Dr. Robert A. Ruef, MD
- Medicare services, 2024
- 1,074
- Medicare patients, 2024
- 834
- Hospital affiliations
- 5
- Medical groups
- 17
- State licenses
- 2
- Practice address
- 100 Reserve Rd, Danbury, CT 06810
- Practice phone
- Call (203) 314-6990
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nuvance Health Medical Practice
Danbury, Connecticut
Find Dr. Ruef'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. Robert A. Ruef is a diagnostic radiologist in Danbury, Connecticut
Dr. Ruef practices at Nuvance Health Medical Practice in Danbury, Connecticut.
Dr. Ruef's NPI, 1891085940, was assigned on April 11, 2011. Dr. Ruef graduated from New York Medical College in 2011. Dr. Ruef holds Hawaii license MD-21163.
- NPI
- 1891085940NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264664317
- NPI enumeration date
- April 11, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 314-6990
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert A. Ruef practices at Nuvance Health Medical Practice in Danbury, Connecticut
Dr. Ruef's primary practice is Nuvance Health Medical Practice, at 100 Reserve Rd, Danbury, CT 06810 in Western Ct County. The practice phone is (203) 314-6990.
- Nuvance Health Medical Practice100 Reserve Rd, Danbury, CT 06810 · Western Ct CountyPhone(203) 314-6990
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert A. Ruef is affiliated with 17 sites of care and 17 medical groups
Dr. Ruef's primary practice is Nuvance Health Medical Practice in Danbury, Connecticut. Dr. Ruef is also affiliated with Upstate University Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Ruef to 4 more hospitals, 16 medical groups and 11 group practices and clinics, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert A. Ruef's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruef practices, 16 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nuvance Health Medical Practice | Available with a free account |
| +16 more sites and 16 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert A. Ruef is one of 472 diagnostic radiologists in Connecticut
Diagnostic radiology is Dr. Ruef's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dmand AI has Dr. Ruef's licenses on file in 2 states: Hawaii and Washington.
Specialties and state licenses
- Diagnostic radiology, HawaiiPrimary
- Washington license
Diagnostic radiologists near Dr. Ruef
Counts of diagnostic radiologists 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. Robert A. Ruef billed Medicare for 1,074 services in 2024
CMS data shows 1,074 Medicare services from Dr. Ruef across 20 procedure codes in 2024, for 834 Medicare patients. Medicare paid $31,803 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ruef's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,0732024: 1,074No change
- Tests and treatments
- 2023: 122024: 0100%
Dr. Ruef compared with the Connecticut median for diagnostic radiologists, 2024
- Dr. Ruef
- Connecticut median
- Medicare services
- 1,074vs 2,06348% below
- Medicare patients
- 834vs 1,26234% below
Medians across 462 diagnostic radiologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Ruef'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.
Need commercial claims for Dr. Ruef?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ruef and other diagnostic radiologists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert A. Ruef treated 834 Medicare patients in 2024, average age 75
CMS counts 834 Medicare patients who saw Dr. Ruef in 2024. The largest group is 75 to 84, with 293 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 2.15, 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. Ruef's median patient age at 59, with 55% women.
Dr. Ruef's Medicare patients by age, 2024
Dr. Ruef's Medicare patients by sex, 2024
- Women42050%
- Men41450%
Chronic conditions among Dr. Ruef's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease47%
- Diabetes41%
- Heart failure41%
- Chronic kidney disease40%
- Anxiety38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ruef's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Robert A. Ruef takes part in Medicare
Dr. Ruef accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert A. Ruef graduated from New York Medical College
Dr. Ruef graduated from New York Medical College in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert A. Ruef'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Robert A. Ruef
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. Robert A. Ruef's NPI number?
Dr. Robert A. Ruef's NPI number is 1891085940. It was assigned on April 11, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert A. Ruef?
Dr. Robert A. Ruef is a diagnostic radiologist in Danbury, Connecticut. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Robert A. Ruef practice?
Dr. Ruef practices at 100 Reserve Rd, Danbury, CT 06810. Dr. Ruef's primary practice is Nuvance Health Medical Practice in Danbury, Connecticut. Dmand AI also links Dr. Ruef to 4 hospitals, 16 medical groups and 11 group practices and clinics.
What is Dr. Robert A. Ruef's office phone number?
The practice phone on file for Dr. Ruef is (203) 314-6990.
What is Dr. Robert A. Ruef's medical license number?
Dr. Ruef holds Hawaii license MD-21163, one of the licenses on file in 2 states.
Which states has Dr. Robert A. Ruef been licensed in?
Dmand AI has state licenses on file for Dr. Ruef in Hawaii and Washington.
Which hospitals is Dr. Robert A. Ruef affiliated with?
Dr. Ruef is affiliated with Upstate University Hospital. Dmand AI links Dr. Ruef to 4 more hospitals.
What medical group is Dr. Robert A. Ruef part of?
Dr. Ruef is linked to Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI links Dr. Ruef to 16 more medical groups.
Does Dr. Robert A. Ruef accept Medicare?
Yes. CMS data shows Dr. Ruef billed Medicare for 1,074 services in 2024, and Dr. Ruef accepts Medicare assignment.
How many Medicare patients does Dr. Robert A. Ruef see?
CMS counts 834 Medicare patients who saw Dr. Ruef in 2024, with an average age of 75.
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What services does Dr. Robert A. Ruef bill to Medicare?
In 2024, Dr. Ruef's most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (74177) and diagnostic imaging (70450).
Where did Dr. Robert A. Ruef go to medical school?
Dr. Ruef graduated from New York Medical College in 2011.
How long has Dr. Robert A. Ruef been practicing?
Dr. Ruef graduated from medical school in 2011, 15 years ago.
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