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

Dr. Andres A Nieto, MD

Individual provider Internal Medicine Physician · NPI 1740342492

Dr. Andres A Nieto, MD is an Internal Medicine Physician in San Francisco, California. Practices as a sole proprietor. Licensed in Connecticut, Delaware, Florida and Indiana and 10 more.

Licensed in
CT, DE, FL, IN, MA, MD
In the registry since
2006
Specialties on file
14
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

1 California St Ste 2300
San Francisco, CA 94111-5424
Phone: (800) 997-6196
Fax: (415) 504-1367
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 0101242364 (VA)
Internal Medicine Physician Taxonomy 207R00000X · Licence ME130371 (FL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 269158 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence C1-0011949 (DE)
Internal Medicine Physician Taxonomy 207R00000X · Licence 25MA10054800 (NJ)
Internal Medicine Physician Taxonomy 207R00000X · Licence D82114 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD15546 (RI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 01077411A (IN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 285948 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD459148 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 4301111101 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 55884 (CT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 042.0013646 (VT)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD21235 (ME)

Record details

NPI number1740342492
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 15, 2006
Last updated in NPPESDecember 20, 2023
Certification dateDecember 20, 2023

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