Tom G. Matzakos, MD
Gastroenterology Physician · Lone Tree, CO
Tom G. Matzakos, MD is a gastroenterology physician with a practice address in Lone Tree, Colorado, and NPI 1619004629, issued on Feb 27, 2007. Check the license (Colorado 42182, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Tom G. Matzakos
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 42182 CO
Self-reported in NPPES; status is on the state search - Practice location
- 10240 Park Meadows Dr, Lone Tree, CO 80124
- Phone
- (303) 338-4545
- Enumerated
- Feb 27, 2007
- Record last updated
- Jun 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 22104712 CO
- Medicare enrollment
- Enrolled (PECOS I20040721000825); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 1998
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 334 in Colorado → Look up another NPI →
Also registered at 10240 Park Meadows Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicole Adams, NPAcute Care Nurse Practitioner1770711749
- Angela Allen, AU.DAudiologist1649307653
- Sara Alley, AU.DAudiologist1720104342
- Scott Andersen, MDDiagnostic Radiology Physician1851376347
- Mei Ling Anderson, RNRegistered Nurse1043194558
- Bradley Andrews, MDOtolaryngology Physician1891822896
Verify Tom G. Matzakos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 42182Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average gastroenterology physician in 2024
831 Medicare Part D claims for 496 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Gavilyte-C375 claims
- Omeprazole172 claims
- Pantoprazole Sodium54 claims
- Budesonide Dr38 claims
- Mesalamine32 claims
- Azathioprine26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Colorado Permanente Medical Group PCDenver, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tom G. Matzakos among 334 gastroenterology physician records in Colorado
Tom G. Matzakos, MD is one of 334 gastroenterology physician records with a practice address in Colorado. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 37% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1998 · median 2003 among the 258 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 gastroenterology physician records list a practice address in Lone Tree
They are 25 of the 1,405 NPPES records with a practice address in Lone Tree, and 334 gastroenterology physician records in Colorado.
All 334 in Colorado → Every provider in Lone Tree → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Vaman Jakribettuu, MDLone Tree, CO 801241487696043
- Geoffrey Jensen, MDLone Tree, CO 801241518013143
- Lawrence Kim, M.DLone Tree, CO 801241275647414
- Hanna Kraus, MDLone Tree, CO 801241659392793
- Louis Morris, MDLone Tree, CO 801241407990294
- Matthew Nichols, M.DLone Tree, CO 801241952451379
- Cary Patt, M.DLone Tree, CO 801241801900048
- Erik Pieramici, M.DLone Tree, CO 801241710091954
Common questions
What is Tom G. Matzakos, MD's NPI number?
Tom G. Matzakos, MD's National Provider Identifier (NPI) is 1619004629, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tom G. Matzakos, MD located?
The NPPES record lists a practice address at 10240 Park Meadows Dr, Lone Tree, CO, 80124. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Tom G. Matzakos, MD's license?
NPPES lists Colorado license number 42182, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tom G. Matzakos, MD prescribe under Medicare Part D?
In 2024, Tom G. Matzakos, MD had 831 Medicare Part D claims for 496 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions 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.