NPPES file of Aug 9, 2026

Mary Lou Olszewski, CRNP

Family Nurse Practitioner · Erie, PA

Mary Lou Olszewski, CRNP is a family nurse practitioner with a practice address in Erie, Pennsylvania, and NPI 1962904896, issued on Mar 7, 2018. Check the license (Pennsylvania SP019166, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962904896
Name
Mary Lou Olszewski
Credential
CRNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
SP019166 PA
Self-reported in NPPES; status is on the state search
Practice location
311 W 24TH St Ste 101, Erie, PA 16502
Phone
(814) 452-4214
Enumerated
Mar 7, 2018
Record last updated
Oct 5, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(814) 459-7823
Medicare enrollment
Enrolled (PECOS I20180927001201); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest family nurse practitioner records → All 7,209 in Pennsylvania → Look up another NPI →

Also registered at 311 W 24TH St Ste 101

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohammed Al Areef, MDUrology Physician1285156968
  2. Casey Bakayza, PAPhysician Assistant1588504484
  3. Scott Caldwell, CRNPPrimary Care Nurse Practitioner1114435088
  4. Ashlee Dirado, PHYSICIAN ASSISTANTMedical Physician Assistant1174939730
  5. Bethany Divell, CRNPFamily Nurse Practitioner1518647239
  6. Nicole Ehrman, PA-CMedical Physician Assistant1093183964

Verify Mary Lou Olszewski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license SP019166    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

1% fewer Medicare Part D claims than the average family nurse practitioner in 2024

1,287 Medicare Part D claims for 423 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.

  1. Mary Lou Olszewski1,287
  2. Specialty average1,305

Most prescribed

  1. Myrbetriq301 claims
  2. Estradiol250 claims
  3. Gemtesa143 claims
  4. Nitrofurantoin Mono-Macro106 claims
  5. Clobetasol Propionate66 claims
  6. Sulfamethoxazole-Trimethoprim57 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $576.81

17 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Lou Olszewski$576.81
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. St Vincent Medical Education And Research Institute IncErie, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Lou Olszewski among 7,209 family nurse practitioner records in Pennsylvania

Mary Lou Olszewski, CRNP is one of 7,209 family nurse practitioner records with a practice address in Pennsylvania. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 48% of them.

  • NPI issued2018 · 48% of these records are older, 46% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2018 · median 2018 among the 4,232 with a school on file
  • Record last updated2020 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

126 family nurse practitioner records list a practice address in Erie

They are 126 of the 5,083 NPPES records with a practice address in Erie, and 7,209 family nurse practitioner records in Pennsylvania.

All 7,209 in Pennsylvania → Every provider in Erie → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Kristi Althof, CRNPErie, PA 165021174951131
  2. Diane BoydErie, PA 165021427699495
  3. Mary Breckur, CRNPErie, PA 165021922400191
  4. Karen Kelley, CRNPErie, PA 165021477949527
  5. Jennifer Kuhn, CRNPErie, PA 165021982110912
  6. Stephanie Matlock, CRNPErie, PA 165021184648875
  7. Amber Mecca, CRNPErie, PA 165021346484326
  8. Alyssa Meighan, CRNPErie, PA 165021134597305

Common questions

What is Mary Lou Olszewski, CRNP's NPI number?

Mary Lou Olszewski, CRNP's National Provider Identifier (NPI) is 1962904896, issued on Mar 7, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Mary Lou Olszewski, CRNP located?

The NPPES record lists a practice address at 311 W 24TH St Ste 101, Erie, PA, 16502. Phone: (814) 452-4214. Providers update this record themselves, so call before visiting.

How can I verify Mary Lou Olszewski, CRNP's license?

NPPES lists Pennsylvania license number SP019166, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Lou Olszewski, CRNP prescribe under Medicare Part D?

In 2024, Mary Lou Olszewski, CRNP had 1,287 Medicare Part D claims for 423 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.