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

Robert J Elsen, MD

Individual provider Gastroenterology Physician · NPI 1639212624

Robert J Elsen, MD is a Gastroenterology in San Francisco, California. Qualified in 1986, 40 years ago. Practices with Daniel R Conlin M D and Robert J Elsen M D a Medical Corporation, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
40
Licensed in
CA
In the registry since
2007
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

45 Castro St Ste 437
San Francisco, CA 94114-1029
Phone: (415) 469-0643
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G71096 (CA)

Record details

NPI number1639212624
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 15, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Daniel R Conlin M D And Robert J Elsen M D A Medical Corporation — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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