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DENISE D. NAJJAR M.D.
NPI 1104911718
Pathology - Neuropathology in Philadelphia, PA

Active since October 03, 2006PECOS EnrolledAccepts Medicare Assignment
5501 OLD YORK ROAD, TOWER GRD FL, PHILADELPHIA, PA 19141(215) 456-6157(215) 456-6426 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Denise D. Najjar M.d. NPPES

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

DENISE D. NAJJAR M.D. (NPI 1104911718) is an individual neuropathology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD039592L) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1978).

NPPES Registry Identity

NPI1104911718
Entity TypeIndividualFemale
Primary Taxonomy207ZN0500X
Provider Legal NameDENISE D. NAJJARCredential: M.D.
Location Address5501 OLD YORK ROAD, TOWER GRD FLPhiladelphia, PA 19141
Mailing Address101 E Olney Ave, Suite 505Philadelphia, PA 19120 · (215) 456-7000 · Fax (215) 254-2599
Phone(215) 456-6157
Fax(215) 456-6426
Sole ProprietorNo
Medical School CMSOtherGraduated 1978
Enumeration DateOctober 3, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1104911718 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · NeuropathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZN0500X
License✔ Licensed in PA · MD039592L
Definition
A neuropathologist is expert in the diagnosis of diseases of the nervous system and skeletal muscles and functions as a consultant primarily to neurologists and neurosurgeons. The neuropathologist is knowledgeable in the infirmities of humans as they affect the nervous and neuromuscular systems, be they degenerative, infectious, metabolic, immunologic, neoplastic, vascular or physical in nature.
5501 OLD YORK ROAD, Philadelphia, PA 19141
Open in Google Maps ↗

Other Identifiers 3

Medicaid001125420PA
Medicare ID-Type Unspecified0000105304PA
Medicare UPINB36607PA

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

Denise D. Najjar M.d. 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 ID2860663101
PECOS Enrollment IDI20110919000400
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 Reassignments

2

Medicare enrollment records show Denise Najjar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Alliance Physician Services, PC
5.2 mi
Urology
1 PRESIDENTIAL BLVD STE 100
Bala Cynwyd, PA 19004
  • Reassigned Medicare billing, Pennsylvania enrollment
  • Medicare enrollment name: The Centers For Advanced Urology LLP
  • 146 clinicians in this Medicare group
NPI 1558889956 (610) 632-4100
Regional Gastroenterology Associates Of Lancaster, Ltd.
64 mi
Gastroenterology
2112 HARRISBURG PIKE STE 202
Lancaster, PA 17601
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 343 clinicians in this Medicare group
NPI 1154422806 (717) 869-4600

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 10

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
4,209 services1,794 patients
Cell examination of specimen, selective cellular enhancement technique 88112
Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.
2,548 services2,245 patients
Cell examination of urine, computer-assisted 88121
A cell examination of urine, computer-assisted, is a lab test where a computer helps analyze your urine sample. It aids in identifying any abnormal cells or substances that may indicate health issues. The process is painless and involves collecting a urine sample.
1,203 services1,053 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
1,118 services615 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
884 services707 patients
Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method G0416
This procedure involves taking a small tissue sample from your gland located beneath your bladder. The sample is then examined under a microscope by a pathologist to check for any abnormalities or diseases. This is a standard method to ensure your well-being.
508 services505 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19141 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
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
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.

MS. ANNA GLINIANSKA DDS
Dentist
5501 OLD YORK ROAD, EINSTEIN HEALTHCARE NETWORK
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-8033
SAMIA ALEEM M.D.
Pediatrics (Neonatal-Perinatal Medicine)
5501 OLD YORK ROAD, ALBERT EINSTEIN MEDICAL CENTER
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7595
EDWARD SUTTON JR.
Physician Assistant
5501 OLD YORK ROAD, EINSTEINMEDICAL CENTER TABOR EMERGENCY PHYSICIANS
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-8037
LAURA MCGARRY DO
Urology
5501 OLD YORK ROAD, ALBERT EINSTEIN MEDICAL CENTER
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-5140
SUE Y LEE MD
Orthopaedic Surgery
5501 OLD YORK ROAD, WILLOWCREST ROAD 4TH FL
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7900
ANNA SADUJKO
Student in an Organized Health Care Education/Training Program
5501 OLD YORK ROAD
PHILADELPHIA, PA 19141
Philadelphia County (484) 622-1000
MS. BARBARA J HARE CRNP
Nurse Practitioner (Obstetrics & Gynecology)
5501 OLD YORK ROAD, PALEY 3 OB-GYN
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7180
DR. MARK SCOTT MORGINSTIN DO
Internal Medicine (Hematology & Oncology)
5501 OLD YORK ROAD, ALBERT EINSTEIN MEDICAL CENTER
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-3800

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 Denise Najjar's NPI number?

The NPI number for Denise Najjar is 1104911718. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Denise Najjar located?

Denise Najjar practices at 5501 Old York Road Tower Grd Fl, Philadelphia, PA 19141. The listed phone number is (215) 456-6157.

What is Denise Najjar's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Neuropathology, with taxonomy code 207ZN0500X.

Is Denise Najjar enrolled in Medicare?

Yes. Denise Najjar 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 organizations bill Medicare for Denise Najjar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Denise Najjar reassigns Medicare benefits to 2 organizations: Alliance Physician Services, PC (Bala Cynwyd, PA) and Regional Gastroenterology Associates Of Lancaster, Ltd. (Lancaster, PA). Each 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 Denise Najjar'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 Denise Najjar was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.