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

Mark Allen Thomas, NP

Individual provider Critical Care Medicine Registered Nurse · NPI 1558425868

Mark Allen Thomas, NP is a Critical Care Medicine Registered Nurse in Portsmouth, Virginia. Practices as a sole proprietor. Licensed in Michigan.

Licensed in
MI
In the registry since
2006
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

620 John Paul Jones Cir
Portsmouth, VA 23708-2111
Phone: (757) 953-3420
Show map & directions

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

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 4704220074 (MI)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 4704220074 (MI)

Record details

NPI number1558425868
Entity typeIndividual (Type 1)
GenderMale
Credentials NP
Sole proprietorYes
NPI enumeratedDecember 21, 2006
Last updated in NPPESSeptember 10, 2012

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