Doctor profile · Federal record

Dr. Colin Iosso, MD

Neurology Physician (CMS: Neurology) · Neurology Physician · Neurology Physician · Tacoma, WA

  • NPI 1538137484
  • Accepts Medicare
  • 38 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1608 S J St Fl 5
Tacoma, WA 984054930
(253) 274-7505
Additional location
710 Birchwood Ave Ste 201
Bellingham, WA 982251720
(360) 788-6870
fax (360) 788-6872

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
February 28, 2025
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
2084N0400X — NUCC code
State licenses (3)
Washington #MD60201685 · Texas #M7291 · Tennessee #39851
Medicaid
WA #2011519

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538137484. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
266
Distinct HCPCS
9
Medicare allowed
$35,963
HCPCS Description Services Patients Avg allowed
99204 New patient office or other outpatient visit, 45-59 minutes 70 70 $165
99214 Established patient office or other outpatient visit, 30-39 minutes 56 48 $124
99205 New patient office or other outpatient visit, 60-74 minutes 29 29 $211
95816 Measurement of brain wave activity (eeg), awake and drowsy 25 25 $55
99213 Established patient office or other outpatient visit, 20-29 minutes 21 21 $90
99215 Established patient office or other outpatient visit, 40-54 minutes 18 18 $178
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 18 18 $124
95886 Needle measurement of electrical activity in arm or leg muscles, complete study 15 12 $99
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 14 11 $78

In context: peer comparison

Among 9 peers in this city , average services per provider: 2,027. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$134
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Eisai Inc. 1 $118.96
Alexion Pharmaceuticals, Inc. 1 $15.00

By nature of payment

Food and Beverage
$119
Education
$15

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
535
Patients
104
Total drug cost
$30,098
Drug Type Claims Patients Total cost
Levetiracetam Generic 83 27 $7,004
Donepezil Hcl Generic 66 24 $1,016
Zonisamide Generic 53 14 $2,246
Topiramate Generic 43 13 $1,018
Carbidopa-Levodopa (Carbidopa/Levodopa) Brand 31 14 $2,159
Gabapentin Generic 31 12 $582
Rivastigmine (Rivastigmine Tartrate) Brand 31 0 $3,281
Buspirone Hcl Generic 30 0 $435
Clobazam Generic 26 0 $1,453
Lacosamide Generic 26 0 $2,290

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Colin Iosso's medical specialty?
Dr. Colin Iosso practices Neurology Physician in Tacoma, WA.
Where does Dr. Colin Iosso practice?
Dr. Colin Iosso practices at 1608 S J St Fl 5, Tacoma, WA 984054930. Office phone: 2532747505.
What is Dr. Colin Iosso's NPI?
Dr. Colin Iosso's National Provider Identifier (NPI) is 1538137484, issued by NPPES.
Does Dr. Colin Iosso accept Medicare assignment?
Yes. Dr. Colin Iosso accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Colin Iosso commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.