Arthur Decillis, M.D.
Internal Medicine Physician · Madison, CT
Arthur Decillis, M.D. is an internal medicine physician with a practice address in Madison, Connecticut, and NPI 1215202056, issued on Mar 13, 2012. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Arthur Decillis
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101038905 VA
Self-reported in NPPES; status is on the state search - Practice location
- 80 Devonshire LN, Madison, CT 06443
- Phone
- (203) 421-0274
- Enumerated
- Mar 13, 2012
- Record last updated
- Mar 13, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Verify Arthur Decillis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck 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: $281,287.70
12 payments; by number, the most common kind was consulting fee; the largest payer was Alnylam Pharmaceuticals 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.
Arthur Decillis among 2,623 internal medicine physician records in Connecticut
Arthur Decillis, M.D. 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 2012, is newer than 67% of them.
- NPI issued2012 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2012 · 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).
6 internal medicine physician records list a practice address in Madison
They are 6 of the 371 NPPES records with a practice address in Madison, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Madison → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Elin Christensen, M.D.Madison, CT 064431356534457
- Serle Epstein, M.D.Madison, CT 064431912991175
- Elizabeth Laberee, MDMadison, CT 064431972920114
- Susan O'Malley, M.D.Madison, CT 064431336586502
- Keiren Smith, M.D.Madison, CT 064431366764680
- Richard Wein, MDWallingford, CT 064421255341319
- Walter Martin, M.D.Higganum, CT 064411619944600
- Edward Dill, M.D.Guilford, CT 064371700886587
Common questions
What is Arthur Decillis, M.D.'s NPI number?
Arthur Decillis, M.D.'s National Provider Identifier (NPI) is 1215202056, issued on Mar 13, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Arthur Decillis, M.D. located?
The NPPES record lists a practice address at 80 Devonshire LN, Madison, CT, 06443. Phone: (203) 421-0274. Providers update this record themselves, so call before visiting.
How can I verify Arthur Decillis, M.D.'s license?
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.
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.