Marek Gruca, M.D.
Internal Medicine Physician · Christiansburg, VA
Marek Gruca, M.D. is an internal medicine physician with a practice address in Christiansburg, Virginia, and NPI 1679026561, issued on Jul 27, 2016. Check the license (Virginia 0101266733, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Marek Gruca
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101266733 VA
Self-reported in NPPES; status is on the state search - Practice location
- 2900 Lamb Cir, Christiansburg, VA 24073
- Phone
- (540) 731-2000
- Enumerated
- Jul 27, 2016
- Record last updated
- Jul 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (540) 731-2659
- Medicare enrollment
- Enrolled (PECOS I20190625003076); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,599 in Virginia → Look up another NPI →
Also registered at 2900 Lamb Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stacey Akers, PHARMDPharmacist1265900781
- Donna Aubrey, MDDiagnostic Radiology Physician1659326767
- Terrylyna Baffoe-Bonnie, MDInternal Medicine Physician1790470359
- William Baker, MDSpecialist1194766329
- Desiree Beasley, MSN, RN, CCRN, CCNSAcute Care Clinical Nurse Specialist1164087011
- Kenneth Belcher, M.D.Internal Medicine Physician1306865290
Verify Marek Gruca in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101266733Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
533 Medicare Part D claims for 177 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Ondansetron Odt34 claims
- Cefdinir28 claims
- Furosemide28 claims
- Pantoprazole Sodium24 claims
- Prednisone21 claims
- Doxycycline Hyclate18 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 one group practice
- Carilion Healthcare CorporationChristiansburg, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marek Gruca among 3,599 internal medicine physician records in Virginia
Marek Gruca, M.D. is one of 3,599 internal medicine physician records with a practice address in Virginia. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 22% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2016 · median 2003 among the 2,234 with a school on file
- Record last updated2019 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 internal medicine physician records list a practice address in Christiansburg
They are 31 of the 722 NPPES records with a practice address in Christiansburg, and 3,599 internal medicine physician records in Virginia.
All 3,599 in Virginia → Every provider in Christiansburg → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ghazaleh Aram, MDChristiansburg, VA 240731154499069
- Kenneth Belcher, M.D.Christiansburg, VA 240731306865290
- Noelle Bissell, MDChristiansburg, VA 240731861475311
- Michael Conatser, MDChristiansburg, VA 240731487638797
- Peter Dereus, DOChristiansburg, VA 240731568774875
- Lakshmi Kishore, MDChristiansburg, VA 240731740263383
- Manil Kukar, MDChristiansburg, VA 240731538461199
- Paul Olson, MD, FACPChristiansburg, VA 240731750355525
Common questions
What is Marek Gruca, M.D.'s NPI number?
Marek Gruca, M.D.'s National Provider Identifier (NPI) is 1679026561, issued on Jul 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Marek Gruca, M.D. located?
The NPPES record lists a practice address at 2900 Lamb Cir, Christiansburg, VA, 24073. Phone: (540) 731-2000. Providers update this record themselves, so call before visiting.
How can I verify Marek Gruca, M.D.'s license?
NPPES lists Virginia license number 0101266733, 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 Marek Gruca, M.D. prescribe under Medicare Part D?
In 2024, Marek Gruca, M.D. had 533 Medicare Part D claims for 177 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.