Cnos PC

Cnos PC is a healthcare organization registered as Orthopaedic Surgery Physician in Dakota Dunes, SD, holding Type 2 (organization) NPI 1881604320 since 2006. The authorized official on file is Ryan Meis, Owner/Board of Director.

✓ Active NPI ✓ Valid NPI checksum

NPI	1881604320
Entity type	Organization (Type 2)
Legal business name	Cnos PC
Practice address	575 N SIOUX POINT RD, Dakota Dunes, SD, 57049
Phone	6052172667
Fax	6052172900
Enumeration date	2006-08-08
Last updated in NPPES	2026-01-14

Authorized official

Name	Ryan Meis
Title	Owner/Board of Director
Phone	6052172667

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
2084N0400X	Neurology Physician	Secondary	0369	SD
207T00000X	Neurological Surgery Physician	Secondary	0369	SD
213E00000X	Podiatrist	Secondary	0369	SD
332B00000X	Durable Medical Equipment & Medical Supplies	Secondary	0369	SD
207RR0500X	Rheumatology Physician	Secondary	0369	SD
208200000X	Plastic Surgery Physician	Secondary	0369	SD
207X00000X	Orthopaedic Surgery Physician	Primary	0369	SD

Other identifiers

Identifier	Type	State	Issuer
0181842	Medicaid	IA	—

Copy-ready billing details

Provider: Cnos PC
NPI: 1881604320
Taxonomy: 207X00000X (Orthopaedic Surgery Physician)
Address: 575 N SIOUX POINT RD, Dakota Dunes, SD, 57049

Providers at this address

NPI	Name	Type	Specialty	Location
1720905987	Juan Salinas Cobian	Individual	Occupational Therapist	Dakota Dunes, SD
1992708853	James Case	Individual	Neurology Physician	Dakota Dunes, SD
1457354383	Quentin Durward	Individual	Neurological Surgery Physician	Dakota Dunes, SD
1013910363	Thorir Ragnarsson	Individual	Neurological Surgery Physician	Dakota Dunes, SD
1366445694	Gordon Porter	Individual	Orthopaedic Surgery Physician	Dakota Dunes, SD
1447253778	Steven Stokesbary	Individual	Orthopaedic Surgery Physician	Dakota Dunes, SD
1619970944	Mark Wheeler	Individual	Orthopaedic Surgery Physician	Dakota Dunes, SD
1073516308	Paula Formosa	Individual	Plastic Surgery Physician	Dakota Dunes, SD

Verify this record

Cross-check NPI 1881604320 against the authoritative CMS record: view Cnos PC on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Where is Cnos PC located?

The practice location on file with NPPES is in Dakota Dunes, SD.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-01-14. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-09. Provider record last updated 2026-01-14.