LARISSA MICHELE OLSON PA
NPI 1558839043
Physician Assistant in Middlebury, VT

Active since November 02, 2018PECOS EnrolledAccepts Medicare Assignment
115 PORTER DR, MIDDLEBURY, VT 05753(802) 388-8842 Get Directions Write a Review

NPPES record last updated: December 18, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 18, 2024, May 23, 2019, Nov 2, 2018 (3 updates tracked since 2018).

About Larissa Michele Olson Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LARISSA MICHELE OLSON PA (NPI 1558839043) is an individual physician assistant in Middlebury, Vermont, licensed in Vermont (0550031467) and active in the NPI registry since November 2018. She is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1558839043
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameLARISSA MICHELE OLSONCredential: PA
Location Address115 PORTER DRMiddlebury, VT 05753-8629
Mailing Address420 Franklin StRumford, ME 04276-2104
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateNovember 2, 2018
Last NPPES UpdateDecember 18, 20243 updates tracked since enumeration
NPPES CertifiedDecember 18, 2024
NPI 1558839043 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses Licensed in VT · 0550031467 Licensed in ME · PA2421 Licensed in NH · 1947
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 023278 (NY)
115 PORTER DR, Middlebury, VT 05753

Secondary Practice Locations 2

Location 1118 Northport AveBelfast, ME 04915-6072 · Phone (585) 943-2282
Location 216 Hospital RdPlymouth, NH 03264-1199 · Phone (603) 536-1120

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Larissa Michele Olson Pa is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103159967
PECOS Enrollment IDI20200826000396, I20230217000989, I20231030001544
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
27 services19 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
24 services24 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
20 services20 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
15 services15 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Maine Medical Center

Acute Care Hospitals · Portland, ME
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200009
Location22 Bramhall StPortland, ME 04102 · Cumberland County
Emergency services Birthing friendly

Lincolnhealth

Critical Access Hospitals · Damariscotta, ME
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number201302
Location35 Miles StreetDamariscotta, ME 04543 · Lincoln County
Emergency services

Memorial Hospital, The

Critical Access Hospitals · North Conway, NH
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number301307
Location3073 White Mountain HighwayNorth Conway, NH 03860 · Carroll County
Emergency services

Porter Hospital, Inc

Critical Access Hospitals · Middlebury, VT
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number471307
Location115 Porter DriveMiddlebury, VT 05753 · Addison County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 05753 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.89 typical visit price
range $55.80 – $168.48
Typical copayment $21.47 (range $13.95 – $42.12)
Most-billed visit code 99203
Established Patient
$69.56 typical visit price
range $18.08 – $137.84
Typical copayment $17.39 (range $4.52 – $34.46)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
115 PORTER DR
MIDDLEBURY, VT 05753
Speech-Language Pathologist
115 PORTER DR
MIDDLEBURY, VT 05753
Physical Therapist
115 PORTER DR, PORTER HOSPITAL
MIDDLEBURY, VT 05753
Emergency Medicine
115 PORTER DR, PORTER HOSPITAL
MIDDLEBURY, VT 05753
Radiology (Diagnostic Radiology)
115 PORTER DR, RADIOLOGY DEPARTMENT
MIDDLEBURY, VT 05753
Physician Assistant
115 PORTER DR
MIDDLEBURY, VT 05753
Clinical Nurse Specialist (Emergency)
115 PORTER DR, PORTER HOSPITAL
MIDDLEBURY, VT 05753
Physician Assistant
115 PORTER DR
MIDDLEBURY, VT 05753

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Larissa Olson's NPI number?

The NPI number for Larissa Olson is 1558839043. It was assigned to this individual provider in the NPPES registry on November 2, 2018.

Where is Larissa Olson located?

Larissa Olson practices at 115 Porter Dr, Middlebury, VT 05753. The listed phone number is (802) 388-8842.

What is Larissa Olson's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Larissa Olson enrolled in Medicare?

Yes. Larissa Olson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Larissa Olson accept?

Health plans from WellSense Health Plan list Larissa Olson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Larissa Olson affiliated with any hospitals?

According to CMS data, Larissa Olson is affiliated with Maine Medical Center, Lincolnhealth, Memorial Hospital, The and Porter Hospital, Inc.

When was this NPI record last updated?

The NPPES record for Larissa Olson was last updated on December 18, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.