Child DevelopmentDevelopmental DisabilitiesInfant, Premature
Dr. Cliff O'Callahan, MD, PhD
NPI1811977663
- Publications
- 12
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 28 Crescent St, Middletown, CT 06457
- Practice phone
- Call (860) 344-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. O'Callahan'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. Cliff O'Callahan is a pediatrician in Middletown, Connecticut
Dr. O'Callahan practices at Middlesex Hospital in Middletown, Connecticut, part of Middlesex Health System.
Dr. O'Callahan's NPI, 1811977663, was assigned on January 18, 2006. Dr. O'Callahan graduated from Chicago College of Medicine and Surgery in 1990. Dr. O'Callahan holds Connecticut license 040077.
NPI and contact details
- NPI
- 1811977663NPI Registry (opens in a new tab)
- NPI enumeration date
- January 18, 2006
- NPI status
- Active
- Practice phone
- (860) 344-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Cliff O'Callahan practices at Middlesex Hospital in Middletown, Connecticut
Dr. O'Callahan's primary practice is Middlesex Hospital, at 28 Crescent St, Middletown, CT 06457 in Middlesex County. The practice phone is (860) 344-6000.
- Middlesex Hospital28 Crescent St, Middletown, CT 06457 · Middlesex CountyPhone(860) 344-6000
Source: Dmand AI Affiliation Data
Dr. Cliff O'Callahan is affiliated with 2 sites of care and 1 medical group
Dr. O'Callahan's primary practice is Middlesex Hospital in Middletown, Connecticut, part of Middlesex Health System. The medical group on file is Middlesex Health. Dmand AI also links Dr. O'Callahan to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Cliff O'Callahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Callahan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Middlesex Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Cliff O'Callahan is one of 788 pediatricians in Connecticut
Pediatrics is Dr. O'Callahan's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. O'Callahan is licensed in Connecticut.
Specialties and state licenses
- Pediatrics, ConnecticutPrimary
Pediatricians near Dr. O'Callahan
Counts of pediatricians 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. Cliff O'Callahan's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. O'Callahan's median patient age at 10, with 39% women.
Dr. O'Callahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women39%
- Men61%
Source: Dmand AI Patient Panel Data
Dr. Cliff O'Callahan has 12 publications on record
Dmand AI links 12 papers to Dr. O'Callahan, published from 2011 to 2023. 2019 was the busiest year, with 3. The most frequent topics are Rwanda, Global Health and Internship and Residency. Dr. O'Callahan has published most often in Pediatrics. Dr. O'Callahan's most frequent co-authors are Jonathan M. Spector, MD, Timothy F. Brewer, MD and Sabrina Marie Butteris, MD.
Papers12
Years published2011 to 2023
Dr. O'Callahan's papers by year, 2011 to 2023
Topics Dr. O'Callahan writes about most
- Rwanda
- Global Health
- Internship and Residency
- Pediatrics
- Breast Feeding
- Developing Countries
- Infant Mortality
- Infant, Premature
Dr. O'Callahan's most frequent co-authors
- Jonathan M. Spector, MD2 shared papers
- Timothy F. Brewer, MD1 shared paper
- Sabrina Marie Butteris, MD1 shared paper
Recent publications by Dr. O'Callahan
J Matern Fetal Neonatal Med
HypothermiaIntensive Care Units, NeonatalRwanda
Clinical CompetenceEducational MeasurementInternal Medicine
Paediatr Int Child Health
Infant MortalityRwandaTertiary Care Centers
See who Dr. O'Callahan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Callahan works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Cliff O'Callahan graduated from Chicago College of Medicine and Surgery
Dr. O'Callahan graduated from Chicago College of Medicine and Surgery in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Cliff O'Callahan'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Cliff O'Callahan
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. Cliff O'Callahan's NPI number?
Dr. Cliff O'Callahan's NPI number is 1811977663. It was assigned on January 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Cliff O'Callahan?
Dr. Cliff O'Callahan is a pediatrician in Middletown, Connecticut. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Cliff O'Callahan practice?
Dr. O'Callahan practices at 28 Crescent St, Middletown, CT 06457. Dr. O'Callahan's primary practice is Middlesex Hospital in Middletown, Connecticut, part of Middlesex Health System. Dmand AI also links Dr. O'Callahan to 1 group practice or clinic.
What is Dr. Cliff O'Callahan's office phone number?
The practice phone on file for Dr. O'Callahan is (860) 344-6000.
What is Dr. Cliff O'Callahan's medical license number?
Dr. O'Callahan holds Connecticut license 040077.
Which hospitals is Dr. Cliff O'Callahan affiliated with?
Dr. O'Callahan practices at Middlesex Hospital in Middletown, Connecticut.
What medical group is Dr. Cliff O'Callahan part of?
Dr. O'Callahan is linked to Middlesex Health.
Where did Dr. Cliff O'Callahan go to medical school?
Dr. O'Callahan graduated from Chicago College of Medicine and Surgery in 1990.
How long has Dr. Cliff O'Callahan been practicing?
Dr. O'Callahan graduated from medical school in 1990, 36 years ago.
Does Dr. Cliff O'Callahan do research?
Dmand AI links 12 publications to Dr. O'Callahan, published from 2011 to 2023.
Who does Dr. Cliff O'Callahan publish with?
Dr. O'Callahan's most frequent co-authors are Jonathan M. Spector, MD (2 shared papers), Timothy F. Brewer, MD (1 shared paper) and Sabrina Marie Butteris, MD (1 shared paper).
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