Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Robert J Mohs , DDS

Dentist - General Practice • Duluth, MN

Active NPI 1093899809 Individual Practitioner Male Practitioner
Practice location in NPPES

421 E 4th St
Duluth, MN 558051935

Call 2187271448 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

421 E 4th St

Duluth, MN 558051935

Telephone 2187271448
Fax 2187270408
Organization at the Same NPPES Address or Phone
Chart And Mohs Dentistry P.a. Facility NPI 1326214164

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

What Public CMS Data Show

Dentist - General Practice: NPPES taxonomy is a reported classification, not proof of board certification.

Open Payments general payments, program year 2019

All general payments: $36.15 across 2 records.

By nature of payment

  • Food and Beverage: $36.15 across 2 records.

Reporting-company totals

  • Dentsply Sirona Inc: $36.15 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2019 (published June 30, 2026).

Guide: How to read an Open Payments record

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in Duluth and Minnesota

55 active clinicians are listed under Dentist - General Practice with a practice address in Duluth, MN (2,178 in Minnesota).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Duluth

0% of these 55 clinicians have the CMS telehealth indicator.

0% of these 55 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Open Payments (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2019

Program year 2019 (payments made January 1 – December 31, 2019): fewer than 11 records totaling $36.15.

Manufacturer Payment Nature Product Type Amount ($)
Dentsply Sirona Inc
Food and Beverage
In-kind items and services
SureSmile Aligners General $18.53
Dentsply Sirona Inc
Food and Beverage
In-kind items and services
SureSmile Aligners General $17.62

Source: CMS Open Payments, program year 2019, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Dentist - General Practice Primary Specialty

NUCC Taxonomy Code: 1223G0001X

License # reported to NPPES MN 8124

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Minnesota Board of Medical Practice.
Look Up on State Board Site

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

1 listed
NPI 1194020719

Doctor of Dental Surgery

Career & Practice History

NPI enumerated October 25, 2006.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1093899809
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 25, 2006
Last Update: July 08, 2007
Sole Proprietor: Yes

Other Dentist - General Practices in Duluth

All Dentist - General Practices in Duluth

Mailing Address

421 E 4th St

Duluth, MN 558051935

Phone: 2187271448

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.