County of Union
NPI 1558363127 · Psychiatry Physician · Berkeley Heights, NJ
Enrolled with Medicare as Part B Supplier - Hospital Department(s) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
County of Union is a Psychiatry Physician organization in Berkeley Heights, NJ (NPI 1558363127).
Provider details
- NPI number
- 1558363127
- Entity type
- Organization
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- County of Union
- Organization subpart
- Yes
- Authorized official
- Erick Mesias, County Comptroller(908) 527-4754
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
20 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
- Cornerstone Behavioral Health Hospital of Union County
- Doing business as
- Cornerstone Behavioral Health Hospital of Union County
Registry dates
- Enumerated
- 2005-08-12
- Last updated
- 2020-12-11
- Certified
- 2020-12-11
Frequently asked questions
- What is County of Union's NPI number?
- County of Union's National Provider Identifier (NPI) is 1558363127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is County of Union?
- County of Union is classified in the NPPES registry as Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is County of Union located?
- County of Union's practice location on file with NPPES is 40 Watchung Way, Berkeley Heights, NJ 07922-2600.
- What is County of Union's phone number?
- The practice phone number listed in the NPPES registry for County of Union is (908) 771-5705.
- Does County of Union accept Medicare?
- County of Union 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 County of Union?
- The authorized official listed on County of Union's NPPES record is Erick Mesias, County Comptroller. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is County of Union's NPI active?
- Yes — County of Union's NPI (1558363127) is active in the NPPES registry as of the last update on 2020-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.