Irving Fitzroy Mason, D.M.D.
General Practice Dentistry · Baltimore, MD
Irving Fitzroy Mason, D.M.D. is a general practice dentistry with a practice address in Baltimore, Maryland, and NPI 1578587994, issued on Jul 27, 2006. Check the license (Maryland 10833, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Irving Fitzroy Mason
- Credential
- D.M.D.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 10833 MD
Self-reported in NPPES; status is on the state search - Practice location
- 3343 Belair RD, Baltimore, MD 21213
- Phone
- (410) 276-1535
- Enumerated
- Jul 27, 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 Irving Fitzroy Mason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 10833Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average general practice dentistry in 2024
43 Medicare Part D claims for 19 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin18 claims
- Ibuprofen14 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.
Irving Fitzroy Mason among 2,408 general practice dentistry records in Maryland
Irving Fitzroy Mason, D.M.D. 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).
General Practice Dentistry providers in Maryland
There are 2,408 general practice dentistry records in Maryland.
All 2,408 in Maryland → Every provider in Baltimore → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Maurice Blakely, D.D.S.Baltimore, MD 212131932388600
- Cassandra Burnett, D.D.S.Baltimore, MD 212131629069125
- Iris Chan, DDSBaltimore, MD 212131669735775
- Kathy FrancisBaltimore, MD 212131386164762
- Priya Grewal, DDSBaltimore, MD 212131487860862
- Marlon Hanley, D.D.S.Baltimore, MD 212131588083802
- Youngchul KimBaltimore, MD 212131629384987
- Jay McEachernBaltimore, MD 212131295873818
Common questions
What is Irving Fitzroy Mason, D.M.D.'s NPI number?
Irving Fitzroy Mason, D.M.D.'s National Provider Identifier (NPI) is 1578587994, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Irving Fitzroy Mason, D.M.D. located?
The NPPES record lists a practice address at 3343 Belair RD, Baltimore, MD, 21213. Phone: (410) 276-1535. Providers update this record themselves, so call before visiting.
How can I verify Irving Fitzroy Mason, D.M.D.'s license?
NPPES lists Maryland license number 10833, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Irving Fitzroy Mason, D.M.D. prescribe under Medicare Part D?
In 2024, Irving Fitzroy Mason, D.M.D. had 43 Medicare Part D claims for 19 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.