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Dr. Thomas Chang Tan, MD
NPI1417189184
- Medicare services, 2024
- 114
- Medicare patients, 2024
- 97
- Part D claims, 2024
- 576
- Publications
- 1
- Hospital affiliations
- 3
- Practice address
- 6720 Bertner Ave, STE Mc1-266, Houston, TX 77030
- Practice phone
- Call (832) 355-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Thomas Chang Tan is an emergency medicine physician in Houston, Texas
Dr. Tan practices at Baylor St. Luke's Medical Center in Houston, Texas, part of CommonSpirit Health.
Dr. Tan's NPI, 1417189184, was assigned on August 14, 2009. Dr. Tan graduated from Ohio State College of Medicine in 2006. Dr. Tan holds Texas license N4780.
NPI and contact details
- NPI
- 1417189184NPI Registry (opens in a new tab)
- NPI enumeration date
- August 14, 2009
- NPI status
- Active
- Practice phone
- (832) 355-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas Chang Tan practices at Baylor St. Luke's Medical Center in Houston, Texas
Dr. Tan's primary practice is Baylor St. Luke's Medical Center, at 6720 Bertner Ave, STE Mc1-266, Houston, TX 77030 in Harris County. The practice phone is (832) 355-1000.
- Baylor St. Luke's Medical Center6720 Bertner Ave, STE Mc1-266, Houston, TX 77030 · Harris CountyPhone(832) 355-1000
Source: Dmand AI Affiliation Data
Dr. Thomas Chang Tan is affiliated with 3 sites of care and 1 medical group
Dr. Tan's primary practice is Baylor St. Luke's Medical Center in Houston, Texas, part of CommonSpirit Health. Dr. Tan is also affiliated with The University of Texas MD Anderson Cancer Center. The medical group on file is IES Houston. Dmand AI also links Dr. Tan to 1 more hospital, 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 Chang Tan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baylor St. Luke's Medical Center | 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 Chang Tan is one of 4,831 emergency medicine physicians in Texas
Emergency medicine is Dr. Tan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Tan is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Tan's licenses on file in 2 states: Texas and New York.
Specialties and state licenses
- Emergency medicine, TexasPrimary
- New York license
Emergency medicine physicians near Dr. Tan
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
4,831emergency medicine physicians in Texas611emergency medicine physicians in Houston56emergency medicine physicians at Baylor St. Luke's Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas Chang Tan billed Medicare for 114 services in 2024
CMS data shows 114 Medicare services from Dr. Tan across 3 procedure codes in 2024, for 97 Medicare patients. Medicare paid $10,141 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024114
Medicare patients97
Paid by Medicare$10,141
Procedure codes3
Dr. Tan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1012024: 947%
- Tests and treatments
- 2023: 242024: 2017%
Dr. Tan compared with the Texas median for emergency medicine physicians, 2024
- Dr. Tan
- Texas median
- Medicare services
- 114vs 22549% below
- Medicare patients
- 97vs 20653% below
- Part D claims
- 441vs 746.0 times
Medians across 4,588 emergency medicine physicians in Texas with Dmand AI profiles that report each measure.
Dr. Tan'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. Tan and other emergency medicine physicians in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas Chang Tan treated 97 Medicare patients in 2024, average age 73
CMS counts 97 Medicare patients who saw Dr. Tan in 2024. The largest group is 65 to 74, with 36 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tan's median patient age at 53, with 64% women.
Medicare patients, 202497
Average age73
Average risk score1.49
Also on Medicaid18%
Dr. Tan's Medicare patients by age, 2024
Dr. Tan's Medicare patients by sex, 2024
- Women5557%
- Men4243%
Chronic conditions among Dr. Tan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Ischemic heart disease41%
- Arthritis40%
- Chronic kidney disease40%
- Diabetes32%
- Mood disorders32%
- Anxiety30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas Chang Tan wrote 576 Medicare Part D claims in 2024
In 2024, Dr. Tan wrote 576 Medicare Part D claims for 350 patients. 95% of them were for generic drugs. CMS names the drug for 441 of them, across 14 drugs with 11 or more claims each, at $3,647 in total drug cost. In 2023, CMS named 368 claims across 13 drugs.
Part D claims, 2024576
Drugs named by CMS14
Total drug cost$3,647
Part D patients350
Dr. Tan's Part D claims by kind of drug, 2024
- Generic548 claims95%
- Brand-name28 claims5%
Dr. Tan'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. Tan's Part D claims, 2024
- Opioids18%101 of 576 claims
- Antibiotics31%180 of 576 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: 3682024: 44120%
Drugs named by CMS: 14 in 2024, 13 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 Chang Tan has 1 publication on record
Dmand AI links 1 paper to Dr. Tan.
Papers1
Recent publications by Dr. Tan
See who Dr. Tan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tan works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas Chang Tan received $460 in industry payments from 2016 to 2021
CMS Open Payments shows 8 general payments to Dr. Tan from 7 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $153.
General payments to Dr. Tan by program year, 2016 to 2021
Companies that paid Dr. Tan the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas Chang Tan graduated from Ohio State College of Medicine
Dr. Tan graduated from Ohio State College of Medicine in 2006.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Thomas Chang Tan accepts plans from 19 insurance carriers
Dr. Tan is in network with 19 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +11 more carriersWith a free account
Plan types Dr. Tan accepts, by number of carriers
- PPO12
- HMO9
- Medicare7
- POS6
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas Chang Tan'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) |
| 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Chang Tan
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 Chang Tan's NPI number?
Dr. Thomas Chang Tan's NPI number is 1417189184. It was assigned on August 14, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Chang Tan?
Dr. Thomas Chang Tan is an emergency medicine physician in Houston, Texas. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Thomas Chang Tan practice?
Dr. Tan practices at 6720 Bertner Ave, STE Mc1-266, Houston, TX 77030. Dr. Tan's primary practice is Baylor St. Luke's Medical Center in Houston, Texas, part of CommonSpirit Health. Dmand AI also links Dr. Tan to 1 hospital.
What is Dr. Thomas Chang Tan's office phone number?
The practice phone on file for Dr. Tan is (832) 355-1000.
What is Dr. Thomas Chang Tan's medical license number?
Dr. Tan holds Texas license N4780, one of the licenses on file in 2 states.
Which states has Dr. Thomas Chang Tan been licensed in?
Dmand AI has state licenses on file for Dr. Tan in Texas (2009 to 2026) and New York (2009 to 2011).
Which hospitals is Dr. Thomas Chang Tan affiliated with?
Dr. Tan practices at Baylor St. Luke's Medical Center in Houston, Texas. Dr. Tan is also affiliated with The University of Texas MD Anderson Cancer Center. Dmand AI links Dr. Tan to 1 more hospital.
What medical group is Dr. Thomas Chang Tan part of?
Dr. Tan is linked to IES Houston.
Does Dr. Thomas Chang Tan accept Medicare?
Yes. CMS data shows Dr. Tan billed Medicare for 114 services in 2024.
How many Medicare patients does Dr. Thomas Chang Tan see?
CMS counts 97 Medicare patients who saw Dr. Tan in 2024, with an average age of 73.
Show 8 more questionsShow fewer questions
Is Dr. Thomas Chang Tan board certified?
Yes. Dr. Tan is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Thomas Chang Tan bill to Medicare?
In 2024, Dr. Tan's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and heart test or procedure (93010).
Where did Dr. Thomas Chang Tan go to medical school?
Dr. Tan graduated from Ohio State College of Medicine in 2006.
What drugs does Dr. Thomas Chang Tan prescribe most?
In 2024 Medicare Part D data, Dr. Tan's most prescribed drugs by claims were Acetaminophen-Codeine, Amoxicillin-Clavulanate Potass and Doxycycline Hyclate.
Has Dr. Thomas Chang Tan received payments from drug or device companies?
CMS Open Payments shows $460 in general payments to Dr. Tan from 7 companies from 2016 to 2021. The largest total came from Genentech, Inc.
How long has Dr. Thomas Chang Tan been practicing?
Dr. Tan graduated from medical school in 2006, 20 years ago.
Does Dr. Thomas Chang Tan do research?
Dmand AI links 1 publication to Dr. Tan.
What insurance does Dr. Thomas Chang Tan accept?
Dr. Tan is in network with 19 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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