Tiffany B. Dy, MD
Listed as an allergist, with 4 practice addresses in Saint Louis and Hazelwood, Missouri.
Practice locations 4
Washington University
1 Barnes Jew Hosp Plz
Saint Louis, MO 63110Washington University
1 Village Square Shop Ctr
Hazelwood, MO 63042Washington University
5201 Mid America Plz
Saint Louis, MO 63129Washington University
5225 Mid America Plz
Saint Louis, MO 63129
From the records
- Specialty
- Allergist
- Records
- Medicare records: allergy/immunology (October 2026).
- Medicare
- Accepts the Medicare-approved amount as payment in full (Medicare assignment), according to CMS’s file. This applies to Original Medicare; Medicare Advantage plans have their own networks. What assignment means
- Telehealth
- Medicare’s file shows recent telehealth visits. It doesn’t mean every visit can be by video.
- Medical school
- Graduated 2009; school not named (Medicare records)
- Registry record
- Last updated April 2025
- NPI
- 1528292174 (national provider registry)
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From CMS’s Doctors and Clinicians file (October 2026) and the national provider registry, NPPES (October 2026). Listings are free and in alphabetical order; we don’t rate or recommend doctors. How we list doctors