NPPES file of Aug 9, 2026

Hisham A. Mahmoud, D.O.

Family Medicine Physician · Morristown, NJ

Hisham A. Mahmoud, D.O. is a family medicine physician with a practice address in Morristown, New Jersey, and NPI 1164818027, issued on Apr 7, 2015. Check the license (New Jersey 25MB10657800, as entered in NPPES) on the New Jersey State Board of Medical Examiners; 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
1164818027
Name
Hisham A. Mahmoud
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
25MB10657800 NJ
Self-reported in NPPES; status is on the state search
Practice location
100 Madison Ave, Morristown, NJ 07960
Phone
(973) 971-5000
Enumerated
Apr 7, 2015
Record last updated
Aug 27, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191120002073); 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.
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Also registered at 100 Madison Ave

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

  1. Karen AbboudDentist1659121259
  2. Omar Abdelfattah, MBBCHStudent in an Organized Health Care Education/Training Program1003444167
  3. Ahmed Abdelhalim, MDInternal Medicine Physician1104386051
  4. Bavly Abdelmesih, MDStudent in an Organized Health Care Education/Training Program1932901378
  5. Fatema Abdulhussein, MDStudent in an Organized Health Care Education/Training Program1235514274
  6. Arkadiy Abkin, MDAnesthesiology Physician1316928666

Verify Hisham A. Mahmoud in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MB10657800
    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 New Jersey 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.

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85% more Medicare Part D claims than the average family medicine physician in 2024

6,560 Medicare Part D claims for 676 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 18 claims were for opioids.

  1. Hisham Mahmoud6,560
  2. Specialty average3,544

Most prescribed

  1. Rosuvastatin Calcium394 claims
  2. Atorvastatin Calcium375 claims
  3. Amlodipine Besylate292 claims
  4. Levothyroxine Sodium281 claims
  5. Lisinopril259 claims
  6. Losartan Potassium242 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: $296.31

5 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hisham Mahmoud$296.31
  2. Specialty average$902.55

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. Atlanticare Physician Group PACape May Court House, NJ

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

Hisham A. Mahmoud among 2,770 family medicine physician records in New Jersey

Hisham A. Mahmoud, D.O. is one of 2,770 family medicine physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 74% of them.

  • NPI issued2015 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2015 · median 2006 among the 1,875 with a school on file
  • Record last updated2019 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

50 family medicine physician records list a practice address in Morristown

They are 50 of the 2,942 NPPES records with a practice address in Morristown, and 2,770 family medicine physician records in New Jersey.

The 8 family medicine physician records with the nearest ZIP codes

  1. Bruce Aronwald, D.O.Morristown, NJ 079601154375467
  2. Andrew Becker, D.O.Morristown, NJ 079601164498606
  3. Kenneth Cartaxo, MDMorristown, NJ 079601083700702
  4. Anthony Cioce, D.O.Morristown, NJ 079601063466357
  5. Thomas Cioce, D.O.Morristown, NJ 079601386780310
  6. Catherine Guercio-Hauer, MDMorristown, NJ 079601083670079
  7. Esra Onat, MDMorristown, NJ 079601710912902
  8. Marylin Pierre-Louis, M.D.Morristown, NJ 079601568409274

Common questions

What is Hisham A. Mahmoud, D.O.'s NPI number?

Hisham A. Mahmoud, D.O.'s National Provider Identifier (NPI) is 1164818027, issued on Apr 7, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Hisham A. Mahmoud, D.O. located?

The NPPES record lists a practice address at 100 Madison Ave, Morristown, NJ, 07960. Phone: (973) 971-5000. Providers update this record themselves, so call before visiting.

How can I verify Hisham A. Mahmoud, D.O.'s license?

NPPES lists New Jersey license number 25MB10657800, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Hisham A. Mahmoud, D.O. prescribe under Medicare Part D?

In 2024, Hisham A. Mahmoud, D.O. had 6,560 Medicare Part D claims for 676 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.

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.