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

Individual provider Emergency Medicine Physician · NPI 1891717427

Christopher Joseph Markus, DO is an Emergency Medicine in Roseville, California. Qualified in 1993, 33 years ago. Practices with Vituity-California Observation Services PC, a 84-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
33
Licensed in
CA
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1 Medical Plaza Dr
Roseville, CA 95661-3037
Phone: (916) 781-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 20A7300 (CA)

Record details

NPI number1891717427
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 24, 2006
Last updated in NPPESOctober 26, 2007
Mailing address2100 Powell St, Ste 900, Emeryville, CA 94608-1826

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Vituity-California Observation Services Pc — 84 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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