Dr. Christopher Brian Ruser, MD

  • New Haven, CT
  • Internist
NPI1588772867
Part D claims, 2024
71
Publications
37
State license
1
Year NPI issued
2006
Practice address
20 York St, New Haven, CT 06510
Practice phone
Call (717) 277-6565
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

VA Connecticut Health Care System - West Haven

New Haven, Connecticut

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Dr. Christopher Brian Ruser is an internist in New Haven, Connecticut

Dr. Ruser practices at VA Connecticut Health Care System - West Haven in New Haven, Connecticut.

Dr. Ruser's NPI, 1588772867, was assigned on August 28, 2006. Dr. Ruser holds Connecticut license 039639.

NPI and contact details
NPI enumeration date
August 28, 2006
NPI status
Active
Practice phone
(717) 277-6565
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Christopher Brian Ruser practices at VA Connecticut Health Care System - West Haven in New Haven, Connecticut

Dr. Ruser's primary practice is VA Connecticut Health Care System - West Haven, at 20 York St, New Haven, CT 06510 in South Central Ct County. The practice phone is (717) 277-6565.

  • VA Connecticut Health Care System - West Haven
    20 York St, New Haven, CT 06510 · South Central Ct CountyPhone(717) 277-6565

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Christopher Brian Ruser is affiliated with 1 site of care

Dr. Ruser's primary practice is VA Connecticut Health Care System - West Haven in New Haven, Connecticut.

VA Connecticut Health Care System - West HavenNew Haven, ConnecticutPrimary

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dmand AI tracks the EHR system at Dr. Christopher Brian Ruser's practice

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

EHR by site
SiteEHR vendor and product
VA Connecticut Health Care System - West HavenAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Christopher Brian Ruser is one of 2,189 internists in Connecticut

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

Specialties and state licenses

  • Internal medicine, ConnecticutPrimaryLicense 039639 · taxonomy 207R00000X

Internists near Dr. Ruser

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. Christopher Brian Ruser's patients have a median age of 80

Across all payers, Dmand AI patient panel data puts Dr. Ruser's median patient age at 80, with 3% women.

Dr. Ruser's patients across all payers

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

Patient panel by age, all payers

Median age 80

Patient panel by sex, all payers

  • Women3%
  • Men97%

Source: Dmand AI Patient Panel Data

Dr. Christopher Brian Ruser wrote 71 Medicare Part D claims in 2024

In 2024, Dr. Ruser wrote 71 Medicare Part D claims for 11 patients. 93% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $240 in total drug cost. In 2019, CMS named 23 claims across 2 drugs.

Part D claims, 202471
Drugs named by CMS2
Total drug cost$240
Part D patients11

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

  • Generic66 claims93%
  • Brand-name and other5 claims7%

Dr. Ruser's most prescribed drugs by claims, 2021

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2019 to 2021

  • 2019
  • 2021
Claims for drugs CMS names
2019: 232021: 23No change

Drugs named by CMS: 2 in 2021, 2 in 2019.

See all prescribing by Dr. Ruser

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

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Dr. Christopher Brian Ruser has 37 publications on record

Dmand AI links 37 papers to Dr. Ruser, published from 2014 to 2025. 2020 was the busiest year, with 5. The most frequent topics are Veterans, Obesity and Primary Health Care. Dr. Ruser has published most often in Pain Med. Dr. Ruser's most frequent co-authors are Jeffrey David Kravetz, MD, Daniel Glenn Federman, MD and Juliette Fromm Spelman, MD.

Papers37
Years published2014 to 2025

Dr. Ruser's papers by year, 2016 to 2025

Topics Dr. Ruser writes about most

  • Veterans
  • Obesity
  • Primary Health Care
  • Veterans Health
  • Overweight
  • Weight Reduction Programs
  • Binge-Eating Disorder
  • Body Mass Index

Dr. Ruser's most frequent co-authors

Recent publications by Dr. Ruser

See all 37 publications and co-authors

See who Dr. Ruser researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ruser 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

Sources for Dr. Christopher Brian Ruser'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Christopher Brian Ruser

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. Christopher Brian Ruser's NPI number?

Dr. Christopher Brian Ruser's NPI number is 1588772867. It was assigned on August 28, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Christopher Brian Ruser?

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

Where does Dr. Christopher Brian Ruser practice?

Dr. Ruser practices at 20 York St, New Haven, CT 06510. Dr. Ruser's primary practice is VA Connecticut Health Care System - West Haven in New Haven, Connecticut.

What is Dr. Christopher Brian Ruser's office phone number?

The practice phone on file for Dr. Ruser is (717) 277-6565.

What is Dr. Christopher Brian Ruser's medical license number?

Dr. Ruser holds Connecticut license 039639.

What drugs does Dr. Christopher Brian Ruser prescribe most?

In 2021 Medicare Part D data, Dr. Ruser's most prescribed drugs by claims were Atorvastatin Calcium and Omeprazole.

How long has Dr. Christopher Brian Ruser been practicing?

Dr. Ruser's NPI was assigned in 2006.

Does Dr. Christopher Brian Ruser do research?

Dmand AI links 37 publications to Dr. Ruser, published from 2014 to 2025.

Who does Dr. Christopher Brian Ruser publish with?

Dr. Ruser's most frequent co-authors are Jeffrey David Kravetz, MD (6 shared papers), Daniel Glenn Federman, MD (5 shared papers) and Juliette Fromm Spelman, MD (5 shared papers).

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