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

Dr. Christopher Bray Shaffer, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1528094760

Dr. Christopher Bray Shaffer, MD practises Anesthesiology in Mill Valley, California. Graduated from University of Missouri, Kansas City, School of Medicine in 2006, 20 years ago. Practices with Anesthesia Care Associates Medical Group, Inc, a 110-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
20
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
CA
In the registry since
2006
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 →

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Mill Valley, CA

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 115976 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1528094760
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 22, 2006
Last updated in NPPESNovember 4, 2022
Certification dateNovember 4, 2022

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Anesthesia Care Associates Medical Group, Inc — 110 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 patients194
Services billed 268 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Anesthesia Care Associates Medical Group, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 110 clinicians in the practice; 12 are shown here.

Other providers in Mill Valley