Dr. Benjamin David Gallagher, MD

  • New Haven, CT
  • Internist
NPI1578958005PAC ID1658628110
Medicare services, 2024
71
Medicare patients, 2024
42
Part D claims, 2024
2,273
Publications
13
MIPS score, 2024
87
Practice address
20 York Street, New Haven, CT 06510
Practice phone
Call (203) 688-5900
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Yale New Haven Psychiatric Hospital (York St)

Psychiatric Inpatient Facility · New Haven, Connecticut

See all 6 affiliations

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Dr. Benjamin David Gallagher is an internist in New Haven, Connecticut

Dr. Gallagher practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut.

Dr. Gallagher's NPI, 1578958005, was assigned on April 1, 2015. Dr. Gallagher graduated from Columbia University College of Physicians and Surgeons in 2015. Dr. Gallagher holds Connecticut license 61118.

NPI and contact details
Medicare PAC ID
1658628110
NPI enumeration date
April 1, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(203) 688-5900
Professional email
Get email
Personal email
Get email
Mobile number
Get number
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. Benjamin David Gallagher practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut

Dr. Gallagher's primary practice is Yale New Haven Psychiatric Hospital (York St), at 20 York Street, New Haven, CT 06510. The practice phone is (203) 688-5900.

  • Yale New Haven Psychiatric Hospital (York St)
    20 York Street, New Haven, CT 06510Phone(203) 688-5900

Source: Dmand AI Affiliation Data

Dr. Benjamin David Gallagher is affiliated with 4 sites of care and 2 medical groups

Dr. Gallagher's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dr. Gallagher is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links Dr. Gallagher to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Gallagher

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

Dmand AI tracks the EHR system at Dr. Benjamin David Gallagher's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gallagher practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Yale New Haven Psychiatric Hospital (York St)Available with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Benjamin David Gallagher is one of 2,189 internists in Connecticut

Internal medicine is Dr. Gallagher's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gallagher is licensed in Connecticut.

Specialties and state licenses

  • Internal medicine, ConnecticutPrimaryLicense 61118 · taxonomy 207R00000X

Internists near Dr. Gallagher

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. Benjamin David Gallagher billed Medicare for 71 services in 2024

CMS data shows 71 Medicare services from Dr. Gallagher across 2 procedure codes in 2024, for 42 Medicare patients. Medicare paid $3,407 for them.

Medicare services, 202471
Medicare patients42
Paid by Medicare$3,407
Procedure codes2

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

  • 2023
  • 2024
Office and hospital visits
2023: 02024: 50
Lab and pathology
2023: 232024: 219%

Where Dr. Gallagher's Medicare services took place, 2024

  • In an office2130%
  • In a facility5070%

Dr. Gallagher compared with the Connecticut median for internists, 2024

  • Dr. Gallagher
  • Connecticut median
Medicare services
71vs 39082% below
Medicare patients
42vs 17276% below
Part D claims
1,788vs 3435.2 times

Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.

Dr. Gallagher'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. Gallagher

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

Dr. Benjamin David Gallagher treated 42 Medicare patients in 2024, average age 66

CMS counts 42 Medicare patients who saw Dr. Gallagher in 2024. The largest group is under 65, with 19 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 64% are also on Medicaid. Their average risk score is 1.93, 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. Gallagher's median patient age at 64, with 60% women.

Medicare patients, 202442
Average age66
Average risk score1.93
Also on Medicaid64%

Dr. Gallagher's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Gallagher's Medicare patients by sex, 2024

  • Women2662%
  • Men1638%

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

  1. High blood pressure75%
  2. High cholesterol71%
  3. Diabetes55%
  4. Anxiety50%
  5. Mood disorders48%
  6. Depression45%
  7. Arthritis40%
  8. Heart failure36%

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

Dr. Gallagher's patients across all payers

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

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women60%
  • Men40%

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

Dr. Benjamin David Gallagher wrote 2,273 Medicare Part D claims in 2024

In 2024, Dr. Gallagher wrote 2,273 Medicare Part D claims for 193 patients. 75% of them were for generic drugs. CMS names the drug for 1,788 of them, across 66 drugs with 11 or more claims each, at $321,629 in total drug cost. In 2023, CMS named 1,379 claims across 52 drugs.

Part D claims, 20242,273
Drugs named by CMS66
Total drug cost$321,629
Part D patients193

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

  • Generic1,714 claims75%
  • Brand-name487 claims21%
  • Other72 claims3%

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

  • Opioids4%88 of 2,273 claims
  • Antibiotics1%15 of 2,273 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: 1,3792024: 1,78830%

Drugs named by CMS: 66 in 2024, 52 in 2023.

See all prescribing by Dr. Gallagher

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. Benjamin David Gallagher scored 87 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Gallagher for performance year 2024, reported as part of a group. Dr. Gallagher accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gallagher as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Gallagher's MIPS scores, performance year 2024

  • 87of 100Final score
  • 77.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 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. Benjamin David Gallagher has 13 publications on record

Dmand AI links 13 papers to Dr. Gallagher, published from 2015 to 2024. 2023 was the busiest year, with 2. The most frequent topics are Hypertension, Blood Pressure and Clinical Competence. Dr. Gallagher has published most often in J Gen Intern Med. Dr. Gallagher's most frequent co-authors are Peggy B.k Leung, Jennifer L. Cluett, MD and Anna K. Donovan.

Papers13
Years published2015 to 2024

Dr. Gallagher's papers by year, 2015 to 2024

Topics Dr. Gallagher writes about most

  • Hypertension
  • Blood Pressure
  • Clinical Competence
  • Internal Medicine
  • Internship and Residency
  • Educational Measurement
  • Education, Medical, Undergraduate
  • Pilot Projects

Dr. Gallagher's most frequent co-authors

Recent publications by Dr. Gallagher

See all 13 publications and co-authors

See who Dr. Gallagher researches with

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

How network discovery works

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

Dr. Benjamin David Gallagher graduated from Columbia University College of Physicians and Surgeons

Dr. Gallagher 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. Benjamin David Gallagher'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
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. Benjamin David Gallagher

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. Benjamin David Gallagher's NPI number?

Dr. Benjamin David Gallagher's NPI number is 1578958005. It was assigned on April 1, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. Benjamin David Gallagher?

Dr. Benjamin David Gallagher is an internist in New Haven, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Benjamin David Gallagher practice?

Dr. Gallagher practices at 20 York Street, New Haven, CT 06510. Dr. Gallagher's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dmand AI also links Dr. Gallagher to 1 community health center, 1 group practice or clinic and 1 medical group.

What is Dr. Benjamin David Gallagher's office phone number?

The practice phone on file for Dr. Gallagher is (203) 688-5900.

What is Dr. Benjamin David Gallagher's medical license number?

Dr. Gallagher holds Connecticut license 61118.

Which hospitals is Dr. Benjamin David Gallagher affiliated with?

Dr. Gallagher is affiliated with Yale New Haven Hospital.

What medical group is Dr. Benjamin David Gallagher part of?

Dr. Gallagher is linked to Yale Health. Dmand AI links Dr. Gallagher to 1 more medical group.

Does Dr. Benjamin David Gallagher accept Medicare?

Yes. CMS data shows Dr. Gallagher billed Medicare for 71 services in 2024, and Dr. Gallagher accepts Medicare assignment.

Does Dr. Benjamin David Gallagher offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Gallagher as offering telehealth services.

What is Dr. Benjamin David Gallagher's MIPS score?

Dr. Gallagher's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.

Show 7 more questionsShow fewer questions

How many Medicare patients does Dr. Benjamin David Gallagher see?

CMS counts 42 Medicare patients who saw Dr. Gallagher in 2024, with an average age of 66.

What services does Dr. Benjamin David Gallagher bill to Medicare?

In 2024, Dr. Gallagher's most billed Medicare services were hospital inpatient care (99232) and lab and pathology test (83036).

Where did Dr. Benjamin David Gallagher go to medical school?

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

What drugs does Dr. Benjamin David Gallagher prescribe most?

In 2024 Medicare Part D data, Dr. Gallagher's most prescribed drugs by claims were Atorvastatin Calcium, Albuterol Sulfate Hfa and Amlodipine Besylate.

How long has Dr. Benjamin David Gallagher been practicing?

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

Does Dr. Benjamin David Gallagher do research?

Dmand AI links 13 publications to Dr. Gallagher, published from 2015 to 2024.

Who does Dr. Benjamin David Gallagher publish with?

Dr. Gallagher's most frequent co-authors are Peggy B.k Leung (2 shared papers), Jennifer L. Cluett, MD (1 shared paper) and Anna K. Donovan (1 shared paper).

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