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

Lionel G Tan

Individual provider Internal Medicine Physician · NPI 1548467871

Lionel G Tan is an Internal Medicine in Sacramento, California. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2007, 19 years ago. Practices with Regents of the Univ of Ca, a 1,578-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
19
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
CA
In the registry since
2007
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Practice location Address checks out

4150 V St Ste 3400
Sacramento, CA 95817-1460
Phone: (916) 734-7587
Fax: (916) 734-7924
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A105627 (CA)

Record details

NPI number1548467871
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 29, 2007
Last updated in NPPESFebruary 9, 2017

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2007 (19 years in practice)
Group practice Regents Of The Univ Of Ca — 1578 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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