William J. Duggan, M.D.
Anesthesiology Physician · East Hartford, CT
William J. Duggan, M.D. is an anesthesiology physician with a practice address in East Hartford, Connecticut, and NPI 1255310488, issued on Jan 16, 2006. Check the license (Connecticut 031333, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William J. Duggan
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 031333 CT
Self-reported in NPPES; status is on the state search - Practice location
- 111 Founders Plz, East Hartford, CT 06108
- Phone
- (860) 282-4137
- Enumerated
- Jan 16, 2006
- Record last updated
- Mar 5, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (860) 282-0170
- Medicaid ID
- 001313337 CT
- Medicare enrollment
- Enrolled (PECOS I20070915000091); accepts Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 797 in Connecticut → Look up another NPI →
Also registered at 111 Founders Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Anderson, APRN, CRNACertified Registered Nurse Anesthetist1093782526
- Barbara Arcarese, D.OAnatomic Pathology Physician1659514628
- Andrew Baxter, M.D.Anesthesiology Physician1851385173
- Elizabeth Beatson, APRN, CRNACertified Registered Nurse Anesthetist1528035052
- Vincent Brunelli, APRN CRNACertified Registered Nurse Anesthetist1053389346
- Frederick Bunke, M.D.Anesthesiology Physician1548240385
Verify William J. Duggan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 031333Check 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: $28.64
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 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.
Bills Medicare through one group practice
- Integrated Anesthesia Associates LLCHartford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William J. Duggan among 797 anesthesiology physician records in Connecticut
William J. Duggan, M.D. is one of 797 anesthesiology physician records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 54% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1987 · median 2006 among the 550 with a school on file
- Record last updated2014 · 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 207L00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
62 anesthesiology physician records list a practice address in East Hartford
They are 62 of the 976 NPPES records with a practice address in East Hartford, and 797 anesthesiology physician records in Connecticut.
All 797 in Connecticut → Every provider in East Hartford → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- William Ahn, M.D.East Hartford, CT 061081568460418
- William Ceruzzi, M.D.East Hartford, CT 061081144229808
- Won Ju, M.D.East Hartford, CT 061081629078282
- Leroy Krumperman, M.D.East Hartford, CT 061081659372126
- Leonard Kulicki, M.D.East Hartford, CT 061081114926078
- Michael McCormick, M.D.East Hartford, CT 061081548252778
- Robert Miller, M.D.East Hartford, CT 061081508866823
- Robin Roman, M.D.East Hartford, CT 061081831181007
Common questions
What is William J. Duggan, M.D.'s NPI number?
William J. Duggan, M.D.'s National Provider Identifier (NPI) is 1255310488, issued on Jan 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William J. Duggan, M.D. located?
The NPPES record lists a practice address at 111 Founders Plz, East Hartford, CT, 06108. Phone: (860) 282-4137. Providers update this record themselves, so call before visiting.
How can I verify William J. Duggan, M.D.'s license?
NPPES lists Connecticut license number 031333, 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.
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.