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

Dr. Christopher James Ryerson, MD

Individual provider Pulmonary Disease Physician · NPI 1538495635

Dr. Christopher James Ryerson, MD is a Pulmonary Disease Physician in San Francisco, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009
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

505 Parnassus Ave # M1087
San Francisco, CA 94143-2204
Phone: (514) 283-6357
Fax: (415) 476-5712
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence A109442 (CA)

Record details

NPI number1538495635
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 23, 2009
Last updated in NPPESOctober 23, 2009

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