Dr. Thomas S. Messer Jr., MD
- Medicare services, 2018
- 74
- Part D claims, 2018
- 1,932
- Industry payments
- $918
- Affiliated sites
- 2
- Medical groups
- 3
- Practice address
- 415 S 28th Ave Fl 1 Fl 1, Hattiesburg, MS 39401-7246
- Practice phone
- Call (601) 579-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Family Medicine Residency Clinic
Multi-specialty group site · Hattiesburg, Mississippi
Find Dr. Messer'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 S. Messer Jr. is a cardiologist in Hattiesburg, Mississippi
Dr. Messer practices at Family Medicine Residency Clinic in Hattiesburg, Mississippi.
Dr. Messer's NPI, 1639284888, was assigned on August 20, 2006. Dr. Messer holds Mississippi license 09469.
- NPI
- 1639284888NPI Registry (opens in a new tab)
- NPI enumeration date
- August 20, 2006
- NPI status
- Active
- Practice phone
- (601) 579-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas S. Messer Jr. practices at Family Medicine Residency Clinic in Hattiesburg, Mississippi
Dr. Messer's primary practice is Family Medicine Residency Clinic, at 415 S 28th Ave Fl 1 Fl 1, Hattiesburg, MS 39401-7246. The practice phone is (601) 579-3300.
- Family Medicine Residency Clinic415 S 28th Ave Fl 1 Fl 1, Hattiesburg, MS 39401-7246Phone(601) 579-3300
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas S. Messer Jr. is affiliated with 2 sites of care and 3 medical groups
Dr. Messer's primary practice is Family Medicine Residency Clinic in Hattiesburg, Mississippi. The medical group on file is Forrest General Hospital. Dmand AI also links Dr. Messer to 2 more medical groups and 1 ambulatory surgery center, each 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 S. Messer Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Messer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Family Medicine Residency Clinic | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas S. Messer Jr. is one of 129 cardiologists in Mississippi
Cardiovascular disease is Dr. Messer's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Messer is licensed in Mississippi.
Specialties and state licenses
- Cardiovascular disease, MississippiPrimary
Cardiologists near Dr. Messer
Counts of cardiologists 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 S. Messer Jr. billed Medicare for 74 services in 2018
CMS data shows 74 Medicare services from Dr. Messer across 2 procedure codes in 2018. Medicare paid $675 for them. Every service was in an office.
Dr. Messer's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 1,4562018: 4097%
- Tests and treatments
- 2017: 1,9292018: 3498%
- Drugs given in the office
- 2017: 1,4132018: 0100%
- Imaging
- 2017: 5582018: 0100%
- Other services
- 2017: 13,8702018: 0100%
- Surgery
- 2017: 852018: 0100%
Dr. Messer compared with the Mississippi median for cardiologists, 2018
- Dr. Messer
- Mississippi median
- Medicare services
- 74vs 2,92597% below
- Part D claims
- 1,932vs 2,61226% below
Medians across 130 cardiologists in Mississippi with Dmand AI profiles that report each measure.
Dr. Messer's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Messer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Messer and other cardiologists in Mississippi.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas S. Messer Jr.'s patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Messer's median patient age at 63, with 0% women.
Dr. Messer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Thomas S. Messer Jr. wrote 1,932 Medicare Part D claims in 2018
In 2018, Dr. Messer wrote 1,932 Medicare Part D claims. They cover 27 drugs, with $120,209 in total drug cost. In 2017, CMS named 6,267 claims across 54 drugs.
Dr. Messer's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 6,2672018: 1,93269%
Drugs named by CMS: 27 in 2018, 54 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Thomas S. Messer Jr. received $918 in industry payments from 2016 to 2017
CMS Open Payments shows 63 general payments to Dr. Messer from 19 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $168.
General payments to Dr. Messer by program year, 2016 to 2017
Companies that paid Dr. Messer the most, 2016 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 S. Messer Jr.'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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| 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 S. Messer Jr.
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 S. Messer Jr.'s NPI number?
Dr. Thomas S. Messer Jr.'s NPI number is 1639284888. It was assigned on August 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas S. Messer Jr.?
Dr. Thomas S. Messer Jr. is a cardiologist in Hattiesburg, Mississippi. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Thomas S. Messer Jr. practice?
Dr. Messer practices at 415 S 28th Ave Fl 1 Fl 1, Hattiesburg, MS 39401-7246. Dr. Messer's primary practice is Family Medicine Residency Clinic in Hattiesburg, Mississippi. Dmand AI also links Dr. Messer to 2 medical groups and 1 ambulatory surgery center.
What is Dr. Thomas S. Messer Jr.'s office phone number?
The practice phone on file for Dr. Messer is (601) 579-3300.
What is Dr. Thomas S. Messer Jr.'s medical license number?
Dr. Messer holds Mississippi license 09469.
What medical group is Dr. Thomas S. Messer Jr. part of?
Dr. Messer is linked to Forrest General Hospital. Dmand AI links Dr. Messer to 2 more medical groups.
Does Dr. Thomas S. Messer Jr. accept Medicare?
Yes. CMS data shows Dr. Messer billed Medicare for 74 services in 2018.
What services does Dr. Thomas S. Messer Jr. bill to Medicare?
In 2018, Dr. Messer's most billed Medicare services were office visit, established patient (99214) and heart test or procedure (93000).
What drugs does Dr. Thomas S. Messer Jr. prescribe most?
In 2018 Medicare Part D data, Dr. Messer's most prescribed drugs by claims were Pravastatin Sodium, Atorvastatin Calcium and Metoprolol Tartrate.
Has Dr. Thomas S. Messer Jr. received payments from drug or device companies?
CMS Open Payments shows $918 in general payments to Dr. Messer from 19 companies from 2016 to 2017. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Thomas S. Messer Jr. been practicing?
Dr. Messer's NPI was assigned in 2006.
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