Joseph Derosa, M.D.
Internal Medicine Physician · Westfield, NJ
Joseph Derosa, M.D. is an internal medicine physician with a practice address in Westfield, New Jersey, and NPI 1184671018, issued on May 27, 2006. Check the license (New Jersey 25MA 07201100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Joseph Derosa
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA 07201100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 505 E Broad St, Westfield, NJ 07090
- Phone
- (908) 232-0899
- Enumerated
- May 27, 2006
- Record last updated
- Sep 21, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (908) 232-1728
- Medicare enrollment
- Enrolled (PECOS I20120831000490); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 1991
- Entity
- Type 1 · individual
Also registered at 505 E Broad St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph Derosa 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 25MA 07201100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,172 Medicare Part D claims for 180 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 41 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium213 claims
- Ezetimibe113 claims
- Synthroid80 claims
- Alprazolam79 claims
- Atorvastatin Calcium78 claims
- Amlodipine Besylate60 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: $120.87
8 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
20 internal medicine physician records list a practice address in Westfield
They are 20 of the 938 NPPES records with a practice address in Westfield, and 4,632 internal medicine physician records in New Jersey.
All 20 in Westfield → All 4,632 in New Jersey → Every provider in Westfield →
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
- Anthony Abbruzzi, D.O.Pleasantville, NJ1629034905
Common questions
What is Joseph Derosa, M.D.'s NPI number?
Joseph Derosa, M.D.'s National Provider Identifier (NPI) is 1184671018, issued on May 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Derosa, M.D. located?
The NPPES record lists a practice address at 505 E Broad St, Westfield, NJ, 07090. Phone: (908) 232-0899. Providers update this record themselves, so call before visiting.
How can I verify Joseph Derosa, M.D.'s license?
NPPES lists New Jersey license number 25MA 07201100, 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 Joseph Derosa, M.D. prescribe under Medicare Part D?
In 2024, Joseph Derosa, M.D. had 2,172 Medicare Part D claims for 180 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.