Hayner Internal Medicine Associates, PLLC in Howell, MI
This location of Hayner Internal Medicine Associates bills under NPI 1013580836, an organization record issued on Jul 20, 2021 with the primary taxonomy Internal Medicine Physician. It is one of 2 NPIs registered under this name and one of 2 in Howell; each clinician who sees you there has their own NPI and license.
- Legal name
- Hayner Internal Medicine Associates, PLLC
- Entity
- Type 2 · organization
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 1221 BYRON RD STE 2AND3, Howell, MI 48843
- Phone
- 517-273-9090
- Mailing address
- Pinckney, MI
- Enumerated
- Jul 20, 2021
- Record updated
- Apr 30, 2026
- Authorized official
- Practice Manager (title as filed)
The other Howell NPI
- Hayner Internal Medicine Associates, PLLC1225 W GRAND RIVER AVE STE 200 · issued Feb 12, 20211154914976
2 clinicians CMS lists with Hayner Internal Medicine Associates in Howell
- James Hayner, MDSports Medicine (Internal Medicine) Physician1902965601
- Art Szyniszewski, MD, FACCInterventional Cardiology Physician1174590640
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Every location registered under this name, in 1 city.
See every locationChecking an organization
- Confirm the business with the Michigan secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
Common questions
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Which Howell NPI should I use?
Ask the office which NPI it bills under; all 2 Howell NPIs are registered under the same name.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.