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

Dr. William A. Neff, MD

Individual provider Anesthesiology Physician · NPI 1821086513

Dr. William A. Neff, MD is an Anesthesiology Physician in Fort Collins, Colorado. Licensed in Colorado and Texas. Registered with an NPI since 2005.

Licensed in
CO, TX
In the registry since
2005
Specialties on file
2
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

1236 E Elizabeth St Ste 1
Fort Collins, CO 80524-4000
Phone: (970) 224-2985
Fax: (970) 472-9381
Show map & directions

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

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence DR.0029957 (CO)
Anesthesiology Physician Taxonomy 207L00000X · Licence H1994 (TX)

Record details

NPI number1821086513
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 7, 2005
Last updated in NPPESJune 7, 2013

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