Doctor profile · Federal record

Dr. Karina Stone, MD

Neurology Physician (CMS: Psychiatry) · Portland, OR

  • NPI 1922149095
  • Accepts Medicare
  • MIPS 83.2 / 100 · 2023
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1225 Ne 2Nd Ave., Unity Center
Portland, OR 97232
(503) 944-8010
Mailing address
3181 Sw Sam Jackson Park Road.
Portland, OR 972393011

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
December 30, 2016
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State license (1)
Massachusetts #225874

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1922149095. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
121
Distinct HCPCS
3
Medicare allowed
$9,085
HCPCS Description Services Patients Avg allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 76 34 $50
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 28 13 $81
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 17 16 $177

In context: peer comparison

Among 38 peers in this city , average services per provider: 266. This provider delivers 0.5× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Karina Stone's medical specialty?
Dr. Karina Stone practices Neurology Physician in Portland, OR.
Where does Dr. Karina Stone practice?
Dr. Karina Stone practices at 1225 Ne 2Nd Ave., Portland, OR 97232. Office phone: 5039448010.
What is Dr. Karina Stone's NPI?
Dr. Karina Stone's National Provider Identifier (NPI) is 1922149095, issued by NPPES.
Does Dr. Karina Stone accept Medicare assignment?
Yes. Dr. Karina Stone accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karina Stone commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.