NPPES file of Aug 9, 2026

Manal F. Youssef-Bessler, M.D.

Infectious Disease Physician · Whippany, NJ

Manal F. Youssef-Bessler, M.D. is an infectious disease physician with a practice address in Whippany, New Jersey, and NPI 1649236027, issued on Apr 25, 2006. Check the license (New Jersey 25MAO7758200, 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
1649236027
Name
Manal F. Youssef-Bessler
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
25MAO7758200 NJ
Self-reported in NPPES; status is on the state search
Practice location
568 Route 10 W, Whippany, NJ 07981
Phone
(973) 535-8355
Enumerated
Apr 25, 2006
Record last updated
Oct 3, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(973) 535-8353
Medicare enrollment
Enrolled (PECOS I20060404000528); 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 568 Route 10 W

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

  1. Lyubomyr Golovko, APNNurse Practitioner1407382989

Verify Manal F. Youssef-Bessler 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 25MAO7758200
    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

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50% fewer Medicare Part D claims than the average infectious disease physician in 2024

342 Medicare Part D claims for 78 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Manal Youssef-Bessler342
  2. Specialty average689

Most prescribed

  1. Daptomycin49 claims
  2. Cefepime Hcl29 claims
  3. Ertapenem27 claims
  4. Dovato16 claims
  5. Nystatin14 claims
  6. Amoxicillin-Clavulanate Potass13 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: $440.65

19 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Manal Youssef-Bessler$440.65
  2. Specialty average$4,362.19

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. Infectious Disease Center OF New Jersey, LLCWhippany, NJ

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

Manal F. Youssef-Bessler among 375 infectious disease physician records in New Jersey

Manal F. Youssef-Bessler, M.D. is one of 375 infectious disease physician records with a practice address in New Jersey. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 49% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated1992 · median 2000 among the 285 with a school on file
  • Record last updated2019 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 infectious disease physician records list a practice address in Whippany

They are 2 of the 130 NPPES records with a practice address in Whippany, and 375 infectious disease physician records in New Jersey.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Christina Cloke, MDWhippany, NJ 079811306254289
  2. Max Deshaw, M.D.Morristown, NJ 079601508808940
  3. Jason Kessler, MDMorristown, NJ 079601255598850
  4. Usharani Natarajan, M.D.Morristown, NJ 079601487620456
  5. Olena Stepanyuk, MDMorristown, NJ 079601861690380
  6. Joseph Derose, D.O.Turnersville, NJ 080121003158247
  7. Rania Aboujaoude, M.D.Browns Mills, NJ 080151801839667
  8. Chester Smialowicz, M.D.Browns Mills, NJ 080151003857467

Common questions

What is Manal F. Youssef-Bessler, M.D.'s NPI number?

Manal F. Youssef-Bessler, M.D.'s National Provider Identifier (NPI) is 1649236027, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Manal F. Youssef-Bessler, M.D. located?

The NPPES record lists a practice address at 568 Route 10 W, Whippany, NJ, 07981. Phone: (973) 535-8355. Providers update this record themselves, so call before visiting.

How can I verify Manal F. Youssef-Bessler, M.D.'s license?

NPPES lists New Jersey license number 25MAO7758200, 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 Manal F. Youssef-Bessler, M.D. prescribe under Medicare Part D?

In 2024, Manal F. Youssef-Bessler, M.D. had 342 Medicare Part D claims for 78 beneficiaries; the average among infectious disease physician prescribers was 689. 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.