Ernest Defazio, MD
Internal Medicine Physician · Nutley, NJ
Ernest Defazio, MD is an internal medicine physician with a practice address in Nutley, New Jersey, and NPI 1477511707, issued on May 3, 2006. Check the license (New Jersey 25MA03416900, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Ernest Defazio
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA03416900 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 181 Franklin Ave, Nutley, NJ 07110
- Phone
- (973) 667-6660
- Enumerated
- May 3, 2006
- Entity
- Type 1 · individual
Also registered at 181 Franklin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Agresti, DOInternal Medicine Physician1578511135
- Joseph Brignola, MDInternal Medicine Physician1508824897
- Louis Citarelli, MDInternal Medicine Physician1063520484
- Samantha De Almeida, APNPrimary Care Nurse Practitioner1770931396
- Louis Fusilli, MD FACCCardiovascular Disease Physician1790702678
Verify Ernest Defazio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA03416900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
76% fewer Medicare Part D claims than the average internal medicine physician in 2024
677 Medicare Part D claims for 23 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Atorvastatin Calcium41 claims
- Oxycodone Hcl32 claims
- Pantoprazole Sodium25 claims
- Xarelto25 claims
- Metformin Hcl24 claims
- Gabapentin23 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.
One hospital or facility affiliation
- Internet Medical Group P CNutley, NJ
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
20 internal medicine physician records list a Nutley practice address
They are 20 of the 520 NPPES records with a Nutley practice address, and 5,156 internal medicine physician records in New Jersey.
All 20 in Nutley → All 5,156 in New Jersey → Every provider in Nutley →
Other internal medicine physician records in New Jersey
- Joseph Aaron, MD, FACPShort Hills, NJ1861584633
- Sirike Aasmaa, DOMontville, NJ1861549925
- Holly Abate Bersalona, M.D.Sea Girt, NJ1669500492
- Kaniz Zehra Abbas, MDTrenton, NJ1598253858
- Shahida Abbas, MDOld Bridge, NJ1023104098
- Shahed AbbasiNewark, NJ1477810752
- Samih Abbassi, MDWest Orange, NJ1750380358
- Somaya Abboud, MDWest Orange, NJ1326089004
- Hilal Abboushi, MDBloomfield, NJ1548378029
- Majdi Abdalla, M.D.Atlantic City, NJ1922230135
Common questions
What is Ernest Defazio, MD's NPI number?
Ernest Defazio, MD's National Provider Identifier (NPI) is 1477511707, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ernest Defazio, MD located?
The NPPES record lists a practice address at 181 Franklin Ave, Nutley, NJ, 07110. Phone: (973) 667-6660. Providers update this record themselves, so call before visiting.
How can I verify Ernest Defazio, MD's license?
NPPES lists New Jersey license number 25MA03416900, 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 Ernest Defazio, MD prescribe under Medicare Part D?
In 2024, Ernest Defazio, MD had 677 Medicare Part D claims for 23 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.