NPPES file of Aug 9, 2026

Fred M. Silverberg, M.D.

Obstetrics & Gynecology Physician · Chatham, NJ

Fred M. Silverberg, M.D. is an obstetrics & gynecology physician with a practice address in Chatham, New Jersey, and NPI 1922055201, issued on May 30, 2006. Check the license (New Jersey 25MA04673300, 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
1922055201
Name
Fred M. Silverberg
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
25MA04673300 NJ
Self-reported in NPPES; status is on the state search
Practice location
33 Main St, Chatham, NJ 07928
Phone
(973) 635-2299
Enumerated
May 30, 2006
Record last updated
Nov 9, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(973) 635-8187
Medicare enrollment
Enrolled (PECOS I20070906000058); accepts Medicare assignment
Medical or professional school
Virginia Commonwealth Univ School Of Dentistry, 1980
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 33 Main St

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

  1. Neal Leynor, PH.D.Psychologist1013049071
  2. Richard Riva, DDSOral and Maxillofacial Surgery (Dentist)1538292958

Verify Fred M. Silverberg 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 25MA04673300
    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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93% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

12 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Fred Silverberg12
  2. Specialty average165

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. Rutgers Health-Rwj Scleroderma ProgramNew Brunswick, NJ
  2. Rutgers Rwj Eric B. Chandler Health CenterNew Brunswick, NJ

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

Obstetrics & Gynecology Physician providers in New Jersey

There are 1,362 obstetrics & gynecology physician records in New Jersey.

Other obstetrics & gynecology physician records in New Jersey

  1. Pegah Aalami-HarandiPaterson, NJ1740654441
  2. Aileen Abankwa, MDVineland, NJ1457840365
  3. Tara Abella, M.D.Livingston, NJ1104051242
  4. Manisha Abeysinghe, MDFlemington, NJ1306807045
  5. Nazima Abrarova, M.D.Plainfield, NJ1487850319
  6. Rashmi Acharya, MDNorth Brunswick, NJ1871538405
  7. Melissa Ackerman, MDPrinceton, NJ1093877466
  8. Shaun AdairMorristown, NJ1376906693
  9. Susanne Adamson, M.D.Voorhees, NJ1679646012
  10. Rotanna Adefowokan, MDNeptune, NJ1417220146

Common questions

What is Fred M. Silverberg, M.D.'s NPI number?

Fred M. Silverberg, M.D.'s National Provider Identifier (NPI) is 1922055201, issued on May 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Fred M. Silverberg, M.D. located?

The NPPES record lists a practice address at 33 Main St, Chatham, NJ, 07928. Phone: (973) 635-2299. Providers update this record themselves, so call before visiting.

How can I verify Fred M. Silverberg, M.D.'s license?

NPPES lists New Jersey license number 25MA04673300, 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 Fred M. Silverberg, M.D. prescribe under Medicare Part D?

In 2024, Fred M. Silverberg, M.D. had 12 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.