Andrew Tresslar, MD
NPI 1538959887 · Student in an Organized Health Care Education/Training Program · Kalamazoo, MI
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Tresslar, MD is a Student in an Organized Health Care Education/Training Program provider in Kalamazoo, MI (NPI 1538959887).
Provider details
- NPI number
- 1538959887
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4351054129 (MI)
Specialties & taxonomies
- Student in an Organized Health Care Education/Training ProgramPrimary390200000XLicense 4351054129 (MI)
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
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
- 2025-05-09
- Last updated
- 2025-07-01
- Certified
- 2025-07-01
Frequently asked questions
- What is Andrew Tresslar's NPI number?
- Andrew Tresslar's National Provider Identifier (NPI) is 1538959887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Tresslar's specialty?
- Andrew Tresslar 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 Andrew Tresslar located?
- Andrew Tresslar's practice location on file with NPPES is 1000 Oakland Dr, Kalamazoo, MI 49008-1282.
- What is Andrew Tresslar's phone number?
- The practice phone number listed in the NPPES registry for Andrew Tresslar is (269) 337-3600.
- Does Andrew Tresslar accept Medicare?
- Andrew Tresslar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Tresslar's NPI active?
- Yes — Andrew Tresslar's NPI (1538959887) is active in the NPPES registry as of the last update on 2025-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.