Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARK EDWARD KOONMEN DDS
NPI 1326028044
Dentist - Pediatric Dentistry in Flint, MI

Q: What is Mark Koonmen's NPI number?

The NPI number for Mark Koonmen is 1326028044. It was assigned to this individual provider in the NPPES registry on January 19, 2006.

Q: What is Mark Koonmen's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Pediatric Dentistry, with taxonomy code 1223P0221X.

Q: When was this NPI record last updated?

The NPPES record for Mark Koonmen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days 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.

Active since January 19, 2006

1122 S LINDEN RD, FLINT, MI 48532(810) 732-0640(810) 732-2264 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Mark Edward Koonmen Dds NPPES

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

DR. MARK EDWARD KOONMEN DDS (NPI 1326028044) is an individual pediatric dentistry provider in Flint, Michigan, licensed in Michigan (13770) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1326028044

Entity TypeIndividualMale

Primary Taxonomy1223P0221X

Provider Legal NameDR. MARK EDWARD KOONMENCredential: DDS

Location Address1122 S LINDEN RDFlint, MI 48532-3437

Mailing Address1122 S Linden RdFlint, MI 48532-3437 · (810) 732-0640 · Fax (810) 732-2264

Phone(810) 732-0640

Fax(810) 732-2264

Sole ProprietorNo

Enumeration DateJanuary 19, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1326028044 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · Pediatric DentistryDental Providers

Taxonomy Code1223P0221X

License✔ Licensed in MI · 13770

Definition

An age-defined specialty that provides both primary and comprehensive preventive and therapeutic oral health care for infants and children through adolescence, including those with special health care needs.

1122 S LINDEN RD, Flint, MI 48532

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Other Identifiers 2

OtherJ801645MI · Blue Cross And Blue Shiel

Medicaid1831730MI

Other Providers at the Same Location NPPES 3

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

TERENCE CHAN, DDS, MSD, PC

Clinic/Center (Dental)

1122 S LINDEN RD
FLINT, MI 48532

Genesee County (810) 732-0640

MARK E. KOONMEN, DDS, MS, PC

Dentist (Pediatric Dentistry)

1122 S LINDEN RD
FLINT, MI 48532

Genesee County (810) 732-0640

TERENCE CHAN DDS

Dentist (Pediatric Dentistry)

1122 S LINDEN RD, BUILDING E
FLINT, MI 48532

Genesee County (810) 732-0640

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 Mark Koonmen's NPI number?

The NPI number for Mark Koonmen is 1326028044. It was assigned to this individual provider in the NPPES registry on January 19, 2006.

Where is Mark Koonmen located?

Mark Koonmen practices at 1122 S Linden Rd, Flint, MI 48532. The listed phone number is (810) 732-0640.

What is Mark Koonmen's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Pediatric Dentistry, with taxonomy code 1223P0221X.

When was this NPI record last updated?

The NPPES record for Mark Koonmen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days 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.