NPPES file of Aug 9, 2026

Orville John, D.D.S.

Dentist · La Plata, MD

Orville John, D.D.S. is a dentist with a practice address in La Plata, Maryland, and NPI 1912301201, issued on Oct 15, 2014. Check the license (Maryland 7066, as entered in NPPES) 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
1912301201
Name
Orville John
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License numbers
7066 MD
3614 DC
Self-reported in NPPES; status is on the state search
Practice location
6620 Crain Hwy, La Plata, MD 20646
Phone
(301) 870-3966
Enumerated
Oct 15, 2014
Record last updated
Oct 15, 2014 (not updated in 12 years: call before relying on the address or phone)
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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Also registered at 6620 Crain Hwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Demion Cornwall, DDSGeneral Practice Dentistry1982965711
  2. Ghassan Hatoum, MDGeneral Practice Physician1730226440
  3. Ibrahim Mady, MDGeneral Practice Physician1629115332

Verify Orville John in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 7066
    Check 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
Find the Maryland license search

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22% fewer Medicare Part D claims than the average dentist in 2024

67 Medicare Part D claims for 38 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. Orville John67
  2. Specialty average86

Most prescribed

  1. Amoxicillin41 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.

Orville John among 1,870 dentist records in Maryland

Orville John, D.D.S. 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 2014, is newer than 64% of them.

  • NPI issued2014 · 64% of these records are older, 33% 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).

8 dentist records list a practice address in La Plata

They are 8 of the 462 NPPES records with a practice address in La Plata, and 1,870 dentist records in Maryland.

The 8 dentist records with the nearest ZIP codes

  1. Fazil Alie, DDSLa Plata, MD 206461942424676
  2. Harika Chadive, DDSLa Plata, MD 206461144726720
  3. Patrick Cieplak, DDSLa Plata, MD 206461356552699
  4. Melissa Lee, DDSLa Plata, MD 206461982254975
  5. Michelle Tolbert, D.D.S.La Plata, MD 206461891037750
  6. John Wilhelm, D.D.SLa Plata, MD 206461851665160
  7. John Wilhelm, DDSLa Plata, MD 206461245757426
  8. Martin Barley, DDS PC MAGDLeonardtown, MD 206501144232653

Common questions

What is Orville John, D.D.S.'s NPI number?

Orville John, D.D.S.'s National Provider Identifier (NPI) is 1912301201, issued on Oct 15, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Orville John, D.D.S. located?

The NPPES record lists a practice address at 6620 Crain Hwy, La Plata, MD, 20646. Phone: (301) 870-3966. Providers update this record themselves, so call before visiting.

How can I verify Orville John, D.D.S.'s license?

NPPES lists Maryland license number 7066, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Orville John, D.D.S. prescribe under Medicare Part D?

In 2024, Orville John, D.D.S. had 67 Medicare Part D claims for 38 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.