Mark Katz, DO
NPI 1063215895 · Student in an Organized Health Care Education/Training Program · Port Jefferson, NY
Mark Katz, DO is a Student in an Organized Health Care Education/Training Program provider in Port Jefferson, NY (NPI 1063215895).
Provider details
- NPI number
- 1063215895
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
Mailing address
Registry dates
- Enumerated
- 2025-03-28
- Last updated
- 2025-03-28
- Certified
- 2025-03-28
Frequently asked questions
- What is Mark Katz's NPI number?
- Mark Katz's National Provider Identifier (NPI) is 1063215895, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Katz's specialty?
- Mark Katz is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Mark Katz located?
- Mark Katz's practice location on file with NPPES is 75 N Country Rd, Port Jefferson, NY 11777-2119.
- What is Mark Katz's phone number?
- The practice phone number listed in the NPPES registry for Mark Katz is (631) 473-1320.
- Is Mark Katz's NPI active?
- Yes — Mark Katz's NPI (1063215895) is active in the NPPES registry as of the last update on 2025-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.