Mark Diefenderfer, DDS
Dentist · Midlothian, VA
Mark Diefenderfer, DDS is a dentist with a practice address in Midlothian, Virginia, and NPI 1588716112, issued on Jan 16, 2007. Check the license (Virginia 0401410788, as entered in NPPES) with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Diefenderfer
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 0401410788 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1612 Huguenot Road, Midlothian, VA 23113
- Phone
- (804) 794-9789
- Enumerated
- Jan 16, 2007
- Record last updated
- Aug 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (804) 419-1059
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,402 in Virginia → Look up another NPI →
Also registered at 1612 Huguenot Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Catherine Crichton, DDSDentist1649322272
- Jamie Denoncourt, D.D.S.General Practice Dentistry1427488519
- Steven Forte, DDSEndodontics1578671053
- Richard Perkins, DDSDentist1477605004
Verify Mark Diefenderfer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Virginia board licenses this profession
Search for license 0401410788Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% more Medicare Part D claims than the average dentist in 2024
170 Medicare Part D claims for 99 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Amoxicillin78 claims
- Clindamycin Hcl24 claims
- Hydrocodone-Acetaminophen18 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: $132.31
4 payments; by number, the most common kind was food and beverage; the largest payer was Zimvie Inc. The 31,974 providers of this specialty with any payment received $540.36 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.
Mark Diefenderfer among 2,402 dentist records in Virginia
Mark Diefenderfer, DDS is one of 2,402 dentist records with a practice address in Virginia. 60% 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 20% of them.
- NPI issued2007 · 20% of these records are older, 63% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2021 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 dentist records list a practice address in Midlothian
They are 61 of the 2,287 NPPES records with a practice address in Midlothian, and 2,402 dentist records in Virginia.
All 2,402 in Virginia → Every provider in Midlothian → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Zane Berry, DDSMidlothian, VA 231131285827329
- Jefferson Blackburn, DDSMidlothian, VA 231131760401913
- John Buhler, DDSMidlothian, VA 231131184776718
- Catherine Crichton, DDSMidlothian, VA 231131649322272
- Ronald Jessup, DDSMidlothian, VA 231131497961593
- Stephen Johansen, DDSRichmond, VA 231131992857510
- Juhan Kim, DDSMidlothian, VA 231131013024074
- Christine Ottersberg, DDSMidlothian, VA 231131952462376
Common questions
What is Mark Diefenderfer, DDS's NPI number?
Mark Diefenderfer, DDS's National Provider Identifier (NPI) is 1588716112, issued on Jan 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Diefenderfer, DDS located?
The NPPES record lists a practice address at 1612 Huguenot Road, Midlothian, VA, 23113. Phone: (804) 794-9789. Providers update this record themselves, so call before visiting.
How can I verify Mark Diefenderfer, DDS's license?
NPPES lists Virginia license number 0401410788, as entered by the provider. Search the Virginia board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Diefenderfer, DDS prescribe under Medicare Part D?
In 2024, Mark Diefenderfer, DDS had 170 Medicare Part D claims for 99 beneficiaries; the average among dentist prescribers was 86. 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.