NPPES file of Aug 9, 2026

Denise D. Najjar, M.D.

Neuropathology Physician · Philadelphia, PA

Denise D. Najjar, M.D. is a neuropathology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1104911718, issued on Oct 3, 2006. Check the license (Pennsylvania MD039592L, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1104911718
Name
Denise D. Najjar
Credential
M.D.
Primary taxonomy
Neuropathology Physician 207ZN0500X
License number
MD039592L PA
Self-reported in NPPES; status is on the state search
Practice location
5501 Old York Road, Philadelphia, PA 19141
Phone
(215) 456-6157
Enumerated
Oct 3, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(215) 456-6426
Medicaid ID
001125420 PA
Medicare enrollment
Enrolled (PECOS I20110919000400); accepts Medicare assignment
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.
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Also registered at 5501 Old York Road

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

  1. Samia Aleem, M.D.Neonatal-Perinatal Medicine Physician1043623713
  2. Russell Bates, DPMFoot & Ankle Surgery Podiatrist1164822599
  3. Mary BellStudent in an Organized Health Care Education/Training Program1942049556
  4. Lisa Berkowitz, DOObstetrics & Gynecology Physician1942878152
  5. Vivek Bilolikar, MDOrthopaedic Surgery Physician1922676261
  6. Matthew Callaghan, M.D.Vascular & Interventional Radiology Physician1619317492

Verify Denise D. Najjar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD039592L    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
Open the Pennsylvania license search

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77% fewer Medicare Part D claims than the average neuropathology physician in 2024

18 Medicare Part D claims, against an average of 77 among the 8 providers of this specialty who prescribed in Part D.

  1. Denise Najjar18
  2. Specialty average77

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.

Bills Medicare through 2 group practices

  1. Regional Gastroenterology Associates OF Lancaster, Ltd.Wynnewood, PA
  2. The Centers For Advanced Urology LLPKing Of Prussia, PA

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

Neuropathology Physician providers in Pennsylvania

There are 14 neuropathology physician records in Pennsylvania.

All 14 in Pennsylvania → Every provider in Philadelphia →

Other neuropathology physician records in Pennsylvania

  1. Ierachmiel Daskal, M.D., PHDPhiladelphia, PA1194811257
  2. Mark Forman, MDPhiladelphia, PA1346285871
  3. Kymberly Gyure, M.D.Pittsburgh, PA1942275359
  4. Zachary Hoffer, MD., PH.D.Danville, PA1831348374
  5. Syed Kazmi, MDDanville, PA1750591970
  6. Edward Lee, MDPhiladelphia, PA1063579050
  7. Zissimos Mourelatos, MDPhiladelphia, PA1023046513
  8. Maclean Nasrallah, M.D.Philadelphia, PA1699037770
  9. Thomas Pearce, MD, PHDPittsburgh, PA1245769041
  10. Drew Pratt, MDPittsburgh, PA1194131763

Common questions

What is Denise D. Najjar, M.D.'s NPI number?

Denise D. Najjar, M.D.'s National Provider Identifier (NPI) is 1104911718, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Denise D. Najjar, M.D. located?

The NPPES record lists a practice address at 5501 Old York Road, Philadelphia, PA, 19141. Phone: (215) 456-6157. Providers update this record themselves, so call before visiting.

How can I verify Denise D. Najjar, M.D.'s license?

NPPES lists Pennsylvania license number MD039592L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Denise D. Najjar, M.D. prescribe under Medicare Part D?

In 2024, Denise D. Najjar, M.D. had 18 Medicare Part D claims; the average among neuropathology physician prescribers was 77. 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.