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

Dr. Robert A. Marciniak, MD

Individual provider Medical Oncology Physician · NPI 1700889201

Dr. Robert A. Marciniak, MD is a Medical Oncology Physician in San Antonio, Texas. Licensed in Texas. Registered with an NPI since 2005.

Licensed in
TX
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

7979 Wurzbach Rd
San Antonio, TX 78229-4427
Phone: (210) 450-1000
Fax: (210) 450-1150
Show map & directions

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

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence L3005 (TX)

Record details

NPI number1700889201
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 27, 2005
Last updated in NPPESAugust 18, 2010

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