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

Dr. William Arthur Seiffert, MD

Individual provider Internal Medicine Physician · NPI 1669563284

Dr. William Arthur Seiffert, MD is an Internal Medicine Physician in Las Cruces, New Mexico. Licensed in New Mexico. Registered with an NPI since 2006.

Licensed in
NM
In the registry since
2006
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

4311 E Lohman Ave 4th Fl
Las Cruces, NM 88011-8255
Phone: (575) 556-6625
Fax: (575) 556-7495
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 MD2009-0068 (NM)

Record details

NPI number1669563284
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 27, 2006
Last updated in NPPESMay 11, 2017

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