Colin Iosso, MD
NPI 1538137484 · Neurology Physician · Tacoma, WA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Colin Iosso, MD is a Neurology Physician provider in Tacoma, WA (NPI 1538137484).
Provider details
- NPI number
- 1538137484
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- M7291 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
305 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 79 | $126 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 72 | $164 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 41 | $54 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 27 | $77 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 20 | $218 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 94 | 36 |
| Donepezil Hcl | 85 | 27 |
| Levetiracetam | 84 | 31 |
| Zonisamide | 46 | 13 |
| Topiramate | 45 | 15 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 35 | 14 |
| Rivastigmine Tartratebrand: Rivastigmine | 32 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$134 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 710 Birchwood Ave Ste 201Bellingham, WA 98225-1720Phone: (360) 788-6870Fax: (360) 788-6872
Registry dates
- Enumerated
- 2006-03-08
- Last updated
- 2025-02-28
- Certified
- 2025-02-28
Frequently asked questions
- What is Colin Iosso's NPI number?
- Colin Iosso's National Provider Identifier (NPI) is 1538137484, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colin Iosso's specialty?
- Colin Iosso is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Colin Iosso located?
- Colin Iosso's practice location on file with NPPES is 1608 S J St Fl 5, Tacoma, WA 98405-4930.
- What is Colin Iosso's phone number?
- The practice phone number listed in the NPPES registry for Colin Iosso is (253) 274-7505.
- Does Colin Iosso accept Medicare?
- Colin Iosso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Colin Iosso's NPI active?
- Yes — Colin Iosso's NPI (1538137484) is active in the NPPES registry as of the last update on 2025-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.