Cassandra Holliday
NPI 1366100653 · Addiction (Substance Use Disorder) Counselor · Baltimore, MD
Cassandra Holliday is a Addiction (Substance Use Disorder) Counselor provider in Baltimore, MD (NPI 1366100653).
Provider details
- NPI number
- 1366100653
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- ADT2372 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social 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
- 2021-12-03
- Last updated
- 2023-09-15
- Certified
- 2023-09-15
Frequently asked questions
- What is Cassandra Holliday's NPI number?
- Cassandra Holliday's National Provider Identifier (NPI) is 1366100653, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Holliday's specialty?
- Cassandra Holliday is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Cassandra Holliday located?
- Cassandra Holliday's practice location on file with NPPES is 4345 Old Frederick Rd, Baltimore, MD 21229-2838.
- What is Cassandra Holliday's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Holliday is (240) 516-8021.
- Is Cassandra Holliday's NPI active?
- Yes — Cassandra Holliday's NPI (1366100653) is active in the NPPES registry as of the last update on 2023-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.