NPPES file of Aug 9, 2026

Terry Ryan Williams, DDS

General Practice Dentistry · Harrisburg, PA

Terry Ryan Williams, DDS is a general practice dentistry with a practice address in Harrisburg, Pennsylvania, and NPI 1265775399, issued on Mar 27, 2013. Check the license (Pennsylvania DS039892, 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
1265775399
Name
Terry Ryan Williams
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
DS039892 PA
Self-reported in NPPES; status is on the state search
Practice location
4129 Locust LN, Harrisburg, PA 17109
Phone
(717) 657-3326
Enumerated
Mar 27, 2013
Record last updated
Aug 23, 2019 (not updated in 7 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 4129 Locust LN

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

  1. Peter Friedman, DMDDentist1902961154
  2. Steven Grater, D.M.D.General Practice Dentistry1093871048
  3. Matthew Sandusky, DDSGeneral Practice Dentistry1871082651
  4. Zachary Sisler, D.D.S.General Practice Dentistry1861712135

Verify Terry Ryan Williams 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 DS039892
    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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36% fewer Medicare Part D claims than the average general practice dentistry in 2024

53 Medicare Part D claims for 38 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Terry Williams53
  2. Specialty average83

Most prescribed

  1. Amoxicillin18 claims
  2. Amoxicillin-Clavulanate Potass11 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.

Terry Ryan Williams among 4,612 general practice dentistry records in Pennsylvania

Terry Ryan Williams, DDS is one of 4,612 general practice dentistry 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 74% of them.

  • NPI issued2013 · 74% of these records are older, 25% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2019 · 76% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

81 general practice dentistry records list a practice address in Harrisburg

They are 81 of the 3,963 NPPES records with a practice address in Harrisburg, and 4,612 general practice dentistry records in Pennsylvania.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Joan Brandt, DMDHarrisburg, PA 171091417037037
  2. Robert Cosgriff, DDS.Harrisburg, PA 171091619973849
  3. Charles Fetterhoff, DMDHarrisburg, PA 171091508984501
  4. Becky Fox, D.M.D.Harrisburg, PA 171091407876030
  5. Clifferd Fried, DDSHarrisburg, PA 171091568562692
  6. Jirard Gerber, DMDHarrisburg, PA 171091689681330
  7. Steven Grater, D.M.D.Harrisburg, PA 171091093871048
  8. Keric Hockenberry, DMDHarrisburg, PA 171091457364051

Common questions

What is Terry Ryan Williams, DDS's NPI number?

Terry Ryan Williams, DDS's National Provider Identifier (NPI) is 1265775399, issued on Mar 27, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Terry Ryan Williams, DDS located?

The NPPES record lists a practice address at 4129 Locust LN, Harrisburg, PA, 17109. Phone: (717) 657-3326. Providers update this record themselves, so call before visiting.

How can I verify Terry Ryan Williams, DDS's license?

NPPES lists Pennsylvania license number DS039892, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Terry Ryan Williams, DDS prescribe under Medicare Part D?

In 2024, Terry Ryan Williams, DDS had 53 Medicare Part D claims for 38 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.