Dr. Thomas Ralph Callihan, MD
- Medicare services, 2017
- 389
- Industry payments
- $122
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 7550 Wolf River Blvd, Germantown, TN 38138-1780
- Practice phone
- Call (901) 542-6801
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pgm Pathology Group Of The Midsouth
Medical specialty practice · Germantown, Tennessee
Find Dr. Callihan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Thomas Ralph Callihan is a pathologist in Germantown, Tennessee
Dr. Callihan practices at Pgm Pathology Group Of The Midsouth in Germantown, Tennessee.
Dr. Callihan's NPI, 1700810264, was assigned on July 10, 2006. Dr. Callihan holds Tennessee license MD0000012403.
- NPI
- 1700810264NPI Registry (opens in a new tab)
- NPI enumeration date
- July 10, 2006
- NPI status
- Active
- Practice phone
- (901) 542-6801
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas Ralph Callihan practices at Pgm Pathology Group of the Midsouth in Germantown, Tennessee
Dr. Callihan's primary practice is Pgm Pathology Group of the Midsouth, at 7550 Wolf River Blvd, Germantown, TN 38138-1780. The practice phone is (901) 542-6801.
- Pgm Pathology Group of the Midsouth7550 Wolf River Blvd, Germantown, TN 38138-1780Phone(901) 542-6801
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas Ralph Callihan is affiliated with 1 site of care and 1 medical group
Dr. Callihan's primary practice is Pgm Pathology Group Of The Midsouth in Germantown, Tennessee. Dmand AI also links Dr. Callihan to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Thomas Ralph Callihan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callihan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pgm Pathology Group Of The Midsouth | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas Ralph Callihan is one of 47 pathologists in Tennessee
Anatomic pathology is Dr. Callihan's primary specialty in the NPI Registry, under taxonomy code 207ZP0101X. Dr. Callihan is licensed in Tennessee.
Specialties and state licenses
- Anatomic pathology, TennesseePrimary
Pathologists near Dr. Callihan
Counts of pathologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas Ralph Callihan billed Medicare for 389 services in 2017
CMS data shows 389 Medicare services from Dr. Callihan across 8 procedure codes in 2017. Medicare paid $10,832 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Callihan's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Lab and pathology
- 2016: 1,0092017: 38961%
Dr. Callihan compared with the Tennessee median for pathologists, 2017
- Dr. Callihan
- Tennessee median
- Medicare services
- 389vs 69744% below
Medians across 32 pathologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Callihan's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Callihan and other pathologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
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Dr. Thomas Ralph Callihan received $122 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Callihan from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $122.
Companies that paid Dr. Callihan the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Thomas Ralph Callihan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thomas Ralph Callihan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Thomas Ralph Callihan's NPI number?
Dr. Thomas Ralph Callihan's NPI number is 1700810264. It was assigned on July 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Ralph Callihan?
Dr. Thomas Ralph Callihan is a pathologist in Germantown, Tennessee. The primary specialty in the NPI Registry is Anatomic Pathology Physician (taxonomy code 207ZP0101X).
Where does Dr. Thomas Ralph Callihan practice?
Dr. Callihan practices at 7550 Wolf River Blvd, Germantown, TN 38138-1780. Dr. Callihan's primary practice is Pgm Pathology Group Of The Midsouth in Germantown, Tennessee. Dmand AI also links Dr. Callihan to 1 medical group.
What is Dr. Thomas Ralph Callihan's office phone number?
The practice phone on file for Dr. Callihan is (901) 542-6801.
What is Dr. Thomas Ralph Callihan's medical license number?
Dr. Callihan holds Tennessee license MD0000012403.
Does Dr. Thomas Ralph Callihan accept Medicare?
Yes. CMS data shows Dr. Callihan billed Medicare for 389 services in 2017.
What services does Dr. Thomas Ralph Callihan bill to Medicare?
In 2017, Dr. Callihan's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88313) and lab and pathology test (88189).
Has Dr. Thomas Ralph Callihan received payments from drug or device companies?
CMS Open Payments shows $122 in general payments to Dr. Callihan from 1 company from 2017 to 2017. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Thomas Ralph Callihan been practicing?
Dr. Callihan's NPI was assigned in 2006.
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