John Christopher Colby, M.D.
Obstetrics & Gynecology Physician · Christiansburg, VA
John Christopher Colby, M.D. is an obstetrics & gynecology physician with a practice address in Christiansburg, Virginia, and NPI 1760523310, issued on Feb 8, 2007. Check the license (Virginia 0101236532, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- John Christopher Colby
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 0101236532 VA
Self-reported in NPPES; status is on the state search - Practice location
- 2900 Lamb Cir Ste 202, Christiansburg, VA 24073
- Phone
- (540) 731-4578
- Enumerated
- Feb 8, 2007
- Record last updated
- Apr 15, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (540) 731-0867
- Medicaid IDs
- 010097061 VA
010092973 VA - Medicare enrollment
- Enrolled (PECOS I20090528000484); accepts Medicare assignment
- Medical or professional school
- Medical College Of Georgia School Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,174 in Virginia → Look up another NPI →
Also registered at 2900 Lamb Cir Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Thomas Kraemer, MDObstetrics & Gynecology Physician1093707432
Verify John Christopher Colby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101236532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
69 Medicare Part D claims for 27 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Estradiol17 claims
- Premarin13 claims
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 2 group practices
- Carilion Healthcare CorporationChristiansburg, VA
- Obhg Virginia LLCRockingham, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Christopher Colby among 1,174 obstetrics & gynecology physician records in Virginia
John Christopher Colby, M.D. 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 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 41% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1991 · median 2005 among the 701 with a school on file
- Record last updated2019 · 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).
14 obstetrics & gynecology physician records list a practice address in Christiansburg
They are 14 of the 722 NPPES records with a practice address in Christiansburg, and 1,174 obstetrics & gynecology physician records in Virginia.
All 1,174 in Virginia → Every provider in Christiansburg → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Rosa Avila, MDChristiansburg, VA 240731124522677
- Linda Brogdon, MDChristiansburg, VA 240731013208032
- Sanam Campbell, MDChristiansburg, VA 240731558345272
- Carrie Champine, D.O.Christiansburg, VA 240731922214527
- Claire CraftChristiansburg, VA 240731770946980
- Edward Denious, MDChristiansburg, VA 240731376593921
- Jill Devlin, DOChristiansburg, VA 240731114246337
- Margaret Grove, M.D.Christiansburg, VA 240731528201506
Common questions
What is John Christopher Colby, M.D.'s NPI number?
John Christopher Colby, M.D.'s National Provider Identifier (NPI) is 1760523310, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Christopher Colby, M.D. located?
The NPPES record lists a practice address at 2900 Lamb Cir Ste 202, Christiansburg, VA, 24073. Phone: (540) 731-4578. Providers update this record themselves, so call before visiting.
How can I verify John Christopher Colby, M.D.'s license?
NPPES lists Virginia license number 0101236532, 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 John Christopher Colby, M.D. prescribe under Medicare Part D?
In 2024, John Christopher Colby, M.D. had 69 Medicare Part D claims for 27 beneficiaries; 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.