NPPES file of Aug 9, 2026

John Preston Grimes, DDS

Dentist · Hanover, PA

John Preston Grimes, DDS is a dentist with a practice address in Hanover, Pennsylvania, and NPI 1114260569, issued on Apr 4, 2013. Check the license (Pennsylvania DS028951L, as entered in NPPES) with the Pennsylvania 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
1114260569
Name
John Preston Grimes
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
DS028951L PA
Self-reported in NPPES; status is on the state search
Practice location
420 W Elm Ave, Hanover, PA 17331
Phone
(717) 632-4164
Enumerated
Apr 4, 2013
Record last updated
Apr 4, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(717) 632-8987
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 420 W Elm Ave

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

  1. Michael Fink, DDSDentist1689917031
  2. Rachel Kaplan, DDSDentist1154708733
  3. Max Safran, DMDDentist1780208256

Verify John Preston Grimes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license DS028951L
    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 Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.2 times the Medicare Part D claims of the average dentist in 2024

188 Medicare Part D claims for 136 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. John Grimes188
  2. Specialty average86

Most prescribed

  1. Amoxicillin142 claims
  2. Clindamycin Hcl20 claims
  3. Azithromycin18 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.

John Preston Grimes among 3,339 dentist records in Pennsylvania

John Preston Grimes, DDS is one of 3,339 dentist records with a practice address in Pennsylvania. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 60% of them.

  • NPI issued2013 · 60% of these records are older, 36% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2013 · 74% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 dentist records list a practice address in Hanover

They are 17 of the 804 NPPES records with a practice address in Hanover, and 3,339 dentist records in Pennsylvania.

The 8 dentist records with the nearest ZIP codes

  1. Michael Fink, DDSHanover, PA 173311689917031
  2. Ebrahim GaibieHanover, PA 173311740617281
  3. Terry Gordon, DDSHanover, PA 173311821058314
  4. Ralph Hoffacker, DDSHanover, PA 173311932202512
  5. Henry Hoffacker, DDSHanover, PA 173311134548845
  6. Rachel Kaplan, DDSHanover, PA 173311154708733
  7. Eric KleinHanover, PA 173311124517040
  8. Omeir Mallick, DDSHanover, PA 173311376165928

Common questions

What is John Preston Grimes, DDS's NPI number?

John Preston Grimes, DDS's National Provider Identifier (NPI) is 1114260569, issued on Apr 4, 2013. An NPI identifies a provider in billing; it is not a license.

Where is John Preston Grimes, DDS located?

The NPPES record lists a practice address at 420 W Elm Ave, Hanover, PA, 17331. Phone: (717) 632-4164. Providers update this record themselves, so call before visiting.

How can I verify John Preston Grimes, DDS's license?

NPPES lists Pennsylvania license number DS028951L, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does John Preston Grimes, DDS prescribe under Medicare Part D?

In 2024, John Preston Grimes, DDS had 188 Medicare Part D claims for 136 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.