Michael J. Hernon

  • Hartford, CT
  • Colorectal surgeon
NPI1700171659PAC ID9537465976
Medicare services, 2024
135
Medicare patients, 2024
124
Part D claims, 2024
75
Publications
1
MIPS score, 2024
90
Practice address
80 Seymour Street, Hartford, CT 06102
Practice phone
Call (860) 545-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Hartford Hospital

Hospital · Hartford, Connecticut

See all 4 affiliations

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Michael J. Hernon is a colorectal surgeon in Hartford, Connecticut

Michael Hernon practices at Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare.

Michael Hernon's NPI, 1700171659, was assigned on June 17, 2011. Michael Hernon graduated from University of Massachusetts Medical School in 2011. Michael Hernon holds Connecticut license 55868.

NPI and contact details
Medicare PAC ID
9537465976
NPI enumeration date
June 17, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(860) 545-5000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
41
Medical school graduation
2011

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Michael J. Hernon practices at Hartford Hospital in Hartford, Connecticut

Michael Hernon's primary practice is Hartford Hospital, at 80 Seymour Street, Hartford, CT 06102 in Hartford County. The practice phone is (860) 545-5000.

  • Hartford Hospital
    80 Seymour Street, Hartford, CT 06102 · Hartford CountyPhone(860) 545-5000

Source: Dmand AI Affiliation Data

Michael J. Hernon is affiliated with 2 sites of care and 2 medical groups

Michael Hernon's primary practice is Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare. The medical group on file is Hartford HealthCare Medical Group Specialists. Dmand AI also links Michael Hernon to 1 more hospital and 1 medical group, each named with a free account.

See all 4 affiliations for Michael Hernon

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Michael J. Hernon's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Michael Hernon practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Hartford HospitalAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Michael J. Hernon is one of 47 colorectal surgeons in Connecticut

Colon and rectal surgery is Michael Hernon's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Michael Hernon is licensed in Connecticut.

Specialties and state licenses

  • Colon and rectal surgery, ConnecticutPrimaryLicense 55868 · taxonomy 208C00000X

Colorectal surgeons near Michael Hernon

Counts of colorectal surgeons 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

Michael J. Hernon billed Medicare for 135 services in 2024

CMS data shows 135 Medicare services from Michael Hernon across 7 procedure codes in 2024, for 124 Medicare patients. Medicare paid $9,289 for them.

Medicare services, 2024135
Medicare patients124
Paid by Medicare$9,289
Procedure codes7

Michael Hernon's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 902024: 12337%
Surgery
2023: 02024: 12

Where Michael Hernon's Medicare services took place, 2024

  • In an office5339%
  • In a facility8261%

Michael Hernon compared with the Connecticut median for colorectal surgeons, 2024

  • Michael Hernon
  • Connecticut median
Medicare services
135vs 15513% below
Medicare patients
124vs 124Close to median
Part D claims
64vs 7110% below

Medians across 47 colorectal surgeons in Connecticut with Dmand AI profiles that report each measure.

Michael Hernon's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Michael Hernon

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Medicare shows one payer. Book a meeting to get commercial claims data for Michael Hernon and other colorectal surgeons in Connecticut.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Michael J. Hernon treated 124 Medicare patients in 2024, average age 72

CMS counts 124 Medicare patients who saw Michael Hernon in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 1.52, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Michael Hernon's median patient age at 56, with 44% women.

Medicare patients, 2024124
Average age72
Average risk score1.52
Also on Medicaid37%

Michael Hernon's Medicare patients by age, 2024

Michael Hernon's Medicare patients by sex, 2024

  • Women5847%
  • Men6653%

Chronic conditions among Michael Hernon's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis44%
  4. Anxiety39%
  5. Mood disorders31%
  6. Ischemic heart disease30%
  7. Atrial fibrillation29%
  8. Diabetes29%

Share of Medicare patients with each condition. A patient can have several.

Michael Hernon's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women44%
  • Men55%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Michael J. Hernon wrote 75 Medicare Part D claims in 2024

In 2024, Michael Hernon wrote 75 Medicare Part D claims for 47 patients. 100% of them were for generic drugs. CMS names the drug for 64 of them, across 3 drugs with 11 or more claims each, at $366 in total drug cost. In 2023, CMS named 54 claims across 3 drugs.

Part D claims, 202475
Drugs named by CMS3
Total drug cost$366
Part D patients47

Michael Hernon'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 Michael Hernon's Part D claims, 2024

  • Antibiotics59%44 of 75 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: 542024: 6419%

Drugs named by CMS: 3 in 2024, 3 in 2023.

See all prescribing by Michael Hernon

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

Michael J. Hernon 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 Michael Hernon for performance year 2024, reported as part of a group. Michael Hernon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 24 procedures of colonoscopy by Michael Hernon, more than 50% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Michael Hernon'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.

Where Michael Hernon ranks in Medicare procedure volume

Colonoscopy
50th percentile24 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Michael J. Hernon has 1 publication on record

Dmand AI links 1 paper to Michael Hernon in 2017.

Papers1

Recent publications by Michael Hernon

See all 1 publications and co-authors

See who Michael Hernon researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Michael Hernon works with, so you can find a warm path to the right colorectal surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Michael J. Hernon received $1,583 in industry payments from 2019 to 2025

CMS Open Payments shows 12 general payments to Michael Hernon from 5 drug and device companies from 2019 to 2025. Education make up the largest share, 65% of the total. Intuitive Surgical, Inc. paid the most, $1,257.

General payments to Michael Hernon by program year, 2019 to 2025

General payments to Michael Hernon by kind, 2019 to 2025

$1.6Kin total
  • Education$1,03665%
  • Food and beverage$54735%

Companies that paid Michael Hernon the most, 2019 to 2025

Share is of all general payments to this clinician.

See all payments to Michael Hernon

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Michael J. Hernon graduated from University of Massachusetts Medical School

Michael Hernon graduated from University of Massachusetts Medical School in 2011.

  1. Medical schoolUniversity of Massachusetts Medical School

Source: Dmand AI Professional Profile Data

Sources for Michael J. Hernon's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Michael J. Hernon

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Michael J. Hernon's NPI number?

Michael J. Hernon's NPI number is 1700171659. It was assigned on June 17, 2011, and it is active in the NPI Registry.

What does Michael J. Hernon specialize in?

Michael J. Hernon is a colorectal surgeon in Hartford, Connecticut. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).

Where does Michael J. Hernon practice?

Michael Hernon practices at 80 Seymour Street, Hartford, CT 06102. Michael Hernon's primary practice is Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare. Dmand AI also links Michael Hernon to 1 hospital and 1 medical group.

What is Michael J. Hernon's office phone number?

The practice phone on file for Michael Hernon is (860) 545-5000.

What is Michael J. Hernon's medical license number?

Michael Hernon holds Connecticut license 55868.

Which hospitals is Michael J. Hernon affiliated with?

Michael Hernon practices at Hartford Hospital in Hartford, Connecticut. Dmand AI links Michael Hernon to 1 more hospital.

What medical group is Michael J. Hernon part of?

Michael Hernon is linked to Hartford HealthCare Medical Group Specialists. Dmand AI links Michael Hernon to 1 more medical group.

Does Michael J. Hernon accept Medicare?

Yes. CMS data shows Michael Hernon billed Medicare for 135 services in 2024, and Michael Hernon accepts Medicare assignment.

What is Michael J. Hernon's MIPS score?

Michael Hernon's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.

How many Medicare patients does Michael J. Hernon see?

CMS counts 124 Medicare patients who saw Michael Hernon in 2024, with an average age of 72.

Show 6 more questionsShow fewer questions

What services does Michael J. Hernon bill to Medicare?

In 2024, Michael Hernon's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99221) and office visit, new patient (99202).

Where did Michael J. Hernon go to medical school?

Michael Hernon graduated from University of Massachusetts Medical School in 2011.

What drugs does Michael J. Hernon prescribe most?

In 2024 Medicare Part D data, Michael Hernon's most prescribed drugs by claims were Hydrocortisone, Metronidazole and Neomycin Sulfate.

Has Michael J. Hernon received payments from drug or device companies?

CMS Open Payments shows $1,583 in general payments to Michael Hernon from 5 companies from 2019 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Michael J. Hernon been practicing?

Michael Hernon graduated from medical school in 2011, 15 years ago.

Does Michael J. Hernon do research?

Dmand AI links 1 publication to Michael Hernon.

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