Dr. David A. Roer, MD

  • Waterbury, CT
  • Nephrologist
NPI1073513685
Medicare services, 2018
263
Part D claims, 2018
511
Publications
2
Clinical trials
2
Hospital affiliations
1
Practice address
56 Franklin Street, Waterbury, CT 06706
Practice phone
Call (203) 709-6020
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Saint Mary's Hospital

Hospital · Waterbury, Connecticut

See all 4 affiliations

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Dr. David A. Roer is a nephrologist in Waterbury, Connecticut

Dr. Roer practices at Saint Mary's Hospital in Waterbury, Connecticut, part of Trinity Health.

Dr. Roer's NPI, 1073513685, was assigned on July 26, 2005. Dr. Roer holds Connecticut license 028220.

NPI and contact details
NPI enumeration date
July 26, 2005
NPI status
Active
Practice phone
(203) 709-6020
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 Affiliation Data

Dr. David A. Roer practices at Saint Mary's Hospital in Waterbury, Connecticut

Dr. Roer's primary practice is Saint Mary's Hospital, at 56 Franklin Street, Waterbury, CT 06706 in New Haven County. The practice phone is (203) 709-6020.

Source: Dmand AI Affiliation Data

Dr. David A. Roer is affiliated with 3 sites of care and 1 medical group

Dr. Roer's primary practice is Saint Mary's Hospital in Waterbury, Connecticut, part of Trinity Health. The medical group on file is Nephrology and Hypertension Associates. Dmand AI also links Dr. Roer to 1 more group practice or clinic and 1 hospital outpatient department, each named with a free account.

See all 4 affiliations for Dr. Roer

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

Dmand AI tracks the EHR system at Dr. David A. Roer's practice

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

EHR by site
SiteEHR vendor and product
Saint Mary's HospitalAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. David A. Roer is one of 141 nephrologists in Connecticut

Nephrology is Dr. Roer's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Roer is licensed in Connecticut.

Specialties and state licenses

  • Nephrology, ConnecticutPrimaryLicense 028220 · taxonomy 207RN0300X

Nephrologists near Dr. Roer

Counts of nephrologists 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. David A. Roer billed Medicare for 263 services in 2018

CMS data shows 263 Medicare services from Dr. Roer across 8 procedure codes in 2018. Medicare paid $30,791 for them.

Medicare services, 2018263
Paid by Medicare$30,791
Procedure codes8

Dr. Roer's Medicare services by type, 2017 to 2018

  • 2017
  • 2018
Office and hospital visits
2017: 7192018: 19273%
Tests and treatments
2017: 3392018: 7179%
Lab and pathology
2017: 382018: 0100%
Surgery
2017: 632018: 0100%

Where Dr. Roer's Medicare services took place, 2018

  • In an office13250%
  • In a facility13150%

Dr. Roer compared with the Connecticut median for nephrologists, 2018

  • Dr. Roer
  • Connecticut median
Medicare services
263vs 73264% below
Part D claims
511vs 60015% below

Medians across 137 nephrologists in Connecticut with Dmand AI profiles that report each measure.

Dr. Roer's most billed Medicare procedure codes, 2018

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. Roer

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Roer and other nephrologists in Connecticut.

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

Dr. David A. Roer's patients have a median age of 71

Across all payers, Dmand AI patient panel data puts Dr. Roer's median patient age at 71, with 64% women.

Dr. Roer's patients across all payers

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

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women64%
  • Men29%

Source: Dmand AI Patient Panel Data

Dr. David A. Roer wrote 511 Medicare Part D claims in 2018

In 2018, Dr. Roer wrote 511 Medicare Part D claims. They cover 21 drugs, with $41,606 in total drug cost. In 2017, CMS named 1,070 claims across 35 drugs.

Part D claims, 2018511
Drugs named by CMS21
Total drug cost$41,606

Dr. Roer's most prescribed drugs by claims, 2018

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, 2017 to 2018

  • 2017
  • 2018
Claims for drugs CMS names
2017: 1,0702018: 51152%

Drugs named by CMS: 21 in 2018, 35 in 2017.

See all prescribing by Dr. Roer

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

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Dr. David A. Roer has 2 publications on record

Dmand AI links 2 papers to Dr. Roer in 2024. The most frequent topics are Kidney Failure, Chronic and Renal Dialysis. Dr. Roer has published most often in Am J Manag Care. Dr. Roer's most frequent co-author is Nathan Herling Moore, MD.

Papers2

Topics Dr. Roer writes about most

  • Kidney Failure, Chronic
  • Renal Dialysis

Dr. Roer's most frequent co-authors

Recent publications by Dr. Roer

See all 2 publications and co-authors

See who Dr. Roer researches with

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

How network discovery works

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

Dr. David A. Roer has worked on 2 clinical trials

Dmand AI links Dr. Roer to 2 clinical trials, 2 of them phase 3 studies. Conditions studied include Renal Insufficiency, Chronic, Kidney Failure, Chronic and Renal Insufficiency. GlaxoSmithKline sponsors the most, 2.

Conditions in Dr. Roer's trials

  • Renal Insufficiency, Chronic
  • Kidney Failure, Chronic
  • Renal Insufficiency

Investigators on the most trials with Dr. Roer

Recent clinical trials with Dr. Roer

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. David A. Roer received $88 in industry payments from 2016 to 2019

CMS Open Payments shows 5 general payments to Dr. Roer from 5 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $25. It also lists 4 research payments totaling $28,000 in 2016.

General payments to Dr. Roer by program year, 2016 to 2019

Companies that paid Dr. Roer the most, 2016 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Roer

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

Sources for Dr. David A. Roer'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 Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. David A. Roer

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. David A. Roer's NPI number?

Dr. David A. Roer's NPI number is 1073513685. It was assigned on July 26, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. David A. Roer?

Dr. David A. Roer is a nephrologist in Waterbury, Connecticut. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. David A. Roer practice?

Dr. Roer practices at 56 Franklin Street, Waterbury, CT 06706. Dr. Roer's primary practice is Saint Mary's Hospital in Waterbury, Connecticut, part of Trinity Health. Dmand AI also links Dr. Roer to 1 group practice or clinic and 1 hospital outpatient department.

What is Dr. David A. Roer's office phone number?

The practice phone on file for Dr. Roer is (203) 709-6020.

What is Dr. David A. Roer's medical license number?

Dr. Roer holds Connecticut license 028220.

Which hospitals is Dr. David A. Roer affiliated with?

Dr. Roer practices at Saint Mary's Hospital in Waterbury, Connecticut.

What medical group is Dr. David A. Roer part of?

Dr. Roer is linked to Nephrology and Hypertension Associates.

Does Dr. David A. Roer accept Medicare?

Yes. CMS data shows Dr. Roer billed Medicare for 263 services in 2018.

What services does Dr. David A. Roer bill to Medicare?

In 2018, Dr. Roer's most billed Medicare services were hospital inpatient care (99233), dialysis (90961) and dialysis (90960).

What drugs does Dr. David A. Roer prescribe most?

In 2018 Medicare Part D data, Dr. Roer's most prescribed drugs by claims were Amlodipine Besylate, Lisinopril and Hydrochlorothiazide.

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Has Dr. David A. Roer received payments from drug or device companies?

CMS Open Payments shows $88 in general payments to Dr. Roer from 5 companies from 2016 to 2019. The largest total came from Amgen Inc.

How long has Dr. David A. Roer been practicing?

Dr. Roer's NPI was assigned in 2005.

Does Dr. David A. Roer do research?

Dmand AI links 2 publications to Dr. Roer. Dr. Roer has worked on 2 clinical trials.

Who does Dr. David A. Roer publish with?

Dr. Roer's most frequent co-authors are Nathan Herling Moore, MD (1 shared paper).

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