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

Michael John Costello, MD

Individual provider Emergency Medicine Physician · NPI 1477544781

Michael John Costello, MD is an Emergency Medicine in Pleasanton, California. Graduated from Rush Medical College of Rush University in 1992, 34 years ago. Practices with Pleasanton Emergency Medical Group, a 38-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
34
Trained at
Rush Medical College of Rush University
Licensed in
CA
In the registry since
2005
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

5555 W Las Positas Blvd
Pleasanton, CA 94588-4000
Phone: (209) 342-2300
Fax: (209) 524-4240
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G81580 (CA)

Record details

NPI number1477544781
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 4, 2005
Last updated in NPPESJuly 13, 2026
Mailing address4301 North Star Way, Modesto, CA 95356

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 1992 (34 years in practice)
Group practice Pleasanton Emergency Medical Group — 38 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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