NPPES file of Aug 9, 2026

Thomas Ralph Callihan, MD

Anatomic Pathology Physician · Germantown, TN

Thomas Ralph Callihan, MD is an anatomic pathology physician with a practice address in Germantown, Tennessee, and NPI 1700810264, issued on Jul 10, 2006. Check the license (Tennessee MD0000012403, as entered in NPPES) on the Tennessee Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1700810264
Name
Thomas Ralph Callihan
Credential
MD
Primary taxonomy
Anatomic Pathology Physician 207ZP0101X
License number
MD0000012403 TN
Self-reported in NPPES; status is on the state search
Practice location
7550 Wolf River Blvd, Germantown, TN 38138
Phone
(901) 542-6801
Enumerated
Jul 10, 2006
Record last updated
Dec 9, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(901) 542-6871
Medicaid IDs
202438179 MO
3031624 TN
113804001 AR
0010000 MS
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 7550 Wolf River Blvd

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

  1. Heather Baldwin, MDAnatomic Pathology & Clinical Pathology Physician1235124363
  2. Michael Bugg, MDAnatomic Pathology Physician1134153703
  3. Carolyn Chesney, MDHematology (Pathology) Physician1720012297
  4. Thomas Chesney, MDAnatomic Pathology Physician1699709162
  5. George Chu, M.D.Internal Medicine Physician1467562678
  6. Kenneth Groshart, MDAnatomic Pathology Physician1730119819

Verify Thomas Ralph Callihan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license MD0000012403
    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
Open the Tennessee license search

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Anatomic Pathology Physician providers in Tennessee

There are 65 anatomic pathology physician records in Tennessee. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other anatomic pathology physician records in Tennessee

  1. Anas Alabkaa, MDNashville, TN1063072668
  2. Evan Alston, M.D.Murfreesboro, TN1023336872
  3. Menaka Ambarishan, MBBSNashville, TN1124874490
  4. Billy Ballard, M.D.Nashville, TN1376521518
  5. Karin Berg, MDMemphis, TN1740220953
  6. Julia Berry, M.D.Nashville, TN1356738058
  7. Michael Bugg, MDGermantown, TN1134153703
  8. Ryan Campbell, M.D.Memphis, TN1700240082
  9. Justin Cates, MD, PHDNashville, TN1780768895
  10. Sairam Chattu, MDNashville, TN1245856798

Common questions

What is Thomas Ralph Callihan, MD's NPI number?

Thomas Ralph Callihan, MD's National Provider Identifier (NPI) is 1700810264, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Ralph Callihan, MD located?

The NPPES record lists a practice address at 7550 Wolf River Blvd, Germantown, TN, 38138. Phone: (901) 542-6801. Providers update this record themselves, so call before visiting.

How can I verify Thomas Ralph Callihan, MD's license?

NPPES lists Tennessee license number MD0000012403, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.