Dorian Larsen, F.N.P.
NPI 1356489041 · Family Nurse Practitioner · Lewiston, ID
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dorian Larsen, F.N.P. is a Family Nurse Practitioner provider in Lewiston, ID (NPI 1356489041).
Provider details
- NPI number
- 1356489041
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- F.N.P.
- Sex
- Male
- Sole proprietor
- No
- License
- NP-508A (ID)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,035 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 396 | $60 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 172 | $99 |
| Drug Test(s), Definitive, Utilizing (1) Drug Identification Methods Able to Identify Individual Drugs and Distinguish Between Structural Isomers (but Not Necessarily Stereoisomers), Including, But Not Limited to Gc/Ms (any Type, Single Or Tandem) and Lc/MsG0480 | 155 | $110 |
| Drug Test(s), Definitive, Utilizing (1) Drug Identification Methods Able to Identify Individual Drugs and Distinguish Between Structural Isomers (but Not Necessarily Stereoisomers), Including, But Not Limited to Gc/Ms (any Type, Single Or Tandem) and Lc/MsG0481 | 142 | $149 |
| Measurement of Alcohol Level in Breath Specimen82075 | 94 | $29 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 281 | 48 |
| Buprenorphine Hcl | 79 | 11 |
| Buprenorphine Hcl/Naloxone Hclbrand: Zubsolv | 30 | — |
| Clonazepam | 19 | — |
| Acamprosate Calcium | 18 | — |
| Hydroxyzine Hcl | 15 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-02
- Last updated
- 2025-03-11
- Certified
- 2025-03-11
Frequently asked questions
- What is Dorian Larsen's NPI number?
- Dorian Larsen's National Provider Identifier (NPI) is 1356489041, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dorian Larsen's specialty?
- Dorian Larsen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Dorian Larsen located?
- Dorian Larsen's practice location on file with NPPES is 1630 23rd Ave Ste 501, Lewiston, ID 83501-6345.
- What is Dorian Larsen's phone number?
- The practice phone number listed in the NPPES registry for Dorian Larsen is (877) 522-1275.
- Does Dorian Larsen accept Medicare?
- Dorian Larsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dorian Larsen's NPI active?
- Yes — Dorian Larsen's NPI (1356489041) is active in the NPPES registry as of the last update on 2025-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.