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Dr. Charles Willis Callahan, DO
NPI1295823557
- Publications
- 33
- Clinical trials
- 1
- Hospital affiliations
- 1
- Medical group
- 1
- Insurance carriers
- 6
- Practice address
- 827 Linden Avenue, Baltimore, MD 21201
- Practice phone
- Call (410) 225-8996
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. 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. Charles Willis Callahan is a pediatric pulmonology physician in Baltimore, Maryland
Dr. Callahan practices at University of Maryland Medical Center Midtown Campus in Baltimore, Maryland, part of University of Maryland Medical System.
Dr. Callahan's NPI, 1295823557, was assigned on October 11, 2006. Dr. Callahan graduated from Rowan-Virtua School of Osteopathic Medicine - Stratford in 1984. Dr. Callahan holds Hawaii license DOS719.
NPI and contact details
- NPI
- 1295823557NPI Registry (opens in a new tab)
- NPI enumeration date
- October 11, 2006
- NPI status
- Active
- Practice phone
- (410) 225-8996
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Charles Willis Callahan practices at University of Maryland Medical Center Midtown Campus in Baltimore, Maryland
Dr. Callahan's primary practice is University of Maryland Medical Center Midtown Campus, at 827 Linden Avenue, Baltimore, MD 21201 in Baltimore City. The practice phone is (410) 225-8996.
- University of Maryland Medical Center Midtown Campus827 Linden Avenue, Baltimore, MD 21201 · Baltimore CityPhone(410) 225-8996
Source: Dmand AI Affiliation Data
Dr. Charles Willis Callahan is affiliated with 1 site of care and 1 medical group
Dr. Callahan's primary practice is University of Maryland Medical Center Midtown Campus in Baltimore, Maryland, part of University of Maryland Medical System. The medical group on file is University of Maryland Pediatric Associates.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Charles Willis Callahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callahan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland Medical Center Midtown Campus | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dmand AI maps EHR vendors, IT decision makers and buying committees across University of Maryland Medical System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Charles Willis Callahan is one of 19 pediatric pulmonology physicians in Maryland
Pediatric pulmonology is Dr. Callahan's primary specialty in the NPI Registry, under taxonomy code 2080P0214X. Dr. Callahan is board certified in pediatric pulmonology by the American Board of Pediatrics. Dr. Callahan is licensed in Hawaii.
Specialties and state licenses
- Pediatric pulmonology, HawaiiPrimary
Pediatric pulmonology physicians near Dr. Callahan
Counts of pediatric pulmonology 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. Charles Willis Callahan's patients have a median age of 8
Across all payers, Dmand AI patient panel data puts Dr. Callahan's median patient age at 8, with 47% women.
Dr. 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 8
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Charles Willis Callahan has 33 publications on record
Dmand AI links 33 papers to Dr. Callahan, published from 2006 to 2024. 2021 was the busiest year, with 3. The most frequent topics are Asthma, Military Medicine and Pediatrics. Dr. Callahan has published most often in Pediatrics. Dr. Callahan's most frequent co-authors are James Campbell, MD, Melinda Ellen Kantsiper, MD and Kenneth Scott Azarow, MD.
Papers33
Years published2006 to 2024
Dr. Callahan's papers by year, 2006 to 2024
Topics Dr. Callahan writes about most
- Asthma
- Military Medicine
- Pediatrics
- COVID-19
- Hospitals, Military
- Military Personnel
- SARS-CoV-2
- Anti-Asthmatic Agents
Dr. Callahan's most frequent co-authors
- James Campbell, MD2 shared papers
- Melinda Ellen Kantsiper, MD2 shared papers
- Kenneth Scott Azarow, MD1 shared paper
Recent publications by Dr. Callahan
BaltimoreCOVID-19Pandemics
Ann Allergy Asthma Immunol
AsthmaCOVID-19Pandemics
Antigens, ViralAsymptomatic DiseasesCOVID-19
See who Dr. Callahan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Callahan works with, so you can find a warm path to the right pediatric pulmonology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Charles Willis Callahan has worked on 1 clinical trial
Dmand AI links Dr. Callahan to 1 clinical trial. Conditions studied include Asthma and Lymphoma, Follicular.
Conditions in Dr. Callahan's trials
- Asthma
- Lymphoma, Follicular
Recent clinical trials with Dr. Callahan
AsthmaLymphoma, Follicular
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Charles Willis Callahan graduated from Rowan-Virtua School of Osteopathic Medicine - Stratford
Dr. Callahan graduated from Rowan-Virtua School of Osteopathic Medicine - Stratford in 1984.
- Medical school
- Board certified in pediatric pulmonology
- Board certified in pediatrics
- Board certified in 1993 - 2026
- Board certified in 2014 - 2026
- Board certified in 1985 - 2005
Source: Dmand AI Professional Profile Data
Dr. Charles Willis Callahan accepts plans from 6 insurance carriers
Dr. Callahan is in network with 6 carriers, including Aetna, United Healthcare and Cigna. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Cigna
- Blue Cross and Blue Shield of Kansas City
- CareFirst BlueCross BlueShield
- Kaiser Permanente
Plan types Dr. Callahan accepts, by number of carriers
- Medicare5
- EPO2
- HMO2
- POS2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Charles Willis 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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Charles Willis 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. Charles Willis Callahan's NPI number?
Dr. Charles Willis Callahan's NPI number is 1295823557. It was assigned on October 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles Willis Callahan?
Dr. Charles Willis Callahan is a pediatric pulmonology physician in Baltimore, Maryland. The primary specialty in the NPI Registry is Pediatric Pulmonology Physician (taxonomy code 2080P0214X).
Where does Dr. Charles Willis Callahan practice?
Dr. Callahan practices at 827 Linden Avenue, Baltimore, MD 21201. Dr. Callahan's primary practice is University of Maryland Medical Center Midtown Campus in Baltimore, Maryland, part of University of Maryland Medical System.
What is Dr. Charles Willis Callahan's office phone number?
The practice phone on file for Dr. Callahan is (410) 225-8996.
What is Dr. Charles Willis Callahan's medical license number?
Dr. Callahan holds Hawaii license DOS719.
Which hospitals is Dr. Charles Willis Callahan affiliated with?
Dr. Callahan practices at University of Maryland Medical Center Midtown Campus in Baltimore, Maryland.
What medical group is Dr. Charles Willis Callahan part of?
Dr. Callahan is linked to University of Maryland Pediatric Associates.
Is Dr. Charles Willis Callahan board certified?
Yes. Dr. Callahan is board certified in pediatric pulmonology by the American Board of Pediatrics.
Where did Dr. Charles Willis Callahan go to medical school?
Dr. Callahan graduated from Rowan-Virtua School of Osteopathic Medicine - Stratford in 1984.
How long has Dr. Charles Willis Callahan been practicing?
Dr. Callahan graduated from medical school in 1984, 42 years ago.
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Does Dr. Charles Willis Callahan do research?
Dmand AI links 33 publications to Dr. Callahan, published from 2006 to 2024. Dr. Callahan has worked on 1 clinical trial.
Who does Dr. Charles Willis Callahan publish with?
Dr. Callahan's most frequent co-authors are James Campbell, MD (2 shared papers), Melinda Ellen Kantsiper, MD (2 shared papers) and Kenneth Scott Azarow, MD (1 shared paper).
What insurance does Dr. Charles Willis Callahan accept?
Dr. Callahan is in network with 6 carriers, including Aetna, United Healthcare and Cigna. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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