Dr. Michael A. Kilgannon, MD
- Medicare services, 2023
- 90
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 2,609
- MIPS score, 2024
- 90
- Industry payments
- $32
- Practice address
- 1703 Main St, Willimantic, CT 06226
- Practice phone
- Call (860) 456-1252
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hartford Healthcare Medical Group Specialists - Willimantic (Main St)
Multi-specialty group site · Willimantic, Connecticut
Find Dr. Kilgannon's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael A. Kilgannon is an internist in Wethersfield, Connecticut
Dr. Kilgannon practices at Hartford Healthcare Medical Group Specialists - Willimantic (Main St) in Willimantic, Connecticut.
Dr. Kilgannon's NPI, 1164483947, was assigned on March 31, 2006. Dr. Kilgannon graduated from University of Vermont College of Medicine in 1981. Dr. Kilgannon holds Connecticut license 025777.
- NPI
- 1164483947NPI Registry (opens in a new tab)
- NPI enumeration date
- March 31, 2006
- NPI status
- Active
- Practice phone
- (860) 456-1252
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael A. Kilgannon practices in Willimantic and Wethersfield
Dr. Kilgannon's primary practice is Hartford Healthcare Medical Group Specialists - Willimantic (Main St), at 1703 Main St, Willimantic, CT 06226. The practice phone is (860) 456-1252. The NPI Registry lists Dr. Kilgannon's practice address as 1290 Silas Deane Hwy, Wethersfield, CT 06109.
- Hartford Healthcare Medical Group Specialists - Willimantic (Main St)Primary1703 Main St, Willimantic, CT 06226Phone(860) 456-1252
- NPI Registry address1290 Silas Deane Hwy, Wethersfield, CT 06109 · Capitol CountyPhone(860) 456-1252
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Michael A. Kilgannon is affiliated with 1 site of care and 2 medical groups
Dr. Kilgannon's primary practice is Hartford Healthcare Medical Group Specialists - Willimantic (Main St) in Willimantic, Connecticut. The medical group on file is Hartford HealthCare Medical Group Specialists. Dmand AI also links Dr. Kilgannon to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Michael A. Kilgannon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kilgannon practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hartford Healthcare Medical Group Specialists - Willimantic (Main St) | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael A. Kilgannon is one of 2,189 internists in Connecticut
Internal medicine is Dr. Kilgannon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kilgannon is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Internists near Dr. Kilgannon
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael A. Kilgannon billed Medicare for 90 services in 2023
CMS data shows 90 Medicare services from Dr. Kilgannon across 2 procedure codes in 2023, for 11 Medicare patients. Medicare paid $11,327 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kilgannon's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1182023: 9024%
Dr. Kilgannon compared with the Connecticut median for internists, 2023
- Dr. Kilgannon
- Connecticut median
- Medicare services
- 90vs 39077% below
- Medicare patients
- 11vs 17294% below
- Part D claims
- 2,370vs 3436.9 times
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Kilgannon's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kilgannon and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael A. Kilgannon treated 11 Medicare patients in 2024, average age 76
CMS counts 11 Medicare patients who saw Dr. Kilgannon in 2024. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kilgannon's median patient age at 67, with 60% women.
Dr. Kilgannon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael A. Kilgannon wrote 2,609 Medicare Part D claims in 2024
In 2024, Dr. Kilgannon wrote 2,609 Medicare Part D claims for 78 patients. 84% of them were for generic drugs. CMS names the drug for 2,370 of them, across 65 drugs with 11 or more claims each, at $155,801 in total drug cost. In 2023, CMS named 6,455 claims across 132 drugs.
Dr. Kilgannon's Part D claims by kind of drug, 2024
- Generic2,193 claims84%
- Brand-name389 claims15%
- Other27 claims1%
Dr. Kilgannon's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Kilgannon's Part D claims, 2024
- Antibiotics1%32 of 2,609 claims
- Antipsychotics, patients 65 and over3%67 of 2,609 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6,4552024: 2,37063%
Drugs named by CMS: 65 in 2024, 132 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Michael A. Kilgannon scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Kilgannon for performance year 2024, reported as part of a group.
Dr. Kilgannon's MIPS scores, performance year 2024
- 90of 100Final score
- 83.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Michael A. Kilgannon received $32 in industry payments from 2018 to 2019
CMS Open Payments shows 2 general payments to Dr. Kilgannon from 1 drug or device company from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $32.
General payments to Dr. Kilgannon by program year, 2018 to 2019
Companies that paid Dr. Kilgannon the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael A. Kilgannon graduated from University of Vermont College of Medicine
Dr. Kilgannon graduated from University of Vermont College of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael A. Kilgannon's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael A. Kilgannon
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael A. Kilgannon's NPI number?
Dr. Michael A. Kilgannon's NPI number is 1164483947. It was assigned on March 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael A. Kilgannon?
Dr. Michael A. Kilgannon is an internist in Wethersfield, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael A. Kilgannon practice?
Dr. Kilgannon practices at 1703 Main St, Willimantic, CT 06226. Dr. Kilgannon also practices at 1290 Silas Deane Hwy, Wethersfield, CT 06109. Dr. Kilgannon's primary practice is Hartford Healthcare Medical Group Specialists - Willimantic (Main St) in Willimantic, Connecticut. Dmand AI also links Dr. Kilgannon to 1 medical group.
What is Dr. Michael A. Kilgannon's office phone number?
The practice phone on file for Dr. Kilgannon is (860) 456-1252.
What is Dr. Michael A. Kilgannon's medical license number?
Dr. Kilgannon holds Connecticut license 025777.
What medical group is Dr. Michael A. Kilgannon part of?
Dr. Kilgannon is linked to Hartford HealthCare Medical Group Specialists. Dmand AI links Dr. Kilgannon to 1 more medical group.
Does Dr. Michael A. Kilgannon accept Medicare?
Yes. CMS data shows Dr. Kilgannon billed Medicare for 90 services in 2023.
What is Dr. Michael A. Kilgannon's MIPS score?
Dr. Kilgannon's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
How many Medicare patients does Dr. Michael A. Kilgannon see?
CMS counts 11 Medicare patients who saw Dr. Kilgannon in 2024, with an average age of 76.
What services does Dr. Michael A. Kilgannon bill to Medicare?
In 2023, Dr. Kilgannon's most billed Medicare services were nursing facility care (99306) and nursing facility care (99309).
Show 4 more questionsShow fewer questions
Where did Dr. Michael A. Kilgannon go to medical school?
Dr. Kilgannon graduated from University of Vermont College of Medicine in 1981.
What drugs does Dr. Michael A. Kilgannon prescribe most?
In 2024 Medicare Part D data, Dr. Kilgannon's most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Escitalopram Oxalate.
Has Dr. Michael A. Kilgannon received payments from drug or device companies?
CMS Open Payments shows $32 in general payments to Dr. Kilgannon from 1 company from 2018 to 2019. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Michael A. Kilgannon been practicing?
Dr. Kilgannon graduated from medical school in 1981, 45 years ago.
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