Mark A. Greenburg, DDS, MS
Orthodontics and Dentofacial Orthopedics Dentistry · Longmont, CO
Mark A. Greenburg, DDS, MS is an orthodontics and dentofacial orthopedics dentistry with a practice address in Longmont, Colorado, and NPI 1932626447, issued on Aug 25, 2017. Check the license (Colorado 204828, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark A. Greenburg
- Credential
- DDS, MS
- Primary taxonomy
- Orthodontics and Dentofacial Orthopedics Dentistry 1223X0400X
- License number
- 204828 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1739 Main St, Longmont, CO 80501
- Phone
- (303) 834-6400
- Enumerated
- Aug 25, 2017
- Record last updated
- Feb 26, 2026
- Entity
- Type 1 · individual
8 nearest orthodontics and dentofacial orthopedics dentistry records → All 328 in Colorado → Look up another NPI →
Also registered at 1739 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julie Devlin, DDSDentist1417006875
- Monica Montoya, DDSGeneral Practice Dentistry1700372885
- Anne-Marie Palmer, O.DOptometrist1326398967
Verify Mark A. Greenburg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 204828Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $46.50
3 payments; by number, the most common kind was food and beverage; the largest payer was American Orthodontics Corporation. The 7,622 providers of this specialty with any payment received $1,641.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mark A. Greenburg among 328 orthodontics and dentofacial orthopedics dentistry records in Colorado
Mark A. Greenburg, DDS, MS is one of 328 orthodontics and dentofacial orthopedics dentistry records with a practice address in Colorado. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 84% of them.
- NPI issued2017 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223X0400X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthodontics and Dentofacial Orthopedics Dentistry providers in Colorado
There are 328 orthodontics and dentofacial orthopedics dentistry records in Colorado.
All 328 in Colorado → Every provider in Longmont → Orthodontics and Dentofacial Orthopedics Dentistry nationwide →
The 8 orthodontics and dentofacial orthopedics dentistry records with the nearest ZIP codes
- F Richard Beckwith, DDS, MSLongmont, CO 805011780613778
- Laurel Leslie-Martin, D.D.S., M.S.Longmont, CO 805011043454317
- Richard McManaman, D.D.S., M.S.Longmont, CO 805011063570760
- Stephanie RossLongmont, CO 805011568797256
- Melissa Venrick, DDSLongmont, CO 805011417095894
- Logan SmithFrederick, CO 805041356151757
- Cory Coombs, D.M.D.Steamboat Springs, CO 804871992909618
- Haylee Griffin, DMDSteamboat Springs, CO 804871609317833
Common questions
What is Mark A. Greenburg, DDS, MS's NPI number?
Mark A. Greenburg, DDS, MS's National Provider Identifier (NPI) is 1932626447, issued on Aug 25, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Greenburg, DDS, MS located?
The NPPES record lists a practice address at 1739 Main St, Longmont, CO, 80501. Phone: (303) 834-6400. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Greenburg, DDS, MS's license?
NPPES lists Colorado license number 204828, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.