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

Dr. William Henry Johnson, MD

Individual provider Nephrology Physician · NPI 1134118326

Dr. William Henry Johnson, MD is a Nephrology Physician in Frederick, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
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

140 Thomas Johnson Dr Ste 202
Frederick, MD 21702-4402
Phone: (301) 694-7788
Fax: (301) 694-3184
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence D0047556 (MD)

Record details

NPI number1134118326
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 19, 2005
Last updated in NPPESFebruary 25, 2008

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