Dr. Tze Lyn Stephanie Tseeng, MD
- Medicare services, 2024
- 439
- Medicare patients, 2024
- 385
- Part D claims, 2024
- 311
- MIPS score, 2024
- 89
- Hospital affiliations
- 3
- Practice address
- 101 City Drive South, Orange, CA 92868
- Practice phone
- Call (714) 456-7890
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tseeng's professional email, personal email and mobile number
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Dr. Tze Lyn Stephanie Tseeng is an emergency medicine physician in Orange, California
Dr. Tseeng practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Dr. Tseeng's NPI, 1346556891, was assigned on August 23, 2010. Dr. Tseeng graduated from Chicago College of Medicine and Surgery in 2010. Dr. Tseeng holds Illinois license 125058524.
- NPI
- 1346556891NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618195215
- NPI enumeration date
- August 23, 2010
- NPI status
- Active
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Tze Lyn Stephanie Tseeng practices at UCI Health - Orange in Orange, California
Dr. Tseeng's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.
- UCI Health - Orange101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890
Source: Dmand AI Affiliation Data
Dr. Tze Lyn Stephanie Tseeng is affiliated with 3 sites of care and 6 medical groups
Dr. Tseeng's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dr. Tseeng is also affiliated with AHMC Anaheim Regional Medical Center. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Dr. Tseeng to 1 more hospital and 5 medical groups, 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. Tze Lyn Stephanie Tseeng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tseeng practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
| +2 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tze Lyn Stephanie Tseeng is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Tseeng's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Tseeng is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Tseeng
Counts of emergency medicine 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. Tze Lyn Stephanie Tseeng billed Medicare for 439 services in 2024
CMS data shows 439 Medicare services from Dr. Tseeng across 8 procedure codes in 2024, for 385 Medicare patients. Medicare paid $41,753 for them.
Dr. Tseeng's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1372024: 360163%
- Tests and treatments
- 2023: 472024: 7968%
Where Dr. Tseeng's Medicare services took place, 2024
- In an office21449%
- In a facility22551%
Dr. Tseeng compared with the California median for emergency medicine physicians, 2024
- Dr. Tseeng
- California median
- Medicare services
- 439vs 26566% above
- Medicare patients
- 385vs 24358% above
- Part D claims
- 131vs 622.1 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Tseeng'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tze Lyn Stephanie Tseeng treated 385 Medicare patients in 2024, average age 74
CMS counts 385 Medicare patients who saw Dr. Tseeng in 2024. The largest group is 65 to 74, with 151 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 2.22, 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. Tseeng's median patient age at 49, with 60% women.
Dr. Tseeng's Medicare patients by age, 2024
Dr. Tseeng's Medicare patients by sex, 2024
- Women21656%
- Men16944%
Chronic conditions among Dr. Tseeng's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Diabetes36%
- Mood disorders34%
- Ischemic heart disease32%
- Chronic kidney disease30%
- Depression30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tseeng'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
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tze Lyn Stephanie Tseeng wrote 311 Medicare Part D claims in 2024
In 2024, Dr. Tseeng wrote 311 Medicare Part D claims for 229 patients. 89% of them were for generic drugs. CMS names the drug for 131 of them, across 7 drugs with 11 or more claims each, at $583 in total drug cost. In 2023, CMS named 14 claims across 1 drug.
Dr. Tseeng's Part D claims by kind of drug, 2024
- Generic276 claims89%
- Brand-name and other35 claims11%
Dr. Tseeng'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. Tseeng's Part D claims, 2024
- Opioids7%23 of 311 claims
- Antibiotics33%104 of 311 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: 142024: 131836%
Drugs named by CMS: 7 in 2024, 1 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. Tze Lyn Stephanie Tseeng scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Tseeng for performance year 2024, reported as part of a group.
Dr. Tseeng's MIPS scores, performance year 2024
- 89of 100Final score
- 72.1of 100Quality
- 80of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Tze Lyn Stephanie Tseeng graduated from Chicago College of Medicine and Surgery
Dr. Tseeng graduated from Chicago College of Medicine and Surgery in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Tze Lyn Stephanie Tseeng'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 | Clinician Public Reporting: Overall MIPS Performance (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. Tze Lyn Stephanie Tseeng
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. Tze Lyn Stephanie Tseeng's NPI number?
Dr. Tze Lyn Stephanie Tseeng's NPI number is 1346556891. It was assigned on August 23, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Tze Lyn Stephanie Tseeng?
Dr. Tze Lyn Stephanie Tseeng is an emergency medicine physician in Orange, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Tze Lyn Stephanie Tseeng practice?
Dr. Tseeng practices at 101 City Drive South, Orange, CA 92868. Dr. Tseeng's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dmand AI also links Dr. Tseeng to 1 hospital and 5 medical groups.
What is Dr. Tze Lyn Stephanie Tseeng's office phone number?
The practice phone on file for Dr. Tseeng is (714) 456-7890.
What is Dr. Tze Lyn Stephanie Tseeng's medical license number?
Dr. Tseeng holds Illinois license 125058524.
Which hospitals is Dr. Tze Lyn Stephanie Tseeng affiliated with?
Dr. Tseeng practices at UCI Health - Orange in Orange, California. Dr. Tseeng is also affiliated with AHMC Anaheim Regional Medical Center. Dmand AI links Dr. Tseeng to 1 more hospital.
What medical group is Dr. Tze Lyn Stephanie Tseeng part of?
Dr. Tseeng is linked to Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI links Dr. Tseeng to 5 more medical groups.
Does Dr. Tze Lyn Stephanie Tseeng accept Medicare?
Yes. CMS data shows Dr. Tseeng billed Medicare for 439 services in 2024.
What is Dr. Tze Lyn Stephanie Tseeng's MIPS score?
Dr. Tseeng's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Tze Lyn Stephanie Tseeng see?
CMS counts 385 Medicare patients who saw Dr. Tseeng in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Tze Lyn Stephanie Tseeng bill to Medicare?
In 2024, Dr. Tseeng's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and office visit, new patient (99203).
Where did Dr. Tze Lyn Stephanie Tseeng go to medical school?
Dr. Tseeng graduated from Chicago College of Medicine and Surgery in 2010.
What drugs does Dr. Tze Lyn Stephanie Tseeng prescribe most?
In 2024 Medicare Part D data, Dr. Tseeng's most prescribed drugs by claims were Cephalexin, Azithromycin and Paxlovid.
How long has Dr. Tze Lyn Stephanie Tseeng been practicing?
Dr. Tseeng graduated from medical school in 2010, 16 years ago.
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