OrthodontistIndex

Zenith City Orthodontics PLLC

Orthodontic practice in Duluth, MN

Registered orthodontist

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Public-record details

Address
1901 South St Ste 2, Duluth, MN 55812
Phone
(218) 727-3789
Listed under
Orthodontic practices
NPI
1679121511
NPI status
Active in the NPPES registry
Provider type
Organization (practice, clinic or company)
Registered specialty (self-reported taxonomy)
Orthodontics and Dentofacial Orthopedics (1223X0400X)
Authorized official
Christine Hammer, DDS, MS, Orthodontist/owner
NPI first issued
Sep 3, 2019
NPI record last updated
Sep 3, 2019

NPI 1679121511 is active in the federal NPPES registry (CMS) with Orthodontics and Dentofacial Orthopedics, an ADA-recognized dental specialty, as its primary taxonomy. Source: NPPES NPI Registry (CMS) (record). Data as of 2026-09-30.

What these registry facts mean

The NPI (National Provider Identifier) is the federal ID every HIPAA-covered provider uses to bill insurance. This NPI belongs to an organization, so it may cover several clinicians at this location. The specialty is the taxonomy the provider chose when registering; NPPES does not check it. A license number here is what the provider entered — confirm it with the state board before you rely on it. Orthodontists are dentists who completed an accredited orthodontic residency after dental school. General dentists can also offer braces or aligners, but they are not listed here.

View NPI 1679121511 in the official registry ↗

Checking credentials: the specialty shown is the one this provider registered with the NPI system. Your state dental board's license lookup confirms the license, and the American Board of Orthodontics lists board-certified orthodontists.

Other orthodontists in Duluth

Brian Landrigan, DDS, MS3617 W Arrowhead Rd, Suite 200 · Duluth, MN 55811 · (218) 722-4484 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (MN)Jacob Schroeder1901 South St Ste 2 · Duluth, MN 55812 · (218) 727-3789 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (MN)Melanie Bluth, DDS3617 W Arrowhead Rd · Duluth, MN 55811 · (218) 722-4484 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (MN)Nathaniel Caple, DDS1901 South St Ste 2 · Duluth, MN 55812 · (218) 727-3789 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (MN)Christine Hammer DDS Ms PA17 West Central Entrance · Duluth, MN 55811 · (218) 349-9546 · Orthodontic practicesRegistered specialty: Orthodontics · PracticeRegistered orthodontistChristine Hammer, DDS, MS9 Eastridge Blvd · Duluth, MN 55804 · (218) 349-9546 · Individual orthodontistsRegistered specialty: OrthodonticsRegistered orthodontistLicense # listed (MN)Op Orthodontics of Minnesota PLLC1901 South St Ste 2 · Duluth, MN 55812 · (218) 460-5417 · Orthodontic practicesRegistered specialty: Orthodontics · PracticeRegistered orthodontistArrowhead Orthodontics PC3617 W Arrowhead Rd, Suite 200 · Duluth, MN 55811 · (218) 722-4484 · Orthodontic practicesRegistered specialty: Orthodontics · PracticeRegistered orthodontistLicense # listed (MN)

All 13 in Duluth →