Mendham Medical Practice LLC
NPI 1265917926 · Internal Medicine Physician · Mendham, NJ
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mendham Medical Practice LLC is a Internal Medicine Physician organization in Mendham, NJ (NPI 1265917926).
Provider details
- NPI number
- 1265917926
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gregg Marella, Sole Member(973) 543-6505
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
7 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
Registry dates
- Enumerated
- 2018-09-28
- Last updated
- 2018-11-14
Frequently asked questions
- What is Mendham Medical Practice LLC's NPI number?
- Mendham Medical Practice LLC's National Provider Identifier (NPI) is 1265917926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mendham Medical Practice LLC?
- Mendham Medical Practice LLC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mendham Medical Practice LLC located?
- Mendham Medical Practice LLC's practice location on file with NPPES is 19 E Main St Ste 1, Mendham, NJ 07945-1503.
- What is Mendham Medical Practice LLC's phone number?
- The practice phone number listed in the NPPES registry for Mendham Medical Practice LLC is (973) 543-6505.
- Does Mendham Medical Practice LLC accept Medicare?
- Mendham Medical Practice 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 Mendham Medical Practice LLC?
- The authorized official listed on Mendham Medical Practice LLC's NPPES record is Gregg Marella, Sole Member. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mendham Medical Practice LLC's NPI active?
- Yes — Mendham Medical Practice LLC's NPI (1265917926) is active in the NPPES registry as of the last update on 2018-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.