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

Dr. William Allen Gahl, MD

Individual provider Clinical Genetics (M.D.) Physician · NPI 1992948582

Dr. William Allen Gahl, MD is a Clinical Genetics (M.D.) Physician in Bethesda, Maryland. Licensed in Wisconsin. Registered with an NPI since 2009.

Licensed in
WI
In the registry since
2009
Specialties on file
3
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

10 Center Drive Msc 1851 Bldg 10 Rm 10C-103 Nhgri Nih
Bethesda, MD 20892-0001
Phone: (301) 402-2739
Fax: (301) 402-2740
Show map & directions

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

Specialties & licences

Clinical Biochemical Genetics Physician (primary) Taxonomy 207SG0202X · Licence 20993-020 (WI)
Clinical Genetics (M.D.) Physician Taxonomy 207SG0201X · Licence 20993-020 (WI)
Pediatrics Physician Taxonomy 208000000X · Licence 20993-020 (WI)

Record details

NPI number1992948582
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2009
Last updated in NPPESApril 12, 2009

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