Doctor profile · Federal record

Dr. Mary Ann Arndt, M.D.

Nephrology Physician (CMS: Nephrology) · Nephrology Physician · Spokane, WA

  • NPI 1750458329
  • Accepts Medicare
  • 24 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
105 W 8Th Ave, Suite 7060
Spokane, WA 992042302
(509) 340-0930
fax (509) 747-2054
Mailing address
Po Box 421
Liberty Lake, WA 990190421

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
September 13, 2016
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State licenses (2)
Washington #MD30286879 · Oregon #MD157887

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1750458329. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
532
Distinct HCPCS
6
Medicare allowed
$44,515
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 354 82 $78
90935 Hemodialysis procedure with physician evaluation 87 36 $70
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 37 35 $171
90945 Dialysis procedure including 1 evaluation 22 12 $84
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 18 14 $49
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 14 14 $128

In context: peer comparison

Among 9 peers in Spokane Nephrology Physician, average services per provider: 105. This provider delivers 5.1× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Ann Arndt's medical specialty?
Dr. Mary Ann Arndt practices Nephrology Physician in Spokane, WA.
Where does Dr. Mary Ann Arndt practice?
Dr. Mary Ann Arndt practices at 105 W 8Th Ave, Spokane, WA 992042302. Office phone: 5093400930.
What is Dr. Mary Ann Arndt's NPI?
Dr. Mary Ann Arndt's National Provider Identifier (NPI) is 1750458329, issued by NPPES.
Does Dr. Mary Ann Arndt accept Medicare assignment?
Yes. Dr. Mary Ann Arndt accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Ann Arndt commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hemodialysis procedure with physician evaluation (HCPCS 90935); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.