NPPES file of Aug 9, 2026

Jason Paul Hieronimus, DDS

Dentist · Oakland, MD

Jason Paul Hieronimus, DDS is a dentist with a practice address in Oakland, Maryland, and NPI 1942370846, issued on Nov 8, 2006. Check the license with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942370846
Name
Jason Paul Hieronimus
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
3629 WV
Self-reported in NPPES; status is on the state search
Practice location
1025 Memorial Drive, Oakland, MD 21550
Phone
(301) 334-7660
Enumerated
Nov 8, 2006
Record last updated
Nov 19, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(301) 334-7661
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Jason Paul Hieronimus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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58% fewer Medicare Part D claims than the average dentist in 2024

36 Medicare Part D claims for 28 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Jason Hieronimus36
  2. Specialty average86

Most prescribed

  1. Penicillin V Potassium12 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.

Jason Paul Hieronimus among 1,870 dentist records in Maryland

Jason Paul Hieronimus, DDS is one of 1,870 dentist records with a practice address in Maryland. 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 80% 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 updated2014 · 69% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dentist providers in Maryland

There are 1,870 dentist records in Maryland.

The 8 dentist records with the nearest ZIP codes

  1. George Hazelwood, DDSOakland, MD 215501538261961
  2. Terry Dornburg, DDSGrantsville, MD 215361003817677
  3. Holly Sisler, D.D.SGrantsville, MD 215361316397722
  4. Gene Clem, DDSFrostburg, MD 215321427342328
  5. Qinzhuola Qi, DDSFrostburg, MD 215321144887886
  6. Gretchen Seibert, D.D.S.Frostburg, MD 215321528277522
  7. Thomas Gregory, DDS, PHDAccident, MD 215201972624278
  8. Alivia Absher, DDSCumberland, MD 215021699252718

Common questions

What is Jason Paul Hieronimus, DDS's NPI number?

Jason Paul Hieronimus, DDS's National Provider Identifier (NPI) is 1942370846, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jason Paul Hieronimus, DDS located?

The NPPES record lists a practice address at 1025 Memorial Drive, Oakland, MD, 21550. Phone: (301) 334-7660. Providers update this record themselves, so call before visiting.

How can I verify Jason Paul Hieronimus, DDS's license?

Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Jason Paul Hieronimus, DDS prescribe under Medicare Part D?

In 2024, Jason Paul Hieronimus, DDS had 36 Medicare Part D claims for 28 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.