Mary Holmes, BSN,RN
NPI 1922741735 · Addiction (Substance Use Disorder) Registered Nurse · Alton, IL
Mary Holmes, BSN,RN is a Addiction (Substance Use Disorder) Registered Nurse provider in Alton, IL (NPI 1922741735).
Provider details
- NPI number
- 1922741735
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) Registered NurseNursing Service Providers
- Credential
- BSN,RN
- Sex
- Female
- Sole proprietor
- No
- License
- 041.169895 (IL)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
- 2022-04-19
- Last updated
- 2022-04-19
- Certified
- 2022-04-19
Frequently asked questions
- What is Mary Holmes's NPI number?
- Mary Holmes's National Provider Identifier (NPI) is 1922741735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Holmes's specialty?
- Mary Holmes is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Registered Nurse (Nursing Service Providers).
- Where is Mary Holmes located?
- Mary Holmes's practice location on file with NPPES is 2615 Edwards St, Alton, IL 62002-3915.
- What is Mary Holmes's phone number?
- The practice phone number listed in the NPPES registry for Mary Holmes is (618) 462-2331.
- Is Mary Holmes's NPI active?
- Yes — Mary Holmes's NPI (1922741735) is active in the NPPES registry as of the last update on 2022-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.