Dr. Robert D. Callahan, MD
- Medicare services, 2022
- 327
- Part D claims, 2022
- 2,332
- Industry payments
- $106
- Medical group
- 1
- State license
- 1
- Practice address
- 600 Gresham Dr, Norfolk, VA 23507
- Practice phone
- Call (757) 507-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sentara Princess Anne Hospital
Norfolk, Virginia
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. Robert D. Callahan is a family medicine physician in Norfolk, Virginia
Dr. Callahan practices at Sentara Princess Anne Hospital in Norfolk, Virginia.
Dr. Callahan's NPI, 1528033180, was assigned on February 17, 2006. Dr. Callahan graduated from University of Wisconsin School of Medicine in 1985. Dr. Callahan holds Virginia license 0101047267.
- NPI
- 1528033180NPI Registry (opens in a new tab)
- NPI enumeration date
- February 17, 2006
- NPI status
- Active
- Practice phone
- (757) 507-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Robert D. Callahan practices at Sentara Princess Anne Hospital in Norfolk, Virginia
Dr. Callahan's primary practice is Sentara Princess Anne Hospital, at 600 Gresham Dr, Norfolk, VA 23507 in Norfolk City. The practice phone is (757) 507-1000.
- Sentara Princess Anne Hospital600 Gresham Dr, Norfolk, VA 23507 · Norfolk CityPhone(757) 507-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert D. Callahan is affiliated with 1 site of care and 1 medical group
Dr. Callahan's primary practice is Sentara Princess Anne Hospital in Norfolk, Virginia. The medical group on file is LifeBridge Health Physical Therapy in collaboration with NovaCare Rehabilitation.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert D. 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 |
|---|---|
| Sentara Princess Anne Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert D. Callahan is one of 3,459 family medicine physicians in Virginia
Family medicine is Dr. Callahan's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Callahan is licensed in Virginia.
Specialties and state licenses
- Family medicine, VirginiaPrimary
Family medicine physicians near Dr. Callahan
Counts of family 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. Robert D. Callahan billed Medicare for 327 services in 2022
CMS data shows 327 Medicare services from Dr. Callahan across 4 procedure codes in 2022. Medicare paid $18,708 for them. Every service was in an office.
Dr. Callahan's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 5342022: 27449%
- Other services
- 2021: 1432022: 5363%
Dr. Callahan compared with the Virginia median for family medicine physicians, 2022
- Dr. Callahan
- Virginia median
- Medicare services
- 327vs 54340% below
- Part D claims
- 2,332vs 7213.2 times
Medians across 3,387 family medicine physicians in Virginia with Dmand AI profiles that report each measure.
Dr. Callahan's most billed Medicare procedure codes, 2022
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Callahan and other family medicine physicians in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert D. Callahan's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Callahan's median patient age at 62, with 44% 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 62
Patient panel by sex, all payers
- Women44%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Robert D. Callahan wrote 2,332 Medicare Part D claims in 2022
In 2022, Dr. Callahan wrote 2,332 Medicare Part D claims. They cover 69 drugs, with $165,556 in total drug cost. In 2021, CMS named 4,282 claims across 100 drugs.
Dr. Callahan's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 4,2822022: 2,33246%
Drugs named by CMS: 69 in 2022, 100 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Robert D. Callahan received $106 in industry payments from 2017 to 2022
CMS Open Payments shows 6 general payments to Dr. Callahan from 2 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $57.
General payments to Dr. Callahan by program year, 2017 to 2022
Companies that paid Dr. Callahan the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert D. Callahan graduated from University of Wisconsin School of Medicine
Dr. Callahan graduated from University of Wisconsin School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert D. 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 | 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Robert D. 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. Robert D. Callahan's NPI number?
Dr. Robert D. Callahan's NPI number is 1528033180. It was assigned on February 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert D. Callahan?
Dr. Robert D. Callahan is a family medicine physician in Norfolk, Virginia. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Robert D. Callahan practice?
Dr. Callahan practices at 600 Gresham Dr, Norfolk, VA 23507. Dr. Callahan's primary practice is Sentara Princess Anne Hospital in Norfolk, Virginia.
What is Dr. Robert D. Callahan's office phone number?
The practice phone on file for Dr. Callahan is (757) 507-1000.
What is Dr. Robert D. Callahan's medical license number?
Dr. Callahan holds Virginia license 0101047267.
What medical group is Dr. Robert D. Callahan part of?
Dr. Callahan is linked to LifeBridge Health Physical Therapy in collaboration with NovaCare Rehabilitation.
Does Dr. Robert D. Callahan accept Medicare?
Yes. CMS data shows Dr. Callahan billed Medicare for 327 services in 2022.
What services does Dr. Robert D. Callahan bill to Medicare?
In 2022, Dr. Callahan's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. Robert D. Callahan go to medical school?
Dr. Callahan graduated from University of Wisconsin School of Medicine in 1985.
What drugs does Dr. Robert D. Callahan prescribe most?
In 2022 Medicare Part D data, Dr. Callahan's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Robert D. Callahan received payments from drug or device companies?
CMS Open Payments shows $106 in general payments to Dr. Callahan from 2 companies from 2017 to 2022. The largest total came from Abbott Laboratories.
How long has Dr. Robert D. Callahan been practicing?
Dr. Callahan graduated from medical school in 1985, 41 years ago.
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