npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › California › Gastroenterology Physician

Robert Elsen, M.D

NPI 1639212624 · on the registry since 2007 · sole proprietor

Practice

Address
45 Castro St Ste 437
San Francisco, CA 94114
Phone
(415) 469-0643
Organisation at this address
Sfpmr
Psinc Inc
Psinc, Inc
Walgreen Co.
Mang Chen Md Pc
Inferred from a shared address, not stated in the registry.
Clinicians at this address
130

Registry record

Primary taxonomy
Gastroenterology Physician
207RG0100X
Licence states on file
CA
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2007-07-08

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California