IndividualActive
Mark Stewart, MDIV, MST
NPI 1922232727 · Behavior Analyst · York, PA
Mark Stewart, MDIV, MST is a Behavior Analyst provider in York, PA (NPI 1922232727).
Provider details
- NPI number
- 1922232727
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Credential
- MDIV, MST
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(79/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
83% 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
128 North George Street
York, PA 17401-1117
Phone: (717) 854-6800
Fax: (717) 846-0005
Street-level locationGet directions
Mailing address
200 N 7th Street
Lebanon, PA 17046-5040
Registry dates
- Enumerated
- 2009-05-07
- Last updated
- 2009-05-07
Frequently asked questions
- What is Mark Stewart's NPI number?
- Mark Stewart's National Provider Identifier (NPI) is 1922232727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stewart's specialty?
- Mark Stewart is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Mark Stewart located?
- Mark Stewart's practice location on file with NPPES is 128 North George Street, York, PA 17401-1117.
- What is Mark Stewart's phone number?
- The practice phone number listed in the NPPES registry for Mark Stewart is (717) 854-6800.
- Is Mark Stewart's NPI active?
- Yes — Mark Stewart's NPI (1922232727) is active in the NPPES registry as of the last update on 2009-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.