Doctor profile · Federal record

Dr. Arnold Siefken, D.C.

Chiropractor (CMS: Chiropractic) · Jamestown, ND

  • NPI 1699861195
  • 45 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
701 1St Ave. S.
Jamestown, ND 58401
(701) 252-0569
fax (701) 252-0569

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
111N00000X — NUCC code
State license (1)
North Dakota #409
Medicaid
ND #13933

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1699861195. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,459
Distinct HCPCS
1
Medicare allowed
$57,237
HCPCS Description Services Patients Avg allowed
98941 Chiropractic manipulative treatment, 3-4 spinal regions 1,459 121 $39

In context: peer comparison

Among 2 peers in Jamestown Chiropractor, average services per provider: 535. This provider delivers 2.7× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Arnold Siefken's medical specialty?
Dr. Arnold Siefken practices Chiropractor in Jamestown, ND.
Where does Dr. Arnold Siefken practice?
Dr. Arnold Siefken practices at 701 1St Ave. S., Jamestown, ND 58401. Office phone: 7012520569.
What is Dr. Arnold Siefken's NPI?
Dr. Arnold Siefken's National Provider Identifier (NPI) is 1699861195, issued by NPPES.
Does Dr. Arnold Siefken accept Medicare assignment?
Dr. Arnold Siefken does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Arnold Siefken commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 3-4 spinal regions (HCPCS 98941). Source: CMS Medicare Physician & Other Practitioners file.