Dr. Nancy Hofreuter O'Hara, MD
- Part D claims, 2024
- 27
- Publications
- 2
- Industry payments
- $5,136
- Medical group
- 1
- State license
- 1
- Practice address
- 1 Hospital Plz, Stamford, CT 06902
- Practice phone
- Call (203) 276-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Stamford Hospital
Stamford, Connecticut
Find Dr. O'Hara'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. Nancy Hofreuter O'Hara is a pediatrician in Stamford, Connecticut
Dr. O'Hara practices at Stamford Hospital in Stamford, Connecticut.
Dr. O'Hara's NPI, 1790909737, was assigned on April 12, 2007. Dr. O'Hara graduated from Perelman School of Medicine at the University of Pennsylvania in 1988. Dr. O'Hara holds Connecticut license 032831.
- NPI
- 1790909737NPI Registry (opens in a new tab)
- NPI enumeration date
- April 12, 2007
- NPI status
- Active
- Practice phone
- (203) 276-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Nancy Hofreuter O'Hara practices at Stamford Hospital in Stamford, Connecticut
Dr. O'Hara's primary practice is Stamford Hospital, at 1 Hospital Plz, Stamford, CT 06902 in Western Ct County. The practice phone is (203) 276-1000.
- Stamford Hospital1 Hospital Plz, Stamford, CT 06902 · Western Ct CountyPhone(203) 276-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nancy Hofreuter O'Hara is affiliated with 1 site of care and 1 medical group
Dr. O'Hara's primary practice is Stamford Hospital in Stamford, Connecticut. The medical group on file is OSF Multi-Specialty Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nancy Hofreuter O'Hara's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Hara practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stamford Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nancy Hofreuter O'Hara is one of 788 pediatricians in Connecticut
Pediatrics is Dr. O'Hara's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. O'Hara is licensed in Connecticut.
Specialties and state licenses
- Pediatrics, ConnecticutPrimary
Pediatricians near Dr. O'Hara
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. Nancy Hofreuter O'Hara's patients have a median age of 14
Across all payers, Dmand AI patient panel data puts Dr. O'Hara's median patient age at 14, with 37% women.
Dr. O'Hara's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 14
Patient panel by sex, all payers
- Women37%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Nancy Hofreuter O'Hara wrote 27 Medicare Part D claims in 2024
In 2024, Dr. O'Hara wrote 27 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $309 in total drug cost. In 2022, CMS named 42 claims across 3 drugs.
Dr. O'Hara's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. O'Hara's Part D claims, 2024
- Antibiotics44%12 of 27 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 422024: 1271%
Drugs named by CMS: 1 in 2024, 3 in 2022.
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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Nancy Hofreuter O'Hara has 2 publications on record
Dmand AI links 2 papers to Dr. O'Hara, published from 2012 to 2024. Dr. O'Hara's most frequent co-authors are Stuart H. Freedenfeld, MD, Richard Eugene Frye, MD and Daniel A. Rossignol, MD.
Dr. O'Hara's most frequent co-authors
- Stuart H. Freedenfeld, MD1 shared paper
- Richard Eugene Frye, MD1 shared paper
- Daniel A. Rossignol, MD1 shared paper
Recent publications by Dr. O'Hara
See who Dr. O'Hara researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Hara 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. Nancy Hofreuter O'Hara received $5,136 in industry payments in 2016
CMS Open Payments shows 5 general payments to Dr. O'Hara from 1 drug or device company in 2016. Consulting fees make up the largest share, 78% of the total. Octapharma USA, Inc. paid the most, $5,136.
General payments to Dr. O'Hara by kind, 2016 to 2016
- Consulting fees$4,00078%
- Travel and lodging$68613%
- Food and beverage$4509%
Companies that paid Dr. O'Hara the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nancy Hofreuter O'Hara graduated from Perelman School of Medicine at the University of Pennsylvania
Dr. O'Hara graduated from Perelman School of Medicine at the University of Pennsylvania in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nancy Hofreuter O'Hara'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Nancy Hofreuter O'Hara
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. Nancy Hofreuter O'Hara's NPI number?
Dr. Nancy Hofreuter O'Hara's NPI number is 1790909737. It was assigned on April 12, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Nancy Hofreuter O'Hara?
Dr. Nancy Hofreuter O'Hara is a pediatrician in Stamford, Connecticut. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Nancy Hofreuter O'Hara practice?
Dr. O'Hara practices at 1 Hospital Plz, Stamford, CT 06902. Dr. O'Hara's primary practice is Stamford Hospital in Stamford, Connecticut.
What is Dr. Nancy Hofreuter O'Hara's office phone number?
The practice phone on file for Dr. O'Hara is (203) 276-1000.
What is Dr. Nancy Hofreuter O'Hara's medical license number?
Dr. O'Hara holds Connecticut license 032831.
What medical group is Dr. Nancy Hofreuter O'Hara part of?
Dr. O'Hara is linked to OSF Multi-Specialty Group.
Where did Dr. Nancy Hofreuter O'Hara go to medical school?
Dr. O'Hara graduated from Perelman School of Medicine at the University of Pennsylvania in 1988.
What drugs does Dr. Nancy Hofreuter O'Hara prescribe most?
In 2024 Medicare Part D data, Dr. O'Hara's most prescribed drugs by claims were Azithromycin.
Has Dr. Nancy Hofreuter O'Hara received payments from drug or device companies?
CMS Open Payments shows $5,136 in general payments to Dr. O'Hara from 1 company from 2016 to 2016. The largest total came from Octapharma USA, Inc.
How long has Dr. Nancy Hofreuter O'Hara been practicing?
Dr. O'Hara graduated from medical school in 1988, 38 years ago.
Does Dr. Nancy Hofreuter O'Hara do research?
Dmand AI links 2 publications to Dr. O'Hara, published from 2012 to 2024.
Who does Dr. Nancy Hofreuter O'Hara publish with?
Dr. O'Hara's most frequent co-authors are Stuart H. Freedenfeld, MD (1 shared paper), Richard Eugene Frye, MD (1 shared paper) and Daniel A. Rossignol, MD (1 shared paper).
Selling to pediatrics practices?
See pediatricians in Connecticut by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card