James Joseph Matera, DO
Nephrology Physician · South River, NJ
James Joseph Matera, DO is a nephrology physician with a practice address in South River, New Jersey, and NPI 1336139732, issued on Oct 26, 2005. Check the license (New Jersey 55453, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Joseph Matera
- Credential
- DO
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 55453 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 8 Old Bridge Tpke, South River, NJ 08882
- Phone
- (732) 390-4888
- Enumerated
- Oct 26, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (732) 390-0255
- Medicaid ID
- 6437800 NJ
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 433 in New Jersey → Look up another NPI →
Also registered at 8 Old Bridge Tpke
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Covit, MDNephrology Physician1528058922
Verify James Joseph Matera 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 55453Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average nephrology physician in 2024
24 Medicare Part D claims for 11 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
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.
James Joseph Matera among 433 nephrology physician records in New Jersey
James Joseph Matera, DO is one of 433 nephrology physician records with a practice address in New Jersey. 88% 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, 87% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileNo · 78% of these records are
- Record last updated2026 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 nephrology physician records list a practice address in South River
They are 4 of the 65 NPPES records with a practice address in South River, and 433 nephrology physician records in New Jersey.
All 433 in New Jersey → Every provider in South River → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Andrew Covit, MDSouth River, NJ 088821528058922
- Thomas Drabik, DOSouth River, NJ 088821619967064
- Glenn Dubov, MDSouth River, NJ 088821407846884
- Kobena Dadzie, MDSomerset, NJ 088731023332921
- Bijal Desai, MDSomerset, NJ 088731104963230
- Parisa Hakimzadeh, D.O.Somerset, NJ 088731104826718
- Sandesh Jain, MDSomerset, NJ 088731831236967
- Sunit Kabaria, MDSomerset, NJ 088731134266240
Common questions
What is James Joseph Matera, DO's NPI number?
James Joseph Matera, DO's National Provider Identifier (NPI) is 1336139732, issued on Oct 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Joseph Matera, DO located?
The NPPES record lists a practice address at 8 Old Bridge Tpke, South River, NJ, 08882. Phone: (732) 390-4888. Providers update this record themselves, so call before visiting.
How can I verify James Joseph Matera, DO's license?
NPPES lists New Jersey license number 55453, 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 James Joseph Matera, DO prescribe under Medicare Part D?
In 2024, James Joseph Matera, DO had 24 Medicare Part D claims for 11 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.