1. Home
  2. Directory
  3. Michigan
  4. Grand Rapids
  5. Internal Medicine
  6. NPI Profile

EXPONENTIAL HEALTH,PC
NPI 1316814668
Internal Medicine in Grand Rapids, MI

Active since October 21, 2025CLIA 23D2332260 · Waiver
2155 E PARIS AVE SE STE 220, GRAND RAPIDS, MI 49546(616) 548-6161(616) 280-5926 Get Directions Write a Review

NPPES record last updated: October 28, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Exponential Health,pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

EXPONENTIAL HEALTH,PC (NPI 1316814668) is a healthcare organization registered as an internal medicine in Grand Rapids, Michigan and active in the NPI registry since October 2025. The organization holds a CLIA Waiver certificate valid through October 15, 2027, maintains 2 additional practice locations, and lists Roger Jansen, Ceo, as its authorized official.

NPPES Registry Identity

NPI1316814668
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameEXPONENTIAL HEALTH,PC
Location Address2155 E PARIS AVE SE STE 220Grand Rapids, MI 49546-6195
Mailing Address5005 Cascade Rd Se Ste BGrand Rapids, MI 49546-8411 · (616) 221-4452 · Fax (616) 333-7233
Phone(616) 548-6161
Fax(616) 280-5926
Organization SubpartNo
Authorized OfficialRoger JansenCeo · (616) 581-2755
Enumeration DateOctober 21, 2025
Last NPPES UpdateOctober 28, 2025
NPPES CertifiedOctober 28, 2025
✔ NPI 1316814668 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedPhysical Medicine & Rehabilitation · Pain MedicineTaxonomy 2081P2900X
2155 E PARIS AVE SE STE 220, Grand Rapids, MI 49546
Open in Google Maps ↗

Secondary Practice Locations 2

Location 15005 Cascade Rd SE Ste BGrand Rapids, MI 49546-8411 · Phone (616) 325-1237 · Fax (616) 333-7233
Location 23299 N Wellness Dr Ste 230Holland, MI 49424-7271 · Phone (616) 325-1230 · Fax (616) 325-1232

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 23D2332260

Exponential Health, PC · Grand Rapids, MI
Active · expires Oct 15, 2027
CLIA Number23D2332260
Laboratory TypePhysician Office
Certificate Effective DateOctober 16, 2025
Certificate Expiration DateOctober 15, 2027
Laboratory DirectorWilliam H. Baer
Laboratory Phone(616) 548-6161
Laboratory LocationExponential Health, PC2155 E Paris SE Suite 220, Grand Rapids, MI 49546
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GERALD SCOTT WITHERELL MD
Family Medicine
2155 E PARIS AVE SE STE 220
GRAND RAPIDS, MI 49546
Kent County (616) 685-3100
EXPONENTIAL HEALTH PHARMACY
Pharmacy (Community/Retail Pharmacy)
2155 E PARIS AVE SE STE 220
GRAND RAPIDS, MI 49546
Kent County (616) 548-6161
BRITTANY PALAZZOLO FNP-BC
Nurse Practitioner
2155 E PARIS AVE SE STE 220
GRAND RAPIDS, MI 49546
Kent County (616) 548-6161
DR. JORDAN CANTOR DO
Internal Medicine
2155 E PARIS AVE SE STE 220
GRAND RAPIDS, MI 49546
Kent County (616) 548-6161

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Exponential Health,pc's NPI number?

The NPI number for Exponential Health,pc is 1316814668. It was assigned to this organization in the NPPES registry on October 21, 2025.

Where is Exponential Health,pc located?

Exponential Health,pc is located at 2155 E Paris Ave SE Ste 220, Grand Rapids, MI 49546. The listed phone number is (616) 548-6161.

What is Exponential Health,pc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Does Exponential Health,pc hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 23D2332260) is associated with this NPI, valid through October 15, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Exponential Health,pc was last updated on October 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.