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

Dr. William Gerard Hemmer, DVM

Individual provider Veterinarian · NPI 1831433242

Dr. William Gerard Hemmer, DVM is a Veterinarian in Arnold, Maryland. Licensed in Maryland. Registered with an NPI since 2012.

Licensed in
MD
In the registry since
2012
What do these letters mean?
DVM — Doctor of Veterinary Medicine
A veterinarian.

See every abbreviation used in this directory →

Practice location Address checks out

1414 Ritchie Hwy 1414 Ritchie Hwy
Arnold, MD 21012-2403
Phone: (410) 757-7645
Show map & directions

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

Specialties & licences

Veterinarian (primary) Taxonomy 174M00000X · Licence 4070 (MD)

Record details

NPI number1831433242
Entity typeIndividual (Type 1)
GenderMale
Credentials DVM
Sole proprietorNo
NPI enumeratedNovember 26, 2012
Last updated in NPPESNovember 26, 2012
Mailing address1414 Ritchie Hwy, Arnold Veterinary Hospital, Arnold, MD 21012-2403

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