Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Joseph L Mastro, MD

Individual provider Emergency Medicine Physician · NPI 1346212461

Dr. Joseph L Mastro, MD is an Emergency Medicine in Rochelle, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1994, 32 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
32
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

900 N 2nd St
Rochelle, IL 61068-1764
Phone: (815) 562-2181
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 885 Roosevelt Rd Ste 100, Glen Ellyn, IL 60137-6141 — (630) 938-6000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036093835 (IL)

Record details

NPI number1346212461
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 2, 2006
Last updated in NPPESDecember 9, 2025
Certification dateDecember 9, 2025
Mailing address654 S Hillside Ave, Elmhurst, IL 60126-4247

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1994 (32 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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