John M Dalena and Darren R Blumberg MD LLC
NPI 1033255096 · Gastroenterology Physician · Cedar Knolls, NJ
John M Dalena and Darren R Blumberg MD LLC is a Gastroenterology Physician organization in Cedar Knolls, NJ (NPI 1033255096).
Provider details
- NPI number
- 1033255096
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Elsie Duque, Office Administrator(973) 401-0500
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
19 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
- 2007-01-29
- Last updated
- 2013-06-11
Frequently asked questions
- What is John M Dalena and Darren R Blumberg MD LLC's NPI number?
- John M Dalena and Darren R Blumberg MD LLC's National Provider Identifier (NPI) is 1033255096, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John M Dalena and Darren R Blumberg MD LLC?
- John M Dalena and Darren R Blumberg MD LLC is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John M Dalena and Darren R Blumberg MD LLC located?
- John M Dalena and Darren R Blumberg MD LLC's practice location on file with NPPES is 65 Ridgedale Ave, Cedar Knolls, NJ 07927-1313.
- What is John M Dalena and Darren R Blumberg MD LLC's phone number?
- The practice phone number listed in the NPPES registry for John M Dalena and Darren R Blumberg MD LLC is (973) 401-0500.
- Who is the authorized official for John M Dalena and Darren R Blumberg MD LLC?
- The authorized official listed on John M Dalena and Darren R Blumberg MD LLC's NPPES record is Elsie Duque, Office Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John M Dalena and Darren R Blumberg MD LLC's NPI active?
- Yes — John M Dalena and Darren R Blumberg MD LLC's NPI (1033255096) is active in the NPPES registry as of the last update on 2013-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.