Mark A. Gentz, D.O.
Infectious Disease Physician · Midlothian, VA
Mark A. Gentz, D.O. is an infectious disease physician with a practice address in Midlothian, Virginia, and NPI 1033153465, issued on Jun 15, 2006. Check the license (Virginia 0102201823, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Mark A. Gentz
- Credential
- D.O.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 0102201823 VA
Self-reported in NPPES; status is on the state search - Practice location
- 13700 St Francis Blvd, Midlothian, VA 23114
- Phone
- (804) 601-0609
- Enumerated
- Jun 15, 2006
- Record last updated
- Jan 11, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (804) 594-7424
- Medicaid ID
- 0102201823 VA
- Medicare enrollment
- Enrolled (PECOS I20060626000158); accepts Medicare assignment
- Medical or professional school
- R Franklin University Of Med & Sci/Chicago Medical School, 2001
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 239 in Virginia → Look up another NPI →
Also registered at 13700 St Francis Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Barnett, M.D.Emergency Medicine Physician1780667048
- Tracy Bates, PTPhysical Therapist1619083953
- Lindsey Blake, DPTPhysical Therapist1902238967
- Andrew Bogle, M.D.Orthopaedic Hand Surgery Physician1669598587
- Denise Bowman, CCC-SLPSpeech-Language Pathologist1104359587
- Karen Bradshaw, NPNurse Practitioner1982986816
Verify Mark A. Gentz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0102201823Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average infectious disease physician in 2024
967 Medicare Part D claims for 151 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Sodium Chloride179 claims
- Daptomycin114 claims
- Ceftriaxone92 claims
- Biktarvy76 claims
- Doxycycline Hyclate70 claims
- Cefazolin Sodium43 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.
Industry payments in 2024: $435.05
11 payments; by number, the most common kind was food and beverage; the largest payer was Paratek Pharmaceuticals, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Bon Secours Medical Group Richmond Primary Care LLCTappahannock, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark A. Gentz among 239 infectious disease physician records in Virginia
Mark A. Gentz, D.O. is one of 239 infectious disease 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2001 · median 2002 among the 145 with a school on file
- Record last updated2017 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Virginia
There are 239 infectious disease physician records in Virginia.
All 239 in Virginia → Every provider in Midlothian → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Sarika Tripathi, M.DMidlothian, VA 231131215987268
- Ronald Artz, M.D.Mechanicsville, VA 231161518996818
- Sana Attar, MDMechanicsville, VA 231161790172724
- Diane Sinnatamby, MDMechanicsville, VA 231161174575732
- Clarence Childress, M.D.Glen Allen, VA 230601902996549
- Prajwol Joshi, MDGlen Allen, VA 230581558305615
- Emma Castillo Bercasio, MDWilliamsburg, VA 231881083706568
- Siham Mahgoub, MDWilliamsburg, VA 231881194834754
Common questions
What is Mark A. Gentz, D.O.'s NPI number?
Mark A. Gentz, D.O.'s National Provider Identifier (NPI) is 1033153465, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Gentz, D.O. located?
The NPPES record lists a practice address at 13700 St Francis Blvd, Midlothian, VA, 23114. Phone: (804) 601-0609. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Gentz, D.O.'s license?
NPPES lists Virginia license number 0102201823, 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 Mark A. Gentz, D.O. prescribe under Medicare Part D?
In 2024, Mark A. Gentz, D.O. had 967 Medicare Part D claims for 151 beneficiaries; the average among infectious disease physician prescribers was 689. 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.