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Dr. BARRY ZEFFREN, MD
Allergist & Immunologist
Unclaimed ProfileThis profile was created using publicly available federal provider information. The provider has not claimed, verified or endorsed this profile.
Practice location
SAINT LOUIS, MO, 63130-3605
View on mapPhone: (773) 260-0964
Glen Carbon, IL, 62034 · (618) 288-6673
Pollen today in Kansas City, MO
A tracked city in Missouri — see all 56 tracked cities in the daily rankings.
Total Pollen Index: 3 / 100 (Low)
Dominant allergen today: Tree
- Tree pollen: 0 (Low)
- Grass pollen: 0 (Low)
- Weed pollen (ragweed): 0 (Low)
- Mold: 1.2 (Low)
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Patient reviews
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Provider information
NPI: 1205908639
Data source: CMS National Plan and Provider Enumeration System
Federal information last updated: 7/14/2026