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DR. MARY LOU JAZWINSKI DO
NPI 1821169137
Psychiatry & Neurology - Child & Adolescent Psychiatry in Chester, PA

Active since November 10, 2006PECOS Enrolled
1 MEDICAL CENTER BLVD, CHESTER, PA 19013(610) 874-5257(610) 874-7241 Get Directions Write a Review

NPPES record last updated: May 11, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Mary Lou Jazwinski Do NPPES

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

DR. MARY LOU JAZWINSKI DO (NPI 1821169137) is an individual child & adolescent psychiatry provider in Chester, Pennsylvania, licensed in Pennsylvania (OS004739L) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821169137
Entity TypeIndividualFemale
Primary Taxonomy2084P0804X
Provider Legal NameDR. MARY LOU JAZWINSKICredential: DO
Location Address1 MEDICAL CENTER BLVDChester, PA 19013-3902
Mailing Address1 Medical Center BlvdChester, PA 19013-3902 · (610) 874-5257
Phone(610) 874-5257
Fax(610) 874-7241
Sole ProprietorNo
Enumeration DateNovember 10, 2006
Last NPPES UpdateMay 11, 2016
✔ NPI 1821169137 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in PA · OS004739L
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
1 MEDICAL CENTER BLVD, Chester, PA 19013
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Other Identifiers 3

Medicaid009069800PA
Medicare ID-Type Unspecified071053PA
Medicare UPINE00703PA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mary Lou Jazwinski Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Jazwinski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Prospect Health Access Network, Inc.
Same address
Diagnostic Radiology
1 MEDICAL CENTER BLVD
Chester, PA 19013
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 654 clinicians in this Medicare group
NPI 1154776797 (302) 477-9660

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

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.

DR. HELEN MCCARTHY DO
Pediatrics
1 MEDICAL CENTER BLVD, POB1, SUITE402
CHESTER, PA 19013
Delaware County (610) 447-6680
DR. ERIC JOHN URNOSKI PHARMD
Pharmacist
1 MEDICAL CENTER BLVD
CHESTER, PA 19013
Delaware County (610) 447-2860
DR. LEONARD F HIRSH MD
Neurological Surgery
1 MEDICAL CENTER BLVD, POB II SUITE 428
CHESTER, PA 19013
Delaware County (610) 874-4044
CROZER ADULT DAY CENTERS - AS
Respite Care
1 MEDICAL CENTER BLVD, SILBERMAN CENTER
UPLAND, PA 19013
Delaware County (610) 447-2935
HEALTH ACCESS NETWORK
Obstetrics & Gynecology
1 MEDICAL CENTER BLVD, ACP #334
CHESTER, PA 19013
Delaware County (610) 872-7660
PROSPECT HEALTH ACCESS NETWORK, INC.
Psychiatry & Neurology (Neurology)
1 MEDICAL CENTER BLVD, ACP STE 533
CHESTER, PA 19013
Delaware County (610) 874-1184
PROSPECT HEALTH ACCESS NETWORK, INC.
Transplant Surgery
1 MEDICAL CENTER BLVD, POB II SUITE 220
CHESTER, PA 19013
Delaware County (610) 619-8420
HANNAH TEPLITZKY DO
Family Medicine
1 MEDICAL CENTER BLVD
CHESTER, PA 19013
Delaware County (610) 447-2000

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 Mary Lou Jazwinski's NPI number?

The NPI number for Mary Lou Jazwinski is 1821169137. It was assigned to this individual provider in the NPPES registry on November 10, 2006.

Where is Mary Lou Jazwinski located?

Mary Lou Jazwinski practices at 1 Medical Center Blvd, Chester, PA 19013. The listed phone number is (610) 874-5257.

What is Mary Lou Jazwinski's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Mary Lou Jazwinski enrolled in Medicare?

Yes. Mary Lou Jazwinski is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Lou Jazwinski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Lou Jazwinski reassigns Medicare benefits to Prospect Health Access Network, Inc. (Chester, PA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Lou Jazwinski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Lou Jazwinski was last updated on May 11, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.