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

Peter Callander, MD

Individual provider Orthopaedic Surgery Physician · NPI 1144316688

Peter Callander, MD practises Orthopedic Surgery in San Francisco, California. Graduated from Saint Louis University School of Medicine in 1995, 31 years ago. Practices with California Pacific Orthopaedics and Sports Medicine a Medical Corporat, a 31-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
31
Trained at
Saint Louis University School of Medicine
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

3838 California St Ste 715
San Francisco, CA 94118-1522 Not confirmed with CMS for 16 years — call before visiting
Phone: (415) 592-2014
Fax: (415) 752-2560
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence A61996 (CA)

Record details

NPI number1144316688
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 4, 2006
Last updated in NPPESNovember 10, 2009

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice California Pacific Orthopaedics And Sports Medicine A Medical Corporat — 31 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Hip replacement 143 times · 99th percentile
Knee replacement 136 times · 97th percentile
Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients819
Services billed 10,879 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 California Pacific Orthopaedics and Sports Medicine a Medical Corporat

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 San Francisco