Dr. David I. Ruby, MD
- Medicare services, 2024
- 352
- Medicare patients, 2024
- 366
- Part D claims, 2024
- 21
- MIPS score, 2024
- 93
- Hospital affiliations
- 2
- Practice address
- 80 Seymour Street, Hartford, CT 06102
- Practice phone
- Call (860) 545-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ruby's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. David I. Ruby is an emergency medicine physician in Hartford, Connecticut
Dr. Ruby practices at Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare.
Dr. Ruby's NPI, 1720426414, was assigned on June 5, 2013. Dr. Ruby graduated from State University of New York Downstate Medical Center in 2013. Dr. Ruby holds Connecticut license 055141.
- NPI
- 1720426414NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486885563
- NPI enumeration date
- June 5, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (860) 545-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David I. Ruby practices at Hartford Hospital in Hartford, Connecticut
Dr. Ruby's primary practice is Hartford Hospital, at 80 Seymour Street, Hartford, CT 06102 in Hartford County. The practice phone is (860) 545-5000.
- Hartford Hospital80 Seymour Street, Hartford, CT 06102 · Hartford CountyPhone(860) 545-5000
Source: Dmand AI Affiliation Data
Dr. David I. Ruby is affiliated with 2 sites of care and 1 medical group
Dr. Ruby's primary practice is Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare. The medical group on file is Hartford Hospital. Dmand AI also links Dr. Ruby to 1 more hospital, named with a free account. Dr. Ruby's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David I. Ruby's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruby practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hartford Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David I. Ruby is one of 683 emergency medicine physicians in Connecticut
Emergency medicine is Dr. Ruby's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Ruby's licenses on file in 2 states: Connecticut and Massachusetts.
Specialties and state licenses
- Emergency medicine, ConnecticutPrimary
- Massachusetts license
Emergency medicine physicians near Dr. Ruby
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. David I. Ruby billed Medicare for 352 services in 2024
CMS data shows 352 Medicare services from Dr. Ruby across 4 procedure codes in 2024, for 366 Medicare patients. Medicare paid $47,776 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ruby's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3742024: 3526%
Dr. Ruby compared with the Connecticut median for emergency medicine physicians, 2024
- Dr. Ruby
- Connecticut median
- Medicare services
- 352vs 24345% above
- Medicare patients
- 366vs 25046% above
Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.
Dr. Ruby'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David I. Ruby treated 366 Medicare patients in 2024, average age 74
CMS counts 366 Medicare patients who saw Dr. Ruby in 2024. The largest group is 75 to 84, with 110 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% are also on Medicaid. Their average risk score is 2.50, 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. Ruby's median patient age at 58, with 55% women.
Dr. Ruby's Medicare patients by age, 2024
Dr. Ruby's Medicare patients by sex, 2024
- Women20857%
- Men15843%
Chronic conditions among Dr. Ruby's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Anxiety49%
- Arthritis47%
- Mood disorders46%
- Ischemic heart disease43%
- Diabetes40%
- Chronic kidney disease39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ruby's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David I. Ruby wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Ruby wrote 21 Medicare Part D claims for 17 patients. 86% of them were for generic drugs.
Dr. Ruby's Part D claims by kind of drug, 2024
- Generic18 claims86%
- Brand-name and other3 claims14%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. David I. Ruby scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Ruby for performance year 2024, reported as part of a group. Dr. Ruby accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Ruby's MIPS scores, performance year 2024
- 93of 100Final score
- 75.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 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. David I. Ruby received $20 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Ruby from 1 drug or device company in 2024. Education make up the largest share, 100% of the total. CSL Behring paid the most, $20.
Companies that paid Dr. Ruby the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David I. Ruby graduated from State University of New York Downstate Medical Center
Dr. Ruby graduated from State University of New York Downstate Medical Center in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David I. Ruby's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. David I. Ruby
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 I. Ruby's NPI number?
Dr. David I. Ruby's NPI number is 1720426414. It was assigned on June 5, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. David I. Ruby?
Dr. David I. Ruby is an emergency medicine physician in Hartford, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. David I. Ruby practice?
Dr. Ruby practices at 80 Seymour Street, Hartford, CT 06102. Dr. Ruby's primary practice is Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare. Dmand AI also links Dr. Ruby to 1 hospital.
What is Dr. David I. Ruby's office phone number?
The practice phone on file for Dr. Ruby is (860) 545-5000.
What is Dr. David I. Ruby's medical license number?
Dr. Ruby holds Connecticut license 055141, one of the licenses on file in 2 states.
Which states has Dr. David I. Ruby been licensed in?
Dmand AI has state licenses on file for Dr. Ruby in Connecticut and Massachusetts.
Which hospitals is Dr. David I. Ruby affiliated with?
Dr. Ruby practices at Hartford Hospital in Hartford, Connecticut. Dmand AI links Dr. Ruby to 1 more hospital.
What medical group is Dr. David I. Ruby part of?
Dr. Ruby is linked to Hartford Hospital.
Does Dr. David I. Ruby accept Medicare?
Yes. CMS data shows Dr. Ruby billed Medicare for 352 services in 2024, and Dr. Ruby accepts Medicare assignment.
What is Dr. David I. Ruby's MIPS score?
Dr. Ruby's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. David I. Ruby see?
CMS counts 366 Medicare patients who saw Dr. Ruby in 2024, with an average age of 74.
What services does Dr. David I. Ruby bill to Medicare?
In 2024, Dr. Ruby's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Where did Dr. David I. Ruby go to medical school?
Dr. Ruby graduated from State University of New York Downstate Medical Center in 2013.
Has Dr. David I. Ruby received payments from drug or device companies?
CMS Open Payments shows $20 in general payments to Dr. Ruby from 1 company from 2024 to 2024. The largest total came from CSL Behring.
How long has Dr. David I. Ruby been practicing?
Dr. Ruby graduated from medical school in 2013, 13 years ago.
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