Dr. Thomas Xu, MD
- Medicare services, 2024
- 588
- Medicare patients, 2024
- 154
- Part D claims, 2024
- 1,274
- Publications
- 3
- MIPS score, 2024
- 87
- Practice address
- 1 Omega Dr, Stamford, CT 06907
- Practice phone
- Call (203) 276-7447
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Stamford Health Medical Group, Inc.
Stamford, Connecticut
Find Dr. Xu'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 Xu is an internist in Stamford, Connecticut
Dr. Xu practices at Stamford Health Medical Group, Inc. in Stamford, Connecticut.
Dr. Xu's NPI, 1972881050, was assigned on July 24, 2011. Dr. Xu graduated from New York Medical College in 2011. Dr. Xu holds Connecticut license 053419.
- NPI
- 1972881050NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779709654
- NPI enumeration date
- July 24, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 276-7447
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas Xu practices at Stamford Health Medical Group, Inc. in Stamford, Connecticut
Dr. Xu's primary practice is Stamford Health Medical Group, Inc., at 1 Omega Dr, Stamford, CT 06907 in Western Ct County. The practice phone is (203) 276-7447.
- Stamford Health Medical Group, Inc.1 Omega Dr, Stamford, CT 06907 · Western Ct CountyPhone(203) 276-7447
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Thomas Xu is affiliated with 3 sites of care and 1 medical group
Dr. Xu's primary practice is Stamford Health Medical Group, Inc. in Stamford, Connecticut. Dr. Xu is also affiliated with Stamford Hospital. The medical group on file is Stamford Health Medical Group. Dmand AI also links Dr. Xu to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas Xu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Xu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stamford Health Medical Group, Inc. | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas Xu is one of 2,189 internists in Connecticut
Internal medicine is Dr. Xu's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Xu's licenses on file in 2 states: Connecticut and New York.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
- New York license
Internists near Dr. Xu
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 Xu billed Medicare for 588 services in 2024
CMS data shows 588 Medicare services from Dr. Xu across 5 procedure codes in 2024, for 154 Medicare patients. Medicare paid $35,975 for them. Every service was in an office.
Dr. Xu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5332024: 36332%
- Other services
- 2023: 132024: 2001438%
- Tests and treatments
- 2023: 382024: 2534%
Dr. Xu compared with the Connecticut median for internists, 2024
- Dr. Xu
- Connecticut median
- Medicare services
- 588vs 39051% above
- Medicare patients
- 154vs 17210% below
- Part D claims
- 975vs 3432.8 times
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Xu'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. Xu and other internists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas Xu treated 154 Medicare patients in 2024, average age 75
CMS counts 154 Medicare patients who saw Dr. Xu in 2024. The largest group is 65 to 74, with 73 patients. 71% of them have high cholesterol, and 58% have high blood pressure. Their average risk score is 0.81, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Xu's median patient age at 56, with 34% women.
Dr. Xu's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Xu's Medicare patients by sex, 2024
- Women5938%
- Men9562%
Chronic conditions among Dr. Xu's Medicare patients, 2024
- High cholesterol71%
- High blood pressure58%
- Arthritis34%
- Cancer23%
- Ischemic heart disease22%
- Anxiety18%
- Atrial fibrillation13%
- Mood disorders12%
Share of Medicare patients with each condition. A patient can have several.
Dr. Xu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women34%
- Men63%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas Xu wrote 1,274 Medicare Part D claims in 2024
In 2024, Dr. Xu wrote 1,274 Medicare Part D claims for 178 patients. 92% of them were for generic drugs. CMS names the drug for 975 of them, across 24 drugs with 11 or more claims each, at $28,820 in total drug cost. In 2023, CMS named 920 claims across 24 drugs.
Dr. Xu's Part D claims by kind of drug, 2024
- Generic1,171 claims92%
- Brand-name and other103 claims8%
Dr. Xu'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. Xu's Part D claims, 2024
- Antibiotics1%15 of 1,274 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: 9202024: 9756%
Drugs named by CMS: 24 in 2024, 24 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 Xu scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Xu for performance year 2024, reported as part of a group. Dr. Xu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Xu as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Xu's MIPS scores, performance year 2024
- 87of 100Final score
- 84.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Thomas Xu has 3 publications on record
Dmand AI links 3 papers to Dr. Xu, published from 2016 to 2025. The most frequent topics are Tissue Scaffolds. Dr. Xu's most frequent co-authors are Hyun S. Kim, MD and Hyun Kim, MD.
Dr. Xu's papers by year, 2016 to 2025
Topics Dr. Xu writes about most
- Tissue Scaffolds
Dr. Xu's most frequent co-authors
Recent publications by Dr. Xu
Tissue Eng Part A
See who Dr. Xu researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Xu works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas Xu received $299 in industry payments from 2016 to 2019
CMS Open Payments shows 13 general payments to Dr. Xu from 2 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $279.
General payments to Dr. Xu by program year, 2016 to 2019
Companies that paid Dr. Xu the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas Xu graduated from New York Medical College
Dr. Xu graduated from New York Medical College in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas Xu'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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 Xu
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 Xu's NPI number?
Dr. Thomas Xu's NPI number is 1972881050. It was assigned on July 24, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Xu?
Dr. Thomas Xu is an internist in Stamford, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Thomas Xu practice?
Dr. Xu practices at 1 Omega Dr, Stamford, CT 06907. Dr. Xu's primary practice is Stamford Health Medical Group, Inc. in Stamford, Connecticut. Dmand AI also links Dr. Xu to 1 group practice or clinic.
What is Dr. Thomas Xu's office phone number?
The practice phone on file for Dr. Xu is (203) 276-7447.
What is Dr. Thomas Xu's medical license number?
Dr. Xu holds Connecticut license 053419, one of the licenses on file in 2 states.
Which states has Dr. Thomas Xu been licensed in?
Dmand AI has state licenses on file for Dr. Xu in Connecticut and New York.
Which hospitals is Dr. Thomas Xu affiliated with?
Dr. Xu is affiliated with Stamford Hospital.
What medical group is Dr. Thomas Xu part of?
Dr. Xu is linked to Stamford Health Medical Group.
Does Dr. Thomas Xu accept Medicare?
Yes. CMS data shows Dr. Xu billed Medicare for 588 services in 2024, and Dr. Xu accepts Medicare assignment.
Does Dr. Thomas Xu offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Xu as offering telehealth services.
Show 9 more questionsShow fewer questions
What is Dr. Thomas Xu's MIPS score?
Dr. Xu's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. Thomas Xu see?
CMS counts 154 Medicare patients who saw Dr. Xu in 2024, with an average age of 75.
What services does Dr. Thomas Xu bill to Medicare?
In 2024, Dr. Xu's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).
Where did Dr. Thomas Xu go to medical school?
Dr. Xu graduated from New York Medical College in 2011.
What drugs does Dr. Thomas Xu prescribe most?
In 2024 Medicare Part D data, Dr. Xu's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Amlodipine Besylate.
Has Dr. Thomas Xu received payments from drug or device companies?
CMS Open Payments shows $299 in general payments to Dr. Xu from 2 companies from 2016 to 2019. The largest total came from Boston Scientific Corporation.
How long has Dr. Thomas Xu been practicing?
Dr. Xu graduated from medical school in 2011, 15 years ago.
Does Dr. Thomas Xu do research?
Dmand AI links 3 publications to Dr. Xu, published from 2016 to 2025.
Who does Dr. Thomas Xu publish with?
Dr. Xu's most frequent co-authors are Hyun S. Kim, MD (1 shared paper) and Hyun Kim, MD (1 shared paper).
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