Alliance Healthcare System, Inc
NPI 1912182197 · Psychiatric Hospital · Holly Springs, MS
Enrolled with Medicare as Part a Provider - Hospital · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alliance Healthcare System, Inc is a Psychiatric Hospital organization in Holly Springs, MS (NPI 1912182197).
Provider details
- NPI number
- 1912182197
- Entity type
- Organization
- Primary specialty
- Psychiatric HospitalHospitals
- Parent organization
- Alliance Healthcare System
- Organization subpart
- Yes
- Authorized official
- Perry Williams, Administrator/Ceo(662) 252-1212
- License
- 25S012 (MS)
Specialties & taxonomies
Hospitals
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2008-01-07
- Last updated
- 2008-04-08
Frequently asked questions
- What is Alliance Healthcare System, Inc's NPI number?
- Alliance Healthcare System, Inc's National Provider Identifier (NPI) is 1912182197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Alliance Healthcare System, Inc?
- Alliance Healthcare System, Inc is classified in the NPPES registry as Psychiatric Hospital (Hospitals).
- Where is Alliance Healthcare System, Inc located?
- Alliance Healthcare System, Inc's practice location on file with NPPES is 1430 Highway 4 E, Holly Springs, MS 38635-2140.
- What is Alliance Healthcare System, Inc's phone number?
- The practice phone number listed in the NPPES registry for Alliance Healthcare System, Inc is (662) 252-1212.
- Does Alliance Healthcare System, Inc accept Medicare?
- Alliance Healthcare System, Inc 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 Alliance Healthcare System, Inc?
- The authorized official listed on Alliance Healthcare System, Inc's NPPES record is Perry Williams, Administrator/Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Alliance Healthcare System, Inc's NPI active?
- Yes — Alliance Healthcare System, Inc's NPI (1912182197) is active in the NPPES registry as of the last update on 2008-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.