Matthew F. Colliton, MD
Internal Medicine Physician · West Hartford, CT
Matthew F. Colliton, MD is an internal medicine physician with a practice address in West Hartford, Connecticut, and NPI 1609853126, issued on Dec 27, 2005. Check the license (Connecticut 029475, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Matthew F. Colliton
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 029475 CT
Self-reported in NPPES; status is on the state search - Practice location
- 20 Isham RD, West Hartford, CT 06107
- Phone
- (860) 527-1669
- Enumerated
- Dec 27, 2005
- Record last updated
- Jun 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (860) 293-0783
- Medicaid ID
- 1294751 CT
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 20 Isham RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Philip Karanian, MDInternal Medicine Physician1437136132
- Lisa Knoll, APRNPrimary Care Nurse Practitioner1740766500
- Rolf Knoll, MDInternal Medicine Physician1881696193
- Gregory Walsh, MDInternal Medicine Physician1063496883
Verify Matthew F. Colliton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 029475Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average internal medicine physician in 2024
3,960 Medicare Part D claims for 440 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium355 claims
- Amlodipine Besylate163 claims
- Levothyroxine Sodium145 claims
- Trazodone Hcl135 claims
- Eliquis111 claims
- Lisinopril108 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.
Industry payments in 2024: $43.90
2 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Matthew F. Colliton among 2,623 internal medicine physician records in Connecticut
Matthew F. Colliton, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
51 internal medicine physician records list a practice address in West Hartford
They are 51 of the 1,653 NPPES records with a practice address in West Hartford, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in West Hartford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sally Ardolino, MDWest Hartford, CT 061071376569392
- Anthony Ardolino, MDWest Hartford, CT 061071386658276
- Philip Karanian, MDWest Hartford, CT 061071437136132
- Rolf Knoll, MDWest Hartford, CT 061071881696193
- John Papandrea, MDWest Hartford, CT 061071083638837
- Julian Parsons, M.D.West Hartford, CT 061071639111008
- Mark Polatnick, M.D.West Hartford, CT 061071376562090
- Maria Quinones, M.DWest Hartford, CT 061071164567434
Common questions
What is Matthew F. Colliton, MD's NPI number?
Matthew F. Colliton, MD's National Provider Identifier (NPI) is 1609853126, issued on Dec 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Matthew F. Colliton, MD located?
The NPPES record lists a practice address at 20 Isham RD, West Hartford, CT, 06107. Phone: (860) 527-1669. Providers update this record themselves, so call before visiting.
How can I verify Matthew F. Colliton, MD's license?
NPPES lists Connecticut license number 029475, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Matthew F. Colliton, MD prescribe under Medicare Part D?
In 2024, Matthew F. Colliton, MD had 3,960 Medicare Part D claims for 440 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.