Larissa Messenger, PA
NPI 1538402763 · Medical Physician Assistant · Duluth, MN
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Larissa Messenger, PA is a Medical Physician Assistant provider in Duluth, MN (NPI 1538402763).
Provider details
- NPI number
- 1538402763
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 11387 (MN)
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
13 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
209 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 121 | $95 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 60 | $92 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 28 | $63 |
Typical Medicare-allowed amounts for these services range $63–$95 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 104 | 59 |
| Furosemide | 38 | 22 |
| Atorvastatin Calcium | 31 | — |
| Metoprolol Succinate | 28 | 16 |
| Torsemide | 17 | 12 |
| Amiodarone Hcl | 16 | — |
| Empagliflozinbrand: Jardiance | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-06
- Last updated
- 2014-10-30
Frequently asked questions
- What is Larissa Messenger's NPI number?
- Larissa Messenger's National Provider Identifier (NPI) is 1538402763, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larissa Messenger's specialty?
- Larissa Messenger is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Larissa Messenger located?
- Larissa Messenger's practice location on file with NPPES is 400 E 3rd St, Duluth, MN 55805-1951.
- What is Larissa Messenger's phone number?
- The practice phone number listed in the NPPES registry for Larissa Messenger is (218) 786-8364.
- Does Larissa Messenger accept Medicare?
- Larissa Messenger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Larissa Messenger's NPI active?
- Yes — Larissa Messenger's NPI (1538402763) is active in the NPPES registry as of the last update on 2014-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.