MARY LOU OLSZEWSKI CRNP
NPI 1962904896
Nurse Practitioner - Family in Erie, PA

Q: What is Mary Lou Olszewski's NPI number?

The NPI number for Mary Lou Olszewski is 1962904896. It was assigned to this individual provider in the NPPES registry on March 7, 2018.

Q: What is Mary Lou Olszewski's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Active since March 07, 2018PECOS EnrolledAccepts Medicare Assignment

311 W 24TH ST STE 101, ERIE, PA 16502(814) 452-4214(814) 459-7823 Get Directions Write a Review

NPPES record last updated: October 5, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 5, 2020, Apr 21, 2020, Mar 13, 2020 and 2 more (5 updates tracked since 2018).

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About Mary Lou Olszewski Crnp NPPES

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

MARY LOU OLSZEWSKI CRNP (NPI 1962904896) is an individual family provider in Erie, Pennsylvania, licensed in Pennsylvania (SP019166) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, is affiliated with Saint Vincent Hospital, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1962904896

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMARY LOU OLSZEWSKICredential: CRNP

Location Address311 W 24TH ST STE 101Erie, PA 16502-2668

Mailing Address311 W 24th St Ste 101Erie, PA 16502-2668 · (814) 452-4214 · Fax (814) 459-7823

Phone(814) 452-4214

Fax(814) 459-7823

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateMarch 7, 2018

Last NPPES UpdateOctober 5, 20205 updates tracked since enumeration

NPPES CertifiedOctober 5, 2020

✔ NPI 1962904896 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in PA · SP019166

311 W 24TH ST STE 101, Erie, PA 16502

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Lou Olszewski Crnp 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 ID1052662244

PECOS Enrollment IDI20180927001201

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.

Medicare Billing Reassignment

Medicare enrollment records show Mary Lou Olszewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

St Vincent Medical Education And Research Institute Inc

0.2 mi

Internal Medicine

2314 SASSAFRAS ST, 2ND FLOOR - ADMIN OFFICE
Erie, PA 16502

Reassigned Medicare billing, Pennsylvania enrollment
483 clinicians in this Medicare group

NPI 1902881477 (814) 452-5043

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

75 services67 patients

Insertion of temporary bladder tube 51701

This procedure involves placing a small tube into your lower abdomen to help drain urine from your bladder. It's a temporary measure, often used when normal urination is not possible. The tube remains in place until you can urinate on your own again.

32 services32 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

27 services24 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

18 services17 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

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

Saint Vincent Hospital

Acute Care Hospitals · Erie, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390009

Location232 West 25th StreetErie, PA 16544 · Erie County

Emergency services Birthing friendly

Meadville Medical Center

Acute Care Hospitals · Meadville, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390113

Location751 Liberty StreetMeadville, PA 16335 · Crawford County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 16502 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

$84.88 typical visit price

range $54.64 – $166.87

Typical copayment $21.22 (range $13.66 – $41.71)

Most-billed visit code 99203

Established Patient

$96.82 typical visit price

range $17.33 – $135.84

Typical copayment $24.20 (range $4.33 – $33.96)

Most-billed visit code 99214

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 11

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

NICOLE MARIE EHRMAN PA-C

Physician Assistant (Medical)