Dr. Thomas Mitchell Gallagher, MD
- Medicare services, 2024
- 47
- Medicare patients, 2024
- 88
- Part D claims, 2024
- 177
- Publications
- 1
- MIPS score, 2024
- 92
- Practice address
- 1144 N 28th St, Billings, MT 59101
- Practice phone
- Call (406) 237-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yellowstone Surgery Center
Surgery Center - Medicare-Certified · Billings, Montana
Find Dr. Gallagher's professional email, personal email and mobile number
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Dr. Thomas Mitchell Gallagher is a plastic and reconstructive surgery physician in Billings, Montana
Dr. Gallagher practices at Yellowstone Surgery Center in Billings, Montana.
Dr. Gallagher's NPI, 1043604945, was assigned on March 27, 2015. Dr. Gallagher graduated from University of Washington School of Medicine in 2015. Dr. Gallagher holds Montana license MED-PHYS-LIC-95952.
- NPI
- 1043604945NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921314873
- NPI enumeration date
- March 27, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (406) 237-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas Mitchell Gallagher practices at Yellowstone Surgery Center in Billings, Montana
Dr. Gallagher's primary practice is Yellowstone Surgery Center, at 1144 N 28th St, Billings, MT 59101. The practice phone is (406) 237-5900.
- Yellowstone Surgery Center1144 N 28th St, Billings, MT 59101Phone(406) 237-5900
Source: Dmand AI Affiliation Data
Dr. Thomas Mitchell Gallagher is affiliated with 4 sites of care and 1 medical group
Dr. Gallagher's primary practice is Yellowstone Surgery Center in Billings, Montana. Dr. Gallagher is also affiliated with Billings Clinic Hospital. The medical group on file is Yellowstone Plastic Surgery. Dmand AI also links Dr. Gallagher to 1 more hospital and 1 group practice or clinic, each 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 Mitchell Gallagher's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gallagher practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yellowstone Surgery Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas Mitchell Gallagher is one of 12 plastics and reconstructive surgery physicians in Montana
Plastic and reconstructive surgery is Dr. Gallagher's primary specialty in the NPI Registry, under taxonomy code 2086S0122X. Dr. Gallagher is licensed in Montana.
Specialties and state licenses
- Plastic and reconstructive surgery, MontanaPrimary
Plastics and reconstructive surgery physicians near Dr. Gallagher
Counts of plastics and reconstructive surgery physicians 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 Mitchell Gallagher billed Medicare for 47 services in 2024
CMS data shows 47 Medicare services from Dr. Gallagher across 2 procedure codes in 2024, all of them office visits, for 88 Medicare patients. Medicare paid $6,663 for them. Every service was in an office.
Dr. Gallagher's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 402024: 4718%
Dr. Gallagher compared with the Montana median for plastics and reconstructive surgery physicians, 2024
- Dr. Gallagher
- Montana median
- Medicare services
- 47vs 506% below
- Part D claims
- 129vs 129Close to median
Medians across 13 plastics and reconstructive surgery physicians in Montana with Dmand AI profiles that report each measure.
Dr. Gallagher's most billed Medicare procedure codes, 2024
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. Gallagher and other plastics and reconstructive surgery physicians in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas Mitchell Gallagher treated 88 Medicare patients in 2024, average age 72
CMS counts 88 Medicare patients who saw Dr. Gallagher in 2024. The largest group is 65 to 74, with 47 patients. 66% of them have high blood pressure, and 60% have high cholesterol. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gallagher's median patient age at 62, with 82% women.
Dr. Gallagher's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Gallagher's Medicare patients by sex, 2024
- Women5259%
- Men3641%
Chronic conditions among Dr. Gallagher's Medicare patients, 2024
- High blood pressure66%
- High cholesterol60%
- Arthritis36%
- Cancer34%
- Mood disorders27%
- Depression26%
- Diabetes25%
- Anxiety19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gallagher's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women82%
- Men18%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas Mitchell Gallagher wrote 177 Medicare Part D claims in 2024
In 2024, Dr. Gallagher wrote 177 Medicare Part D claims for 60 patients. 91% of them were for generic drugs. CMS names the drug for 129 of them, across 6 drugs with 11 or more claims each, at $1,398 in total drug cost. In 2023, CMS named 159 claims across 6 drugs.
Dr. Gallagher's Part D claims by kind of drug, 2024
- Generic161 claims91%
- Brand-name16 claims9%
Dr. Gallagher'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.
Drug classes CMS tracks in Dr. Gallagher's Part D claims, 2024
- Opioids19%34 of 177 claims
- Antibiotics13%23 of 177 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1592024: 12919%
Drugs named by CMS: 6 in 2024, 6 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
Dr. Thomas Mitchell Gallagher scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Gallagher for performance year 2024, reported as part of a group. Dr. Gallagher accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gallagher as offering telehealth. CMS counts 15 procedures of mastectomy by Dr. Gallagher, more than 72% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Gallagher's MIPS scores, performance year 2024
- 92of 100Final score
- 83.6of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Gallagher ranks in Medicare procedure volume
- Mastectomy
- 72nd percentile15 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Thomas Mitchell Gallagher has 1 publication on record
Dmand AI links 1 paper to Dr. Gallagher.
Recent publications by Dr. Gallagher
See who Dr. Gallagher researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gallagher works with, so you can find a warm path to the right plastics and reconstructive surgery physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas Mitchell Gallagher received $1,450 in industry payments from 2021 to 2025
CMS Open Payments shows 31 general payments to Dr. Gallagher from 14 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $621.
General payments to Dr. Gallagher by program year, 2021 to 2025
Companies that paid Dr. Gallagher the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas Mitchell Gallagher graduated from University of Washington School of Medicine
Dr. Gallagher graduated from University of Washington School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas Mitchell Gallagher'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Mitchell Gallagher
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 Mitchell Gallagher's NPI number?
Dr. Thomas Mitchell Gallagher's NPI number is 1043604945. It was assigned on March 27, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Mitchell Gallagher?
Dr. Thomas Mitchell Gallagher is a plastic and reconstructive surgery physician in Billings, Montana. The primary specialty in the NPI Registry is Plastic and Reconstructive Surgery Physician (taxonomy code 2086S0122X).
Where does Dr. Thomas Mitchell Gallagher practice?
Dr. Gallagher practices at 1144 N 28th St, Billings, MT 59101. Dr. Gallagher's primary practice is Yellowstone Surgery Center in Billings, Montana. Dmand AI also links Dr. Gallagher to 1 hospital and 1 group practice or clinic.
What is Dr. Thomas Mitchell Gallagher's office phone number?
The practice phone on file for Dr. Gallagher is (406) 237-5900.
What is Dr. Thomas Mitchell Gallagher's medical license number?
Dr. Gallagher holds Montana license MED-PHYS-LIC-95952.
Which hospitals is Dr. Thomas Mitchell Gallagher affiliated with?
Dr. Gallagher is affiliated with Billings Clinic Hospital. Dmand AI links Dr. Gallagher to 1 more hospital.
What medical group is Dr. Thomas Mitchell Gallagher part of?
Dr. Gallagher is linked to Yellowstone Plastic Surgery.
Does Dr. Thomas Mitchell Gallagher accept Medicare?
Yes. CMS data shows Dr. Gallagher billed Medicare for 47 services in 2024, and Dr. Gallagher accepts Medicare assignment.
Does Dr. Thomas Mitchell Gallagher offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gallagher as offering telehealth services.
What is Dr. Thomas Mitchell Gallagher's MIPS score?
Dr. Gallagher's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Thomas Mitchell Gallagher see?
CMS counts 88 Medicare patients who saw Dr. Gallagher in 2024, with an average age of 72.
What services does Dr. Thomas Mitchell Gallagher bill to Medicare?
In 2024, Dr. Gallagher's most billed Medicare services were office visit, new patient (99204) and office visit, new patient (99205).
Where did Dr. Thomas Mitchell Gallagher go to medical school?
Dr. Gallagher graduated from University of Washington School of Medicine in 2015.
What drugs does Dr. Thomas Mitchell Gallagher prescribe most?
In 2024 Medicare Part D data, Dr. Gallagher's most prescribed drugs by claims were Gabapentin, Ondansetron ODT and Enoxaparin Sodium.
Has Dr. Thomas Mitchell Gallagher received payments from drug or device companies?
CMS Open Payments shows $1,450 in general payments to Dr. Gallagher from 14 companies from 2021 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Thomas Mitchell Gallagher been practicing?
Dr. Gallagher graduated from medical school in 2015, 11 years ago.
Does Dr. Thomas Mitchell Gallagher do research?
Dmand AI links 1 publication to Dr. Gallagher.
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