Cathleen G. Callahan, MD
Obstetrics & Gynecology Physician · Blacksburg, VA
Cathleen G. Callahan, MD is an obstetrics & gynecology physician with a practice address in Blacksburg, Virginia, and NPI 1235308354, issued on Feb 22, 2008. Check the license (Virginia 0101238491, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Cathleen G. Callahan
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 0101238491 VA
Self-reported in NPPES; status is on the state search - Practice location
- 2265 Kraft Dr, Blacksburg, VA 24060
- Phone
- (540) 231-0915
- Enumerated
- Feb 22, 2008
- Record last updated
- Jan 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (540) 231-5367
- Medicare enrollment
- Enrolled (PECOS I20080627000148); accepts Medicare assignment
- Medical or professional school
- University Of North Carolina At Chapel Hill School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,174 in Virginia → Look up another NPI →
Also registered at 2265 Kraft Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Louisa GamorStudent in an Organized Health Care Education/Training Program1104662311
- Katherine Jamison, PHARMDPharmacist1497047906
- Katherine KimStudent in an Organized Health Care Education/Training Program1679440127
- Michael McGeheeStudent in an Organized Health Care Education/Training Program1992556286
- Collin Sorrels, ATCAthletic Trainer1730603671
- Thomas StackStudent in an Organized Health Care Education/Training Program1083509970
Verify Cathleen G. Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101238491Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
11 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Free Clinic OF The New River Valley IncChristiansburg, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cathleen G. Callahan among 1,174 obstetrics & gynecology physician records in Virginia
Cathleen G. Callahan, MD is one of 1,174 obstetrics & gynecology physician records with a practice address in Virginia. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.
- NPI issued2008 · 59% of these records are older, 36% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2000 · median 2005 among the 701 with a school on file
- Record last updated2012 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Virginia
There are 1,174 obstetrics & gynecology physician records in Virginia.
All 1,174 in Virginia → Every provider in Blacksburg → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Tamera Howell, MDBlacksburg, VA 240601174504773
- Laurie Hudgins, M.D.Blacksburg, VA 240601033202742
- Nikola Letham, D.O.Blacksburg, VA 240601497048318
- Erica Royal, MDBlacksburg, VA 240601043286818
- George Zolovick, M.D.Blacksburg, VA 240601750471579
- Sanam Campbell, MDChristiansburg, VA 240731558345272
- Carrie Champine, D.O.Christiansburg, VA 240731922214527
- John Colby, M.D.Christiansburg, VA 240731760523310
Common questions
What is Cathleen G. Callahan, MD's NPI number?
Cathleen G. Callahan, MD's National Provider Identifier (NPI) is 1235308354, issued on Feb 22, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Cathleen G. Callahan, MD located?
The NPPES record lists a practice address at 2265 Kraft Dr, Blacksburg, VA, 24060. Phone: (540) 231-0915. Providers update this record themselves, so call before visiting.
How can I verify Cathleen G. Callahan, MD's license?
NPPES lists Virginia license number 0101238491, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cathleen G. Callahan, MD prescribe under Medicare Part D?
In 2024, Cathleen G. Callahan, MD had 11 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.