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MR. MARK LEJA APN
NPI 1669242483
Nurse Practitioner - Psychiatric/Mental Health in Elizabeth, NJ

Active since January 03, 2024PECOS EnrolledAccepts Medicare Assignment
654 E JERSEY ST, ELIZABETH, NJ 07206(908) 994-7552 Get Directions Write a Review

NPPES record last updated: March 6, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 6, 2024, Jan 3, 2024 (2 updates tracked since 2024).

About Mr. Mark Leja Apn NPPES

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

MR. MARK LEJA APN (NPI 1669242483) is an individual psychiatric/mental health provider in Elizabeth, New Jersey, licensed in New Jersey (26NJ14964400) and active in the NPI registry since January 2024. He is enrolled in Medicare PECOS, is affiliated with Trinitas Regional Medical Center, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1669242483
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameMR. MARK LEJACredential: APN
Location Address654 E JERSEY STElizabeth, NJ 07206-1261
Mailing AddressPo Box 89Wood Ridge, NJ 07075-0089 · (973) 519-2269
Phone(908) 994-7552
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateJanuary 3, 2024
Last NPPES UpdateMarch 6, 20242 updates tracked since enumeration
NPPES CertifiedJanuary 31, 2024
✔ NPI 1669242483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in NJ · 26NJ14964400
654 E JERSEY ST, Elizabeth, NJ 07206
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

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

Mr. Mark Leja Apn 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 ID2769960673
PECOS Enrollment IDI20260202001783
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 Mark Leja reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Barnabas Health Medical Group, PC
9.0 mi
Specialist
95 OLD SHORT HILLS RD
West Orange, NJ 07052
  • Reassigned Medicare billing, New Jersey enrollment
  • 757 clinicians in this Medicare group
NPI 1447206420 (888) 724-7123

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

Hospital Affiliations CMS Care Compare

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

Trinitas Regional Medical Center

Acute Care Hospitals · Elizabeth, NJ
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310027
Location225 Williamson StreetElizabeth, NJ 07207 · Union County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07206 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
$98.09 typical visit price
range $63.84 – $190.92
Typical copayment $24.52 (range $15.96 – $47.73)
Most-billed visit code 99203
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
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 20

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

MR. ROCCO BRISCESE MALPC
Counselor (Addiction (Substance Use Disorder))
654 E JERSEY ST
ELIZABETH, NJ 07206
Union County (908) 994-7233
MRS. LISA ROSE MCDERMOTT LSW, LCADC
Social Worker
654 E JERSEY ST
ELIZABETH, NJ 07206
Union County (908) 994-7552
TRINITAS REGIONAL MEDICAL CENTER
General Acute Care Hospital
654 E JERSEY ST
ELIZABETH, NJ 07206
Union County (908) 994-7552
JENNA RAE MCCOOK LCSW
Social Worker
654 E JERSEY ST
ELIZABETH, NJ 07206
Union County (908) 994-7271
TRINITAS REGIONAL MEDICAL CENTER
Psychiatric Hospital
654 E JERSEY ST
ELIZABETH, NJ 07206
Union County (908) 994-7290
MS. MARIA C FIGUEROA LPC
Counselor (Professional)
654 E JERSEY ST
ELIZABETH, NJ 07206
Union County (908) 994-7335
JO-ANN MAY TAN
Social Worker
654 E JERSEY ST
ELIZABETH, NJ 07206
Union County (908) 994-7165
MR. BASHEER AHMAD SHABAZZ LCSW
Social Worker (Clinical)
654 E JERSEY ST
ELIZABETH, NJ 07206
Union County (908) 296-0724

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 Mark Leja's NPI number?

The NPI number for Mark Leja is 1669242483. It was assigned to this individual provider in the NPPES registry on January 3, 2024.

Where is Mark Leja located?

Mark Leja practices at 654 E Jersey St, Elizabeth, NJ 07206. The listed phone number is (908) 994-7552.

What is Mark Leja's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Mark Leja enrolled in Medicare?

Yes. Mark Leja 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.

Which organization bills Medicare for Mark Leja's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Leja reassigns Medicare benefits to Barnabas Health Medical Group, PC (West Orange, NJ). 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 Mark Leja's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Leja accept?

Health plans from Oscar Health list Mark Leja 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 Mark Leja affiliated with any hospitals?

According to CMS data, Mark Leja is affiliated with Trinitas Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Mark Leja was last updated on March 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.