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

David R Riker, MD

Individual provider Pulmonary Disease Physician · NPI 1164405528

David R Riker, MD is a Pulmonary Disease in San Diego, California. Graduated from Michigan State University College of Human Medicine in 1999, 27 years ago. Practices with On Call Specialists Medical Group of San Diego Inc, a 144-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Trained at
Michigan State University College of Human Medicine
Licensed in
CA
In the registry since
2005
Specialties on file
3
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

200 W Arbor Dr
San Diego, CA 92103-9001
Phone: (617) 939-6943
Fax: (858) 822-5338
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence C53916 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence C53916 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence C53916 (CA)

Record details

NPI number1164405528
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 21, 2005
Last updated in NPPESMay 21, 2026
Certification dateMay 21, 2026

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 1999 (27 years in practice)
Group practice On Call Specialists Medical Group Of San Diego Inc — 144 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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