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

Dr. John M Loeb, MD

Individual provider Rheumatology Physician · NPI 1932106390

Dr. John M Loeb, MD is a Rheumatology Physician in Walnut Creek, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
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

120 La Casa Via Ste 204
Walnut Creek, CA 94598-3007
Phone: (925) 210-1050
Fax: (921) 210-1082
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence G29097 (CA)

Record details

NPI number1932106390
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2005
Last updated in NPPESJuly 28, 2010
Mailing address120 La Casa Via, Ste 204, Walnut Creek, CA 94598-3007

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