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

Dr. Robert Ryan Field, MD

Individual provider Anesthesiology Physician · NPI 1700059615

Dr. Robert Ryan Field, MD is an Anesthesiology in Orange, California. Graduated from University of Kansas School of Med (KC/WICH/SAL) in 2008, 18 years ago. Practices with Regents of the University Of, a 233-clinician group and accepts Medicare assignment. Licensed in California and Missouri.

Years since qualifying
18
Trained at
University of Kansas School of Med (KC/WICH/SAL)
Licensed in
CA, MO
In the registry since
2008
Specialties on file
2
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

333 City Blvd W Ste 2150
Orange, CA 92868-2903
Phone: (714) 456-5501
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A121646 (CA)
Anesthesiology Physician Taxonomy 207L00000X · Licence 2008015973 (MO)

Record details

NPI number1700059615
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 11, 2008
Last updated in NPPESOctober 27, 2012
Mailing address333 City Blvd W, Suite 2150, Orange, CA 92868-2903

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated 2008 (18 years in practice)
Group practice Regents Of The University Of — 233 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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