NPPES file of Aug 9, 2026

Glen Gejerman, MD

Radiation Oncology Physician · Hackensack, NJ

Glen Gejerman, MD is a radiation oncology physician with a practice address in Hackensack, New Jersey, and NPI 1972565182, issued on Apr 4, 2006. Check the license (New Jersey 25MA06178800, 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
1972565182
Name
Glen Gejerman
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
25MA06178800 NJ
Self-reported in NPPES; status is on the state search
Practice location
92 2ND St, Hackensack, NJ 07601
Phone
(551) 996-2210
Enumerated
Apr 4, 2006
Record last updated
Mar 15, 2022
Fax
(551) 996-0946
Medicare enrollment
Enrolled (PECOS I20050720000120); accepts Medicare assignment
Medical or professional school
Rutgers New Jersey Medical School, 1990
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 92 2ND St

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

  1. Maher AlbitarAnatomic Pathology & Clinical Pathology Physician1063593473
  2. Robert Alter, MDMedical Oncology Physician1306805460
  3. Nicole AraujoNurse Practitioner1740015163
  4. Melissa Baker, APN-BCAdult Health Nurse Practitioner1649439993
  5. Stephanie Baum, APNGerontology Nurse Practitioner1609540335
  6. Coleen Bejot, APNAdult Health Nurse Practitioner1790277424

Verify Glen Gejerman 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 25MA06178800
    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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5.7 times the Medicare Part D claims of the average radiation oncology physician in 2024

761 Medicare Part D claims for 450 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Glen Gejerman761
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl324 claims
  2. Ciprofloxacin Hcl309 claims
  3. Alendronate Sodium62 claims
  4. Sulfamethoxazole-Trimethoprim11 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: $37,853.66

22 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Teleflex LLC. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Glen Gejerman$37,854
  2. Specialty average$1,898

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Regional Cancer Care Associates LLCHackensack, NJ
  2. Summit Medical Group PABerkeley Heights, NJ

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

Glen Gejerman among 153 radiation oncology physician records in New Jersey

Glen Gejerman, MD is one of 153 radiation oncology physician records with a practice address in New Jersey. 83% 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 18% of them.

  • NPI issued2006 · 18% of these records are older, 44% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1990 · median 2001 among the 114 with a school on file
  • Record last updated2022 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in New Jersey

There are 153 radiation oncology physician records in New Jersey.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Nicholas Denunzio, M.D., PH.D.Hackensack, NJ 076011295154680
  2. Loren Godfrey, MDHackensack, NJ 076011780645911
  3. Brett Lewis, M.D.Hackensack, NJ 076011306010806
  4. David Dubin, MDEnglewood, NJ 076311205881703
  5. Mei Zhang, MDEnglewood, NJ 076311457306045
  6. David Billing, MD, PHDMontvale, NJ 076451760944714
  7. Diana Roth O'Brien, MD, MPH, BAMontvale, NJ 076451043606957
  8. Hua-Ren Cherng, MDParamus, NJ 076521780210625

Common questions

What is Glen Gejerman, MD's NPI number?

Glen Gejerman, MD's National Provider Identifier (NPI) is 1972565182, issued on Apr 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Glen Gejerman, MD located?

The NPPES record lists a practice address at 92 2ND St, Hackensack, NJ, 07601. Phone: (551) 996-2210. Providers update this record themselves, so call before visiting.

How can I verify Glen Gejerman, MD's license?

NPPES lists New Jersey license number 25MA06178800, 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 Glen Gejerman, MD prescribe under Medicare Part D?

In 2024, Glen Gejerman, MD had 761 Medicare Part D claims for 450 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.