology (Internal Medicine) providers in Missouri
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. John Wood, MDChesterfield, MO · $683 in drug and device payments (2025) ·
(317) 878-6260 Dr. Susan Schneider, M.D.Chesterfield, MO · No drug or device payments recorded (2025) ·
(314) 205-6600 Dr. Lanny Rosenwasser, MDKansas City, MO · $203 in drug and device payments (2025) ·
(816) 404-1000 Dr. Manali ShahKansas City, MO · $211 in drug and device payments (2025) ·
(312) 942-5000 Dr. Neha Patel, MDKansas City, MO · $186 in drug and device payments (2025) · Telehealth ·
(913) 439-7457 Dr. Travis Sifers, M.D.Kansas City, MO · $17 in drug and device payments (2025) ·
(816) 531-0930 Dr. Lawrence Ciesemier, D.OKirksville, MO · $1,662 in drug and device payments (2025) ·
(660) 627-2553 Dr. Aaron Ver Heul, MDSaint Louis, MO · $48 in drug and device payments (2025) ·
(314) 996-8670 Dr. Andrew Kau, MDSaint Louis, MO · $16 in drug and device payments (2025) · Telehealth ·
(314) 996-8670 Dr. Anthony Kulczycki, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 273-5838 Dr. Armen Sanosyan, MDSaint Louis, MO · No drug or device payments recorded (2025) · Telehealth ·
(314) 996-8670 Dr. Barbara Jost, MDSaint Louis, MO · $2,500 in drug and device payments (2025) · Telehealth ·
(314) 542-0606 Dr. Cheshil Dixit, MDSaint Louis, MO · $1,339 in drug and device payments (2025) · Telehealth ·
(314) 849-8700 Dr. Christopher Rigell, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 652-4100 Dr. H Wedner, MDSaint Louis, MO · $58,519 in drug and device payments (2025) · Telehealth ·
(314) 996-8670 Dr. James Temprano, MDSaint Louis, MO · $753 in drug and device payments (2025) ·
(314) 849-8700 Dr. Jennifer Monroy, MDSaint Louis, MO · $1,383 in drug and device payments (2025) · Telehealth ·
(314) 996-8670 Dr. John Salomone, MDSaint Louis, MO · $118 in drug and device payments (2025) · Telehealth ·
(314) 617-2355 Dr. Katharine Nehme, MDSaint Louis, MO · $122 in drug and device payments (2025) · Telehealth ·
(314) 996-8670 Dr. Mark Dykewicz, MDSaint Louis, MO · $89 in drug and device payments (2025) · Telehealth ·
(314) 977-9050 Dr. Maya Jerath, MDSaint Louis, MO · $536 in drug and device payments (2025) · Telehealth ·
(314) 996-8670 Dr. Ofer Zimmerman, MDSaint Louis, MO · $37 in drug and device payments (2025) · Telehealth ·
(314) 996-8670 Dr. Omar Elsayed-ali, MDSaint Louis, MO · No drug or device payments recorded (2025) · Telehealth ·
(314) 996-8670 Dr. Peggy Kendall, MDSaint Louis, MO · $20,297 in drug and device payments (2025) ·
(314) 996-8670 Dr. Raymond Slavin, MDSaint Louis, MO · $107 in drug and device payments (2025) ·
(314) 977-8827 Dr. Shirley Joo, MDSaint Louis, MO · No drug or device payments recorded (2025) · Telehealth ·
(314) 251-6382 Dr. Tiffany Dy, MDSaint Louis, MO · $87 in drug and device payments (2025) · Telehealth ·
(314) 996-8670 Dr. Seth Knight, MDSpringfield, MO · $3,157 in drug and device payments (2025) ·
(417) 875-3742 Common questions
How many Allergy & Immunology (Internal Medicine) providers are in Missouri?There are 28 Allergy & Immunology (Internal Medicine) providers with active NPI records practicing in Missouri, according to federal NPPES data refreshed monthly.
Do Allergy & Immunology (Internal Medicine) providers in Missouri offer telehealth?Yes. 15 of the 28 Allergy & Immunology (Internal Medicine) providers in Missouri (about 54%) report offering telehealth services in CMS data.
Which cities in Missouri have the most Allergy & Immunology (Internal Medicine) providers?Saint Louis (20), Kansas City (4), Chesterfield (2) have the highest concentration of Allergy & Immunology (Internal Medicine) providers in Missouri.
How many Allergy & Immunology (Internal Medicine) providers in Missouri received drug or device company payments?22 of 28 Allergy & Immunology (Internal Medicine) providers in Missouri (79%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Allergists (Internal Medicine) in Missouri work in independent practices or large health systems?Among 20 Allergists (Internal Medicine) in Missouri enrolled in Medicare, 10% bill through a solo or small practice with fewer than 10 clinicians, 25% through a mid-size group of 10 to 99, and 65% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Allergists (Internal Medicine) in Missouri work at?According to CMS facility affiliation records, the Missouri hospitals where the most Allergists (Internal Medicine) hold privileges are Barnes Jewish Hospital in Saint Louis; Barnes-Jewish West County Hospital in Creve Coeur; Mercy Hospital St Louis in Saint Louis.
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