Dr. Margo Kathryn Nagel , DDS
Dentist β’ Boulder, CO
1610 Canyon Blvd
Boulder, CO 803025407
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
1610 Canyon Blvd
Boulder, CO 803025407
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Denver, CO. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Dentist: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2025
All general payments: $44.74 across 2 records.
By nature of payment
- Food and Beverage: $44.74 across 2 records.
Reporting-company totals
- Dentsply Sirona Inc: $44.74 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2018
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, βDoes your provider accept Medicare as full payment?β
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.
Compared with the same specialty in Boulder and Colorado
41 active clinicians are listed under Dentist with a practice address in Boulder, CO (2,024 in Colorado).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Boulder
0% of these 41 clinicians have the CMS telehealth indicator.
0% of these 41 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $19.65 in 2023 to $44.74 in 2025.
- 2023: $19.65
- 2025: $44.74
Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· 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
Program year 2025 (payments made January 1 β December 31, 2025): fewer than 11 records totaling $44.74.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
|
ASTRA TECH Implant System | General | $30.86 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
|
CAVITRON | General | $13.88 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 122300000X
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Secondary Practice Locations
301 W 6th Ave
Denver, CO 802045182
Phone: 3034366000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dentist - General Practice
Doctor of Dental Surgery
Dentist - General Practice
Doctor of Dental Surgery
Dentist - General Practice
Dentist - General Practice
Doctor of Dental Medicine
Dentist - General Practice
Doctor of Dental Surgery
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1610 CANYON BLVD, BOULDER, CO 803025407 (Tel: 3034425000)
Registered at 175 E 7TH AVE APT 617, DENVER, CO 802033456
Recorded as MARGO NAGEL, DDS
NPI status registered as active in NPPES database
Registered at 301 W 6TH AVE, DENVER, CO 802045182 (Tel: 3034366000)
Registered at 3000 FALLS RD APT 413, BALTIMORE, MD 212112479
Recorded as MARGO RUBIN, DDS
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dentists in Boulder
- Dr. Carmen Burke, DDS
- Dr. Jonathan Smith, DDS
- Dr. Shraddha Kulkarni, DMD
- Dr. Ted Kawulok, DDS
- Dr. Brett Broda, DDS
- Dr. Brett Amedro, DDS
Mailing Address
175 E 7th Ave Apt 617
Denver, CO 802033456