Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Keith A. Johnstone M.D., P.C.

Q: What type of organization is Keith A. Johnstone M.D., P.C.?

Keith A. Johnstone M.D., P.C. is registered in NPPES as a Interventional Cardiology Physician (its primary provider taxonomy).

Interventional Cardiology Physician in Southfield, MI · enumerated 2006 · authorized official Keith Johnstone, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1497866073

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Keith A. Johnstone M.D., P.C.

Practice address 26206 W 12 Mile Rd, 201, Southfield, MI, 48034

Phone (248) 355-4545

Fax (248) 355-3855

Enumeration date Aug 31, 2006

Last updated in NPPES Apr 16, 2014

Taxonomy & classification

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 4301048096 (MI) Primary

282N00000X General Acute Care Hospital Hospitals · License 4301048096 (MI) Secondary

Authorized official

Name Keith Johnstone

Title Owner

Phone (248) 355-4545

Other identifiers

Identifier	Type	State	Issuer
3500119/10	Medicaid	MI	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Keith A. Johnstone M.D., P.C.?

Keith A. Johnstone M.D., P.C. is registered in NPPES as a Interventional Cardiology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-16.