Dr. Thomas D. Lei, MD
- Medicare services, 2024
- 2,280
- Medicare patients, 2024
- 328
- Part D claims, 2024
- 1,849
- MIPS score, 2024
- 24
- Hospital affiliations
- 3
- Practice address
- 225 N Jackson Avenue, San Jose, CA 95116
- Practice phone
- Call (408) 259-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lei'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 D. Lei is a pulmonologist in San Jose, California
Dr. Lei practices at Regional Medical Center in San Jose, California, part of County of Santa Clara, CA.
Dr. Lei's NPI, 1225001027, was assigned on February 10, 2006. Dr. Lei graduated from Third Military Medical University in 1985. Dr. Lei's California license number on file is A78558.
- NPI
- 1225001027NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709925084
- NPI enumeration date
- February 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 259-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas D. Lei practices at Regional Medical Center in San Jose, California
Dr. Lei's primary practice is Regional Medical Center, at 225 N Jackson Avenue, San Jose, CA 95116 in Santa Clara County. The practice phone is (408) 259-5000.
- Regional Medical Center225 N Jackson Avenue, San Jose, CA 95116 · Santa Clara CountyPhone(408) 259-5000
Source: Dmand AI Affiliation Data
Dr. Thomas D. Lei is affiliated with 4 sites of care and 2 medical groups
Dr. Lei's primary practice is Regional Medical Center in San Jose, California, part of County of Santa Clara, CA. Dr. Lei is also affiliated with Santa Clara Valley Medical Center. The medical group on file is County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic. Dmand AI also links Dr. Lei to 1 more hospital, 1 group practice or clinic and 1 medical group, 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 D. Lei's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lei practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Regional Medical Center | Available with a free account |
| +3 more sites and 1 medical group | 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 County of Santa Clara, CA and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Thomas D. Lei is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Lei's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dmand AI has Dr. Lei's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Pulmonary disease, CaliforniaPrimary
- New York license
Clinical focus
Dmand AI lists asthma, chronic obstructive pulmonary disease (COPD), pleural effusion, pneumonia and tobacco use among the conditions Dr. Lei treats.
Pulmonologists near Dr. Lei
Counts of pulmonologists 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 D. Lei billed Medicare for 2,280 services in 2024
CMS data shows 2,280 Medicare services from Dr. Lei across 22 procedure codes in 2024, for 328 Medicare patients. Medicare paid $176,802 for them.
Dr. Lei's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,6452024: 1,28522%
- Tests and treatments
- 2023: 5722024: 5189%
- Imaging
- 2023: 3262024: 2979%
- Surgery
- 2023: 1562024: 18015%
Where Dr. Lei's Medicare services took place, 2024
- In an office1,29757%
- In a facility98343%
Dr. Lei compared with the California median for pulmonologists, 2024
- Dr. Lei
- California median
- Medicare services
- 2,280vs 6493.5 times
- Medicare patients
- 328vs 27221% above
- Part D claims
- 1,779vs 4214.2 times
Medians across 1,263 pulmonologists in California with Dmand AI profiles that report each measure.
Dr. Lei'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. Lei and other pulmonologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas D. Lei treated 328 Medicare patients in 2024, average age 79
CMS counts 328 Medicare patients who saw Dr. Lei in 2024. The largest group is 75 to 84, with 138 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 76% are also on Medicaid. Their average risk score is 2.16, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Lei's median patient age at 74, with 43% women.
Dr. Lei's Medicare patients by age, 2024
Dr. Lei's Medicare patients by sex, 2024
- Women16249%
- Men16651%
Chronic conditions among Dr. Lei's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- COPD63%
- Diabetes55%
- Chronic kidney disease40%
- Arthritis39%
- Ischemic heart disease37%
- Heart failure33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lei's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas D. Lei wrote 1,849 Medicare Part D claims in 2024
In 2024, Dr. Lei wrote 1,849 Medicare Part D claims for 323 patients. 15% of them were for generic drugs. CMS names the drug for 1,779 of them, across 22 drugs with 11 or more claims each, at $741,860 in total drug cost. In 2023, CMS named 1,697 claims across 24 drugs.
Dr. Lei's Part D claims by kind of drug, 2024
- Generic274 claims15%
- Brand-name1,575 claims85%
Dr. Lei'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. Lei's Part D claims, 2024
- Antibiotics2%37 of 1,849 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: 1,6972024: 1,7795%
Drugs named by CMS: 22 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 D. Lei scored 24 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 24 out of 100 for Dr. Lei for performance year 2024, reported individually. Dr. Lei accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Lei's MIPS scores, performance year 2024
- 24of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 81of 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 D. Lei received $27,998 in industry payments from 2016 to 2025
CMS Open Payments shows 150 general payments to Dr. Lei from 26 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 51% of the total. Intuitive Surgical, Inc. paid the most, $19,583.
General payments to Dr. Lei by program year, 2016 to 2025
General payments to Dr. Lei by kind, 2016 to 2025
- Travel and lodging$14,14351%
- Education$7,02925%
- Food and beverage$4,81217%
- Speaker and faculty fees$2,0007%
- Gifts$140%
Companies that paid Dr. Lei the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas D. Lei graduated from Third Military Medical University
Dr. Lei graduated from Third Military Medical University in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Thomas D. Lei accepts plans from 15 insurance carriers
Dr. Lei is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Lei accepts, by number of carriers
- PPO9
- Medicare8
- HMO5
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas D. Lei'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) |
| 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 D. Lei
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 D. Lei's NPI number?
Dr. Thomas D. Lei's NPI number is 1225001027. It was assigned on February 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas D. Lei?
Dr. Thomas D. Lei is a pulmonologist in San Jose, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Thomas D. Lei practice?
Dr. Lei practices at 225 N Jackson Avenue, San Jose, CA 95116. Dr. Lei's primary practice is Regional Medical Center in San Jose, California, part of County of Santa Clara, CA. Dmand AI also links Dr. Lei to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Thomas D. Lei's office phone number?
The practice phone on file for Dr. Lei is (408) 259-5000.
What is Dr. Thomas D. Lei's medical license number?
Dr. Lei's California license number on file is A78558, one of the licenses on file in 2 states.
Which states has Dr. Thomas D. Lei been licensed in?
Dmand AI has state licenses on file for Dr. Lei in California (2002 to 2025) and New York (1999 to 2002).
Which hospitals is Dr. Thomas D. Lei affiliated with?
Dr. Lei practices at Regional Medical Center in San Jose, California. Dr. Lei is also affiliated with Santa Clara Valley Medical Center. Dmand AI links Dr. Lei to 1 more hospital.
What medical group is Dr. Thomas D. Lei part of?
Dr. Lei is linked to County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic. Dmand AI links Dr. Lei to 1 more medical group.
Does Dr. Thomas D. Lei accept Medicare?
Yes. CMS data shows Dr. Lei billed Medicare for 2,280 services in 2024, and Dr. Lei accepts Medicare assignment.
What is Dr. Thomas D. Lei's MIPS score?
Dr. Lei's MIPS final score for performance year 2024 is 24 out of 100, reported individually.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Thomas D. Lei see?
CMS counts 328 Medicare patients who saw Dr. Lei in 2024, with an average age of 79.
What services does Dr. Thomas D. Lei bill to Medicare?
In 2024, Dr. Lei's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and lung function service (94664).
Where did Dr. Thomas D. Lei go to medical school?
Dr. Lei graduated from Third Military Medical University in 1985.
What drugs does Dr. Thomas D. Lei prescribe most?
In 2024 Medicare Part D data, Dr. Lei's most prescribed drugs by claims were Trelegy Ellipta, Albuterol Sulfate Hfa and Arnuity Ellipta.
Has Dr. Thomas D. Lei received payments from drug or device companies?
CMS Open Payments shows $27,998 in general payments to Dr. Lei from 26 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Thomas D. Lei been practicing?
Dr. Lei graduated from medical school in 1985, 41 years ago.
What insurance does Dr. Thomas D. Lei accept?
Dr. Lei is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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