NPPES file of Aug 9, 2026

William Robert Callahan, D.D.S.

General Practice Dentistry · Memphis, TN

William Robert Callahan, D.D.S. is a general practice dentistry with a practice address in Memphis, Tennessee, and NPI 1023187028, issued on Nov 6, 2006. Check the license (Tennessee DS4327, as entered in NPPES) with the Tennessee 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
1023187028
Name
William Robert Callahan
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
DS4327 TN
Self-reported in NPPES; status is on the state search
Practice location
813 Ridge Lake Blvd, Memphis, TN 38120
Phone
(901) 761-3456
Enumerated
Nov 6, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(901) 761-3476
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 William Robert Callahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license DS4327
    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 Tennessee license search

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Industry payments in 2024: $17.98

1 payment: food and beverage; the largest payer was Dentsply Sirona Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Callahan$17.98
  2. Specialty average$597.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

William Robert Callahan among 2,023 general practice dentistry records in Tennessee

William Robert Callahan, D.D.S. is one of 2,023 general practice dentistry records with a practice address in Tennessee. 68% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 60% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 70% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

211 general practice dentistry records list a practice address in Memphis

They are 211 of the 12,794 NPPES records with a practice address in Memphis, and 2,023 general practice dentistry records in Tennessee.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Hilary Baer, DDSMemphis, TN 381201609074798
  2. Jennifer Cochran, DDSMemphis, TN 381201831257088
  3. Brooke Dishmon, D.D.S.Memphis, TN 381201821273913
  4. Robert Gardino, DDSMemphis, TN 381201598837908
  5. Lawrence Higginbotham, D.D.S.Memphis, TN 381201922262435
  6. Goodloe Keltner, D.D.S.Memphis, TN 381201760520241
  7. Elizabeth Mitchell, D.D.S.Memphis, TN 381201770711384
  8. James Proctor, D.D.S.Memphis, TN 381201225168925

Common questions

What is William Robert Callahan, D.D.S.'s NPI number?

William Robert Callahan, D.D.S.'s National Provider Identifier (NPI) is 1023187028, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Robert Callahan, D.D.S. located?

The NPPES record lists a practice address at 813 Ridge Lake Blvd, Memphis, TN, 38120. Phone: (901) 761-3456. Providers update this record themselves, so call before visiting.

How can I verify William Robert Callahan, D.D.S.'s license?

NPPES lists Tennessee license number DS4327, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity 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.