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

Steven Robert Callahan, MD

Individual provider Emergency Medicine Physician · NPI 1164485991

Steven Robert Callahan, MD is a Family Practice in Newport Beach, California. Qualified in 1978, 48 years ago. Practices with Emergency Physicians of Orange County, a 62-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
48
Licensed in
CA
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

1 Hoag Dr ECU Dept
Newport Beach, CA 92663-4162
Phone: (949) 764-5689
Fax: (405) 751-3183
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G41150 (CA)

Record details

NPI number1164485991
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 11, 2006
Last updated in NPPESSeptember 19, 2012
Mailing addressPo Box 720300, Oklahoma City, OK 73172-0300

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Group practice Emergency Physicians Of Orange County — 62 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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