Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Robert Marquiss, MSSA

Individual provider Clinical Social Worker · NPI 1508407347

John Robert Marquiss, MSSA is a Clinical Social Worker in Casper, Wyoming. Licensed in Wyoming. Registered with an NPI since 2019.

Licensed in
WY
In the registry since
2019
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Practice location Address checks out

701 Antler Dr Ste 206
Casper, WY 82601-1749
Phone: (307) 439-5588
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LCSW-1596 (WY)

Record details

NPI number1508407347
Entity typeIndividual (Type 1)
GenderMale
Credentials MSSA
Sole proprietorNo
NPI enumeratedOctober 2, 2019
Last updated in NPPESJanuary 28, 2025
Certification dateJanuary 28, 2025

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients13
Services billed 55 a service is one billed item, such as a visit, a test or a procedure
Average patient age52

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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