Mark St. George, D.D.S.
General Practice Dentistry · Kensington, MD
Mark St. George, D.D.S. is a general practice dentistry with a practice address in Kensington, Maryland, and NPI 1619994282, issued on Jul 17, 2006. Check the license (Maryland 9312, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark St. George
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 9312 MD
Self-reported in NPPES; status is on the state search - Practice location
- 10128 Cedar LN, Kensington, MD 20895
- Phone
- (301) 530-2772
- Enumerated
- Jul 17, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 2,408 in Maryland → Look up another NPI →
Verify Mark St. George in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 9312Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average general practice dentistry in 2024
15 Medicare Part D claims for 11 beneficiaries, against an average of 83 among the 70,290 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.
Mark St. George among 2,408 general practice dentistry records in Maryland
Mark St. George, D.D.S. is one of 2,408 general practice dentistry records with a practice address in Maryland. 62% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 72% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 general practice dentistry records list a practice address in Kensington
They are 9 of the 686 NPPES records with a practice address in Kensington, and 2,408 general practice dentistry records in Maryland.
All 2,408 in Maryland → Every provider in Kensington → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Robert Barnett, D.D.S.Kensington, MD 208951629157698
- Sarah Deckard, DMDKensington, MD 208951386875664
- Susan Green, DDSKensington, MD 208951336470533
- Susan Ho, DDSKensington, MD 208951750552998
- Nancy Kiesel, D.D.S.Kensington, MD 208951922163393
- Richard Orenstein, D.D.S.Kensington, MD 208951275744872
- Jennifer Tipograph, D.D.S.Kensington, MD 208951831535640
- Jay Yi, DDSKensington, MD 208951891815338
Common questions
What is Mark St. George, D.D.S.'s NPI number?
Mark St. George, D.D.S.'s National Provider Identifier (NPI) is 1619994282, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark St. George, D.D.S. located?
The NPPES record lists a practice address at 10128 Cedar LN, Kensington, MD, 20895. Phone: (301) 530-2772. Providers update this record themselves, so call before visiting.
How can I verify Mark St. George, D.D.S.'s license?
NPPES lists Maryland license number 9312, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Mark St. George, D.D.S. prescribe under Medicare Part D?
In 2024, Mark St. George, D.D.S. had 15 Medicare Part D claims for 11 beneficiaries; the average among general practice dentistry prescribers was 83. 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.