Dr. Michael Kellner, MD

  • New Britain, CT
  • Emergency medicine physician
NPI1225423338PAC ID8820304736
Medicare services, 2024
111
Medicare patients, 2024
119
Part D claims, 2024
164
Publications
2
MIPS score, 2024
94
Practice address
100 Grand Street, New Britain, CT 06050
Practice phone
Call (860) 224-5011
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

The Hospital of Central Connecticut

Hospital · New Britain, Connecticut

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Dr. Michael Kellner is an emergency medicine physician in New Britain, Connecticut

Dr. Kellner practices at The Hospital of Central Connecticut in New Britain, Connecticut, part of Hartford HealthCare.

Dr. Kellner's NPI, 1225423338, was assigned on April 6, 2015. Dr. Kellner graduated from Columbia University College of Physicians and Surgeons in 2015. Dr. Kellner holds Connecticut license 60321.

NPI and contact details
Medicare PAC ID
8820304736
NPI enumeration date
April 6, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(860) 224-5011
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

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

Dr. Michael Kellner practices at The Hospital of Central Connecticut in New Britain, Connecticut

Dr. Kellner's primary practice is The Hospital of Central Connecticut, at 100 Grand Street, New Britain, CT 06050 in Hartford County. The practice phone is (860) 224-5011.

Source: Dmand AI Affiliation Data

Dr. Michael Kellner is affiliated with 3 sites of care and 2 medical groups

Dr. Kellner's primary practice is The Hospital of Central Connecticut in New Britain, Connecticut, part of Hartford HealthCare. The medical group on file is The Hospital of Central Connecticut. Dmand AI also links Dr. Kellner to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Kellner

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

Dmand AI tracks the EHR system at Dr. Michael Kellner's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kellner practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
The Hospital of Central ConnecticutAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Michael Kellner is one of 683 emergency medicine physicians in Connecticut

Emergency medicine is Dr. Kellner's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Kellner is licensed in Connecticut.

Specialties and state licenses

  • Emergency medicine, ConnecticutPrimaryLicense 60321 · taxonomy 207P00000X

Emergency medicine physicians near Dr. Kellner

Counts of emergency medicine physicians 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 Kellner billed Medicare for 111 services in 2024

CMS data shows 111 Medicare services from Dr. Kellner across 2 procedure codes in 2024, for 119 Medicare patients. Medicare paid $13,693 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024111
Medicare patients119
Paid by Medicare$13,693
Procedure codes2

Dr. Kellner's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 752024: 11148%

Dr. Kellner compared with the Connecticut median for emergency medicine physicians, 2024

  • Dr. Kellner
  • Connecticut median
Medicare services
111vs 24354% below
Medicare patients
119vs 25052% below
Part D claims
70vs 4846% above

Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.

Dr. Kellner'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 Dr. Kellner

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

Dr. Michael Kellner treated 119 Medicare patients in 2024, average age 73

CMS counts 119 Medicare patients who saw Dr. Kellner in 2024. The largest group is 75 to 84, with 32 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 52% are also on Medicaid. Their average risk score is 2.53, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Kellner's median patient age at 52, with 55% women.

Medicare patients, 2024119
Average age73
Average risk score2.53
Also on Medicaid52%

Dr. Kellner's Medicare patients by age, 2024

Dr. Kellner's Medicare patients by sex, 2024

  • Women6050%
  • Men5950%

Chronic conditions among Dr. Kellner's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol74%
  3. Anxiety55%
  4. Mood disorders55%
  5. Arthritis49%
  6. Depression47%
  7. Chronic kidney disease43%
  8. Ischemic heart disease43%

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

Dr. Kellner's patients across all payers

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

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women55%
  • Men43%

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

Dr. Michael Kellner wrote 164 Medicare Part D claims in 2024

In 2024, Dr. Kellner wrote 164 Medicare Part D claims for 95 patients. 96% of them were for generic drugs. CMS names the drug for 70 of them, across 5 drugs with 11 or more claims each, at $307 in total drug cost. In 2023, CMS named 41 claims across 3 drugs.

Part D claims, 2024164
Drugs named by CMS5
Total drug cost$307
Part D patients95

Dr. Kellner's Part D claims by kind of drug, 2024

  • Generic157 claims96%
  • Brand-name and other7 claims4%

Dr. Kellner'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. Kellner's Part D claims, 2024

  • Opioids16%27 of 164 claims
  • Antibiotics26%42 of 164 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: 412024: 7071%

Drugs named by CMS: 5 in 2024, 3 in 2023.

See all prescribing by Dr. Kellner

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 Kellner scored 94 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Kellner for performance year 2024, reported as part of a group. Dr. Kellner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Kellner's MIPS scores, performance year 2024

  • 94of 100Final score
  • 83.7of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 67of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

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

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Dr. Michael Kellner has 2 publications on record

Dmand AI links 2 papers to Dr. Kellner, published from 2010 to 2011. Dr. Kellner's most frequent co-authors are Paul R. Gigante, MD, Brian Yujin Hwang, MD and Christopher Paul Kellner, MD.

Papers2
Years published2010 to 2011

Dr. Kellner's most frequent co-authors

Recent publications by Dr. Kellner

See all 2 publications and co-authors

See who Dr. Kellner researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kellner works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

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

Dr. Michael Kellner received $124 in industry payments from 2021 to 2024

CMS Open Payments shows 6 general payments to Dr. Kellner from 5 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $36.

General payments to Dr. Kellner by program year, 2021 to 2024

Companies that paid Dr. Kellner the most, 2021 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Kellner

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

Dr. Michael Kellner graduated from Columbia University College of Physicians and Surgeons

Dr. Kellner graduated from Columbia University College of Physicians and Surgeons in 2015.

  1. Medical schoolColumbia University College of Physicians and Surgeons

Source: Dmand AI Professional Profile Data

Sources for Dr. Michael Kellner'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)
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 Dr. Michael Kellner

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 Kellner's NPI number?

Dr. Michael Kellner's NPI number is 1225423338. It was assigned on April 6, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. Michael Kellner?

Dr. Michael Kellner is an emergency medicine physician in New Britain, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Michael Kellner practice?

Dr. Kellner practices at 100 Grand Street, New Britain, CT 06050. Dr. Kellner's primary practice is The Hospital of Central Connecticut in New Britain, Connecticut, part of Hartford HealthCare. Dmand AI also links Dr. Kellner to 2 group practices and clinics and 1 medical group.

What is Dr. Michael Kellner's office phone number?

The practice phone on file for Dr. Kellner is (860) 224-5011.

What is Dr. Michael Kellner's medical license number?

Dr. Kellner holds Connecticut license 60321.

Which hospitals is Dr. Michael Kellner affiliated with?

Dr. Kellner practices at The Hospital of Central Connecticut in New Britain, Connecticut.

What medical group is Dr. Michael Kellner part of?

Dr. Kellner is linked to The Hospital of Central Connecticut. Dmand AI links Dr. Kellner to 1 more medical group.

Does Dr. Michael Kellner accept Medicare?

Yes. CMS data shows Dr. Kellner billed Medicare for 111 services in 2024, and Dr. Kellner accepts Medicare assignment.

What is Dr. Michael Kellner's MIPS score?

Dr. Kellner's MIPS final score for performance year 2024 is 94 out of 100, reported as part of a group.

How many Medicare patients does Dr. Michael Kellner see?

CMS counts 119 Medicare patients who saw Dr. Kellner in 2024, with an average age of 73.

Show 7 more questionsShow fewer questions

What services does Dr. Michael Kellner bill to Medicare?

In 2024, Dr. Kellner's most billed Medicare services were emergency department visit (99285) and emergency department visit (99284).

Where did Dr. Michael Kellner go to medical school?

Dr. Kellner graduated from Columbia University College of Physicians and Surgeons in 2015.

What drugs does Dr. Michael Kellner prescribe most?

In 2024 Medicare Part D data, Dr. Kellner's most prescribed drugs by claims were Oxycodone HCl, Cephalexin and Meloxicam.

Has Dr. Michael Kellner received payments from drug or device companies?

CMS Open Payments shows $124 in general payments to Dr. Kellner from 5 companies from 2021 to 2024. The largest total came from Pfizer Inc.

How long has Dr. Michael Kellner been practicing?

Dr. Kellner graduated from medical school in 2015, 11 years ago.

Does Dr. Michael Kellner do research?

Dmand AI links 2 publications to Dr. Kellner, published from 2010 to 2011.

Who does Dr. Michael Kellner publish with?

Dr. Kellner's most frequent co-authors are Paul R. Gigante, MD (2 shared papers), Brian Yujin Hwang, MD (2 shared papers) and Christopher Paul Kellner, MD (2 shared papers).

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