Dr. Thomas Gary Dallman, MD
- Medicare services, 2023
- 33
- Part D claims, 2024
- 563
- Hospital affiliations
- 1
- Industry payments
- $209
- State license
- 1
- Practice address
- 101 Civic Center Lane, Lake Havasu City, AZ 86403
- Practice phone
- Call (928) 855-8185
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Dallman'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 Gary Dallman is an internist in Lake Havasu City, Arizona
Dr. Dallman practices at Havasu Regional Medical Center in Lake Havasu City, Arizona, part of Lifepoint Health.
Dr. Dallman's NPI, 1568643757, was assigned on November 16, 2007. Dr. Dallman graduated from Medical College of Wisconsin in 1983. Dr. Dallman holds Arizona license 16390.
- NPI
- 1568643757NPI Registry (opens in a new tab)
- NPI enumeration date
- November 16, 2007
- NPI status
- Active
- Practice phone
- (928) 855-8185
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas Gary Dallman practices at Havasu Regional Medical Center in Lake Havasu City, Arizona
Dr. Dallman's primary practice is Havasu Regional Medical Center, at 101 Civic Center Lane, Lake Havasu City, AZ 86403 in Mohave County. The practice phone is (928) 855-8185.
- Havasu Regional Medical Center101 Civic Center Lane, Lake Havasu City, AZ 86403 · Mohave CountyPhone(928) 855-8185
Source: Dmand AI Affiliation Data
Dr. Thomas Gary Dallman is affiliated with 2 sites of care
Dr. Dallman's primary practice is Havasu Regional Medical Center in Lake Havasu City, Arizona, part of Lifepoint Health. Dmand AI also links Dr. Dallman to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas Gary Dallman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dallman practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Havasu Regional Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Lifepoint Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Thomas Gary Dallman is one of 2,420 internists in Arizona
Internal medicine is Dr. Dallman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Dallman is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Dallman
Counts of internists 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 Gary Dallman billed Medicare for 33 services in 2023
CMS data shows 33 Medicare services from Dr. Dallman across 1 procedure code in 2023, all of them office visits. Medicare paid $660 for them. Every service was in an office.
Dr. Dallman's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 3602023: 3391%
- Tests and treatments
- 2022: 822023: 0100%
- Other services
- 2022: 852023: 0100%
Dr. Dallman compared with the Arizona median for internists, 2023
- Dr. Dallman
- Arizona median
- Medicare services
- 33vs 47693% below
- Part D claims
- 252vs 260Close to median
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Dallman's most billed Medicare procedure codes, 2023
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. Dallman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dallman and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas Gary Dallman's patients have a median age of 80
Across all payers, Dmand AI patient panel data puts Dr. Dallman's median patient age at 80, with 57% women.
Dr. Dallman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Thomas Gary Dallman wrote 563 Medicare Part D claims in 2024
In 2024, Dr. Dallman wrote 563 Medicare Part D claims for 136 patients. 89% of them were for generic drugs. CMS names the drug for 252 of them, across 15 drugs with 11 or more claims each, at $17,392 in total drug cost. In 2023, CMS named 2,363 claims across 64 drugs.
Dr. Dallman's Part D claims by kind of drug, 2024
- Generic499 claims89%
- Brand-name and other64 claims11%
Dr. Dallman's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,3632024: 25289%
Drugs named by CMS: 15 in 2024, 64 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Thomas Gary Dallman received $209 in industry payments from 2016 to 2023
CMS Open Payments shows 10 general payments to Dr. Dallman from 6 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Nevro Corp. paid the most, $78.
General payments to Dr. Dallman by program year, 2016 to 2023
Companies that paid Dr. Dallman the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas Gary Dallman graduated from Medical College of Wisconsin
Dr. Dallman graduated from Medical College of Wisconsin in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas Gary Dallman'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 Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Gary Dallman
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 Gary Dallman's NPI number?
Dr. Thomas Gary Dallman's NPI number is 1568643757. It was assigned on November 16, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Gary Dallman?
Dr. Thomas Gary Dallman is an internist in Lake Havasu City, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Thomas Gary Dallman practice?
Dr. Dallman practices at 101 Civic Center Lane, Lake Havasu City, AZ 86403. Dr. Dallman's primary practice is Havasu Regional Medical Center in Lake Havasu City, Arizona, part of Lifepoint Health. Dmand AI also links Dr. Dallman to 1 physician office.
What is Dr. Thomas Gary Dallman's office phone number?
The practice phone on file for Dr. Dallman is (928) 855-8185.
What is Dr. Thomas Gary Dallman's medical license number?
Dr. Dallman holds Arizona license 16390.
Which hospitals is Dr. Thomas Gary Dallman affiliated with?
Dr. Dallman practices at Havasu Regional Medical Center in Lake Havasu City, Arizona.
Does Dr. Thomas Gary Dallman accept Medicare?
Yes. CMS data shows Dr. Dallman billed Medicare for 33 services in 2023.
What services does Dr. Thomas Gary Dallman bill to Medicare?
In 2023, Dr. Dallman's most billed Medicare services were office visit, established patient (99212).
Where did Dr. Thomas Gary Dallman go to medical school?
Dr. Dallman graduated from Medical College of Wisconsin in 1983.
What drugs does Dr. Thomas Gary Dallman prescribe most?
In 2024 Medicare Part D data, Dr. Dallman's most prescribed drugs by claims were Levothyroxine Sodium, Tamsulosin HCl and Atorvastatin Calcium.
Has Dr. Thomas Gary Dallman received payments from drug or device companies?
CMS Open Payments shows $209 in general payments to Dr. Dallman from 6 companies from 2016 to 2023. The largest total came from Nevro Corp.
How long has Dr. Thomas Gary Dallman been practicing?
Dr. Dallman graduated from medical school in 1983, 43 years ago.
Selling to internal medicine practices?
See internists in Arizona by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card