1. Home
  2. Directory
  3. Wisconsin
  4. Milwaukee
  5. Dentist
  6. NPI Profile

DR. JAMES SCOTT MARKENSON DDS
NPI 1457536815
Dentist - General Practice in Milwaukee, WI

Active since January 04, 2008
7725 N PORT WASHINGTON RD, MILWAUKEE, WI 53217(414) 351-6300 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. James Scott Markenson Dds NPPES

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

DR. JAMES SCOTT MARKENSON DDS (NPI 1457536815) is an individual general practice provider in Milwaukee, Wisconsin, licensed in Wisconsin (3132-15) and active in the NPI registry since January 2008.

NPPES Registry Identity

NPI1457536815
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. JAMES SCOTT MARKENSONCredential: DDS
Location Address7725 N PORT WASHINGTON RDMilwaukee, WI 53217-3130
Mailing Address7725 N Port Washington RdMilwaukee, WI 53217-3130 · (414) 351-6300
Phone(414) 351-6300
Sole ProprietorNo
Enumeration DateJanuary 4, 2008
Last NPPES UpdateFebruary 4, 2026
NPPES CertifiedFebruary 4, 2026
✔ NPI 1457536815 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in WI · 3132-15
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
7725 N PORT WASHINGTON RD, Milwaukee, WI 53217
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and more.Insurance ›

Other Providers at the Same Location NPPES 2

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

ZACHARY WEHNER DDS
Dentist (General Practice)
7725 N PORT WASHINGTON RD
MILWAUKEE, WI 53217
Milwaukee County (414) 351-6300
PORT ROAD DENTAL LLC
Dentist (General Practice)
7725 N PORT WASHINGTON RD
GLENDALE, WI 53217
Milwaukee County (414) 202-5215

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 James Markenson's NPI number?

The NPI number for James Markenson is 1457536815. It was assigned to this individual provider in the NPPES registry on January 4, 2008.

Where is James Markenson located?

James Markenson practices at 7725 N Port Washington Rd, Milwaukee, WI 53217. The listed phone number is (414) 351-6300.

What is James Markenson's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

What insurance does James Markenson accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas, Delta Dental of Wisconsin, Inc. and Humana list James Markenson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for James Markenson was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.