NPPES file of Aug 9, 2026

Matthew D. Epstein, MD

Sleep Medicine (Internal Medicine) Physician · Cedar Knolls, NJ

Matthew D. Epstein, MD is a sleep medicine (internal medicine) physician with a practice address in Cedar Knolls, New Jersey, and NPI 1922000793, issued on Aug 11, 2005. Check the license (New Jersey 25MA06940100, 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
1922000793
Name
Matthew D. Epstein
Credential
MD
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License number
25MA06940100 NJ
Self-reported in NPPES; status is on the state search
Practice location
8 Saddle RD, Cedar Knolls, NJ 07927
Phone
(973) 267-9393
Enumerated
Aug 11, 2005
Record last updated
Feb 26, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(973) 540-0472
Medicare enrollment
Enrolled (PECOS I20110112000468); 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 8 Saddle RD

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

  1. Melissa Chendorain, D.P.T.Physical Therapist1619990025
  2. Michele Dasilva, RRTRegistered Respiratory Therapist1053354290
  3. Sean Fedyna, M.D.Pulmonary Disease Physician1497071518
  4. Michelle Glowinski, APNCritical Care Medicine Nurse Practitioner1881194140
  5. Donatella Graffino, MDAllergy Physician1952302192
  6. Matthew HewstonSleep Medicine (Internal Medicine) Physician1275929135

Verify Matthew D. Epstein 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 25MA06940100
    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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73% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024

157 Medicare Part D claims for 52 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Matthew Epstein157
  2. Specialty average585

Most prescribed

  1. Clonazepam31 claims
  2. Zolpidem Tartrate22 claims
  3. Armodafinil20 claims
  4. Gabapentin12 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: $68.03

3 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Medical Corporation. The 664 providers of this specialty with any payment received $3,724.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Matthew Epstein$68.03
  2. Specialty average$3,724.37

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. Practice Associates Medical GroupMorristown, NJ

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

Matthew D. Epstein among 27 sleep medicine (internal medicine) physician records in New Jersey

Matthew D. Epstein, MD is one of 27 sleep medicine (internal medicine) physician records with a practice address in New Jersey. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 81% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated1990 · median 2002 among the 22 with a school on file
  • Record last updated2018 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Internal Medicine) Physician providers in New Jersey

There are 27 sleep medicine (internal medicine) physician records in New Jersey.

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Matthew HewstonCedar Knolls, NJ 079271275929135
  2. Anthony Russo, MDMadison, NJ 079401730649989
  3. Federico Cerrone, M.D.Summit, NJ 079011184625220
  4. Jeffrey Nahmias, M.D.Summit, NJ 079011881654036
  5. William Weber, MDSummit, NJ 079011649410481
  6. Dipakkumar Malli, MDCherry Hill, NJ 080031265410831
  7. Jennifer Roszkowski, DOWillingboro, NJ 080461265697528
  8. Olubusola Gomes, MDMarlton, NJ 080531518191493

Common questions

What is Matthew D. Epstein, MD's NPI number?

Matthew D. Epstein, MD's National Provider Identifier (NPI) is 1922000793, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Matthew D. Epstein, MD located?

The NPPES record lists a practice address at 8 Saddle RD, Cedar Knolls, NJ, 07927. Phone: (973) 267-9393. Providers update this record themselves, so call before visiting.

How can I verify Matthew D. Epstein, MD's license?

NPPES lists New Jersey license number 25MA06940100, 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 Matthew D. Epstein, MD prescribe under Medicare Part D?

In 2024, Matthew D. Epstein, MD had 157 Medicare Part D claims for 52 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.