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

Dr. Roy Jerome Williams Jr., MD

Individual provider Internal Medicine Physician · NPI 1982604369

Dr. Roy Jerome Williams Jr., MD is an Internal Medicine Physician in Saint Louis, Missouri. Licensed in Missouri. Registered with an NPI since 2005.

Licensed in
MO
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

3409 Union Blvd
Saint Louis, MO 63115-1127
Phone: (314) 261-4834
Fax: (314) 383-3930
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 R9968 (MO)

Record details

NPI number1982604369
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 28, 2005
Last updated in NPPESOctober 24, 2012

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