Essex Gastro Associates, PA
NPI 1114933926 · Gastroenterology Physician · Newark, NJ
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Essex Gastro Associates, PA is a Gastroenterology Physician organization in Newark, NJ (NPI 1114933926).
Provider details
- NPI number
- 1114933926
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Firpo Guerrero, President(973) 589-5545
- License
- 24MA04217500 (NJ)
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
Other names (DBA / former)
- Former legal business name
- Firpo Guerrero, MD, PA
Registry dates
- Enumerated
- 2006-08-01
- Last updated
- 2011-05-13
Frequently asked questions
- What is Essex Gastro Associates, PA's NPI number?
- Essex Gastro Associates, PA's National Provider Identifier (NPI) is 1114933926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Essex Gastro Associates, PA?
- Essex Gastro Associates, PA is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Essex Gastro Associates, PA located?
- Essex Gastro Associates, PA's practice location on file with NPPES is 275 Chestnut St, Newark, NJ 07105-1570.
- What is Essex Gastro Associates, PA's phone number?
- The practice phone number listed in the NPPES registry for Essex Gastro Associates, PA is (973) 589-5545.
- Does Essex Gastro Associates, PA accept Medicare?
- Essex Gastro Associates, PA 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 Essex Gastro Associates, PA?
- The authorized official listed on Essex Gastro Associates, PA's NPPES record is Firpo Guerrero, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Essex Gastro Associates, PA's NPI active?
- Yes — Essex Gastro Associates, PA's NPI (1114933926) is active in the NPPES registry as of the last update on 2011-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.