Joseph Derosa, MD, LLC
NPI 1831448323 · Internal Medicine Physician · Westfield, NJ
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Derosa, MD, LLC is a Internal Medicine Physician organization in Westfield, NJ (NPI 1831448323).
Provider details
- NPI number
- 1831448323
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Joseph Derosa, Doctor(908) 654-1190
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Westfield Internal Medicine
Registry dates
- Enumerated
- 2012-08-30
- Last updated
- 2012-08-30
Frequently asked questions
- What is Joseph Derosa, MD, LLC's NPI number?
- Joseph Derosa, MD, LLC's National Provider Identifier (NPI) is 1831448323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Joseph Derosa, MD, LLC?
- Joseph Derosa, MD, LLC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Derosa, MD, LLC located?
- Joseph Derosa, MD, LLC's practice location on file with NPPES is 220 Elmer Street, Westfield, NJ 07090.
- What is Joseph Derosa, MD, LLC's phone number?
- The practice phone number listed in the NPPES registry for Joseph Derosa, MD, LLC is (908) 654-1190.
- Does Joseph Derosa, MD, LLC accept Medicare?
- Joseph Derosa, MD, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Joseph Derosa, MD, LLC?
- The authorized official listed on Joseph Derosa, MD, LLC's NPPES record is Joseph Derosa, Doctor. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Joseph Derosa, MD, LLC's NPI active?
- Yes — Joseph Derosa, MD, LLC's NPI (1831448323) is active in the NPPES registry as of the last update on 2012-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.