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

Mr. Robert Ertner, MD

Individual provider Anesthesiology Physician · NPI 1104876283

Mr. Robert Ertner, MD practises Anesthesiology in Chico, California. Graduated from Texas Tech University Health Science Center School of Medicine in 2001, 25 years ago. Practices with Orthopedic Associates of Northern California a Medical Group, a 31-clinician group and accepts Medicare assignment. Licensed in California, Missouri and Texas.

Years since qualifying
25
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
CA, MO, TX
In the registry since
2006
Specialties on file
6
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

1531 Esplanade
Chico, CA 95926
Phone: (530) 332-7330
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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 A97004 (CA)
Anesthesiology Physician Taxonomy 207L00000X · Licence 2006005745 (MO)
Addiction Medicine (Anesthesiology) Physician Taxonomy 207LA0401X · Licence 2006005745 (MO)
Critical Care Medicine (Anesthesiology) Physician Taxonomy 207LC0200X · Licence 2006005745 (MO)
Pain Medicine (Anesthesiology) Physician Taxonomy 207LP2900X · Licence 2006005745 (MO)
Anesthesiology Physician Taxonomy 207L00000X · Licence L2876 (TX)

Record details

NPI number1104876283
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESMarch 15, 2017

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Orthopedic Associates Of Northern California A Medical Group — 31 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients262
Services billed 355 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $118 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Enloe Health Hospital · Chico, CA
  • Mercy Medical Center Redding Hospital · Redding, CA

Colleagues at Orthopedic Associates of Northern California a Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 31 clinicians in the practice; 12 are shown here.

Other providers in Chico