J Am Vet Med Assoc
Animals, NewbornBlood ProteinsElectrolytes
Dr. Thomas H. Welsh, MD
NPI1487604740
- Part D claims, 2024
- 175
- Publications
- 66
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1955 West Frye Road, Chandler, AZ 85224
- Practice phone
- Call (480) 728-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Welsh'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 H. Welsh is an internist in Chandler, Arizona
Dr. Welsh practices at Dignity Health Chandler Regional Medical Center in Chandler, Arizona, part of CommonSpirit Health.
Dr. Welsh's NPI, 1487604740, was assigned on May 10, 2006. Dr. Welsh holds Utah license 3082746-1205.
NPI and contact details
- NPI
- 1487604740NPI Registry (opens in a new tab)
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Practice phone
- (480) 728-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas H. Welsh practices at Dignity Health Chandler Regional Medical Center in Chandler, Arizona
Dr. Welsh's primary practice is Dignity Health Chandler Regional Medical Center, at 1955 West Frye Road, Chandler, AZ 85224 in Maricopa County. The practice phone is (480) 728-3000.
- Dignity Health Chandler Regional Medical Center1955 West Frye Road, Chandler, AZ 85224 · Maricopa CountyPhone(480) 728-3000
Source: Dmand AI Affiliation Data
Dr. Thomas H. Welsh is affiliated with 1 site of care and 1 medical group
Dr. Welsh's primary practice is Dignity Health Chandler Regional Medical Center in Chandler, Arizona, part of CommonSpirit Health. The medical group on file is Mercy Family Health Center. Dr. Welsh's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas H. Welsh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Welsh practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health Chandler Regional Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas H. Welsh is one of 2,420 internists in Arizona
Internal medicine is Dr. Welsh's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Welsh is licensed in Utah.
Specialties and state licenses
- Internal medicine, UtahPrimary
Internists near Dr. Welsh
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
2,420internists in Arizona72internists in Chandler33internists at Dignity Health Chandler Regional Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas H. Welsh's patients have a median age of 49
Across all payers, Dmand AI patient panel data puts Dr. Welsh's median patient age at 49, with 61% women.
Dr. Welsh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women61%
- Men37%
Source: Dmand AI Patient Panel Data
Dr. Thomas H. Welsh wrote 175 Medicare Part D claims in 2024
In 2024, Dr. Welsh wrote 175 Medicare Part D claims for 106 patients. 92% of them were for generic drugs. CMS names the drug for 67 of them, across 3 drugs with 11 or more claims each, at $271 in total drug cost. In 2023, CMS named 79 claims across 5 drugs.
Part D claims, 2024175
Drugs named by CMS3
Total drug cost$271
Part D patients106
Dr. Welsh's Part D claims by kind of drug, 2024
- Generic161 claims92%
- Brand-name14 claims8%
Dr. Welsh'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. Welsh's Part D claims, 2024
- Antibiotics47%83 of 175 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: 792024: 6715%
Drugs named by CMS: 3 in 2024, 5 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
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Dr. Thomas H. Welsh has 66 publications on record
Dmand AI links 66 papers to Dr. Welsh, published from 2010 to 2025. 2023 was the busiest year, with 7. The most frequent topics are Cattle, Temperament and Horses. Dr. Welsh has published most often in J Anim Sci. Dr. Welsh's most frequent co-author is Jeanmarie Mayer, MD.
Papers66
Years published2010 to 2025
Dr. Welsh's papers by year, 2015 to 2025
Topics Dr. Welsh writes about most
- Cattle
- Temperament
- Horses
- Hydrocortisone
- Transportation
- Stress, Physiological
- Animals, Newborn
- Diet
Dr. Welsh's most frequent co-authors
Recent publications by Dr. Welsh
CattleDNA MethylationHypothalamo-Hypophyseal System
CattleGene Regulatory NetworksPolymorphism, Single Nucleotide
Anim Reprod Sci
Animal HusbandryAnimal Nutritional Physiological PhenomenaCattle
See who Dr. Welsh researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Welsh works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Thomas H. Welsh'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 H. Welsh
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 H. Welsh's NPI number?
Dr. Thomas H. Welsh's NPI number is 1487604740. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas H. Welsh?
Dr. Thomas H. Welsh is an internist in Chandler, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Thomas H. Welsh practice?
Dr. Welsh practices at 1955 West Frye Road, Chandler, AZ 85224. Dr. Welsh's primary practice is Dignity Health Chandler Regional Medical Center in Chandler, Arizona, part of CommonSpirit Health.
What is Dr. Thomas H. Welsh's office phone number?
The practice phone on file for Dr. Welsh is (480) 728-3000.
What is Dr. Thomas H. Welsh's medical license number?
Dr. Welsh holds Utah license 3082746-1205.
Which hospitals is Dr. Thomas H. Welsh affiliated with?
Dr. Welsh practices at Dignity Health Chandler Regional Medical Center in Chandler, Arizona.
What medical group is Dr. Thomas H. Welsh part of?
Dr. Welsh is linked to Mercy Family Health Center.
What drugs does Dr. Thomas H. Welsh prescribe most?
In 2024 Medicare Part D data, Dr. Welsh's most prescribed drugs by claims were Prednisone, Azithromycin and Amoxicillin-Clavulanate Potass.
How long has Dr. Thomas H. Welsh been practicing?
Dr. Welsh's NPI was assigned in 2006.
Does Dr. Thomas H. Welsh do research?
Dmand AI links 66 publications to Dr. Welsh, published from 2010 to 2025.
Who does Dr. Thomas H. Welsh publish with?
Dr. Welsh's most frequent co-authors are Jeanmarie Mayer, MD (1 shared paper).
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