Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Nathaniel Collins, MD

Individual provider Anesthesiology Physician · NPI 1194176404

Nathaniel Collins, MD practises Anesthesiology in Orange, California. Qualified in 2015, 11 years ago. Practices with Regents of the University Of, a 233-clinician group and accepts Medicare assignment. Licensed in California and Virginia.

Years since qualifying
11
Licensed in
CA, VA
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 456-2985
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 157480 (CA)
Anesthesiology Physician Taxonomy 207L00000X · Licence 0101267244 (VA)

Record details

NPI number1194176404
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 28, 2016
Last updated in NPPESJune 9, 2025
Certification dateJune 9, 2025

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Regents Of The University Of — 233 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients167
Services billed 180 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Uci Health-Orange Hospital · Orange, CA

Colleagues at Regents of the University Of

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 233 clinicians in the practice; 12 are shown here.

Other providers in Orange