Michael Tzeng
- Medicare services, 2024
- 1,211
- Medicare patients, 2024
- 299
- Part D claims, 2024
- 2,235
- Hospital affiliations
- 2
- Industry payments
- $22
- Practice address
- 1100 9th Ave, Seattle, WA 98101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Virginia Mason Medical Center - HOPD
Acute Care Hospital outpatient department · Seattle, Washington
Find Michael Tzeng'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.
Michael Tzeng is an internist in Seattle, Washington
Michael Tzeng practices at Virginia Mason Medical Center - HOPD in Seattle, Washington.
Michael Tzeng's NPI, 1942829080, was assigned on April 9, 2020. Michael Tzeng graduated from University of Maryland School of Medicine in 2020. Michael Tzeng holds Washington license MD61432472.
- NPI
- 1942829080NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022430842
- NPI enumeration date
- April 9, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Michael Tzeng practices at Virginia Mason Medical Center - HOPD in Seattle, Washington
Michael Tzeng's primary practice is Virginia Mason Medical Center - HOPD, at 1100 9th Ave, Seattle, WA 98101.
- Virginia Mason Medical Center - HOPD1100 9th Ave, Seattle, WA 98101
Source: Dmand AI Affiliation Data
Michael Tzeng is affiliated with 7 sites of care and 3 medical groups
Michael Tzeng's primary practice is Virginia Mason Medical Center - HOPD in Seattle, Washington. Michael Tzeng is also affiliated with Virginia Mason Medical Center. The medical group on file is Virginia Mason Medical Center. Dmand AI also links Michael Tzeng to 1 more hospital, 2 group practices and clinics, 2 medical groups, 1 home health agency and 1 imaging center, each named with a free account. Michael Tzeng's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Michael Tzeng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Tzeng practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Virginia Mason Medical Center - HOPD | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Michael Tzeng is one of 2,689 internists in Washington
Internal medicine is Michael Tzeng's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Michael Tzeng is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Michael Tzeng
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
Michael Tzeng billed Medicare for 1,211 services in 2024
CMS data shows 1,211 Medicare services from Michael Tzeng across 12 procedure codes in 2024, for 299 Medicare patients. Medicare paid $64,398 for them. Every service was in an office.
Michael Tzeng's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 412024: 5291190%
- Other services
- 2023: 02024: 409
- Surgery
- 2023: 182024: 2331194%
- Tests and treatments
- 2023: 02024: 21
- Lab and pathology
- 2023: 02024: 19
Michael Tzeng compared with the Washington median for internists, 2024
- Michael Tzeng
- Washington median
- Medicare services
- 1,211vs 3643.3 times
- Medicare patients
- 299vs 16581% above
- Part D claims
- 1,676vs 1829.2 times
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Michael Tzeng'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 Michael Tzeng and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Michael Tzeng treated 299 Medicare patients in 2024, average age 75
CMS counts 299 Medicare patients who saw Michael Tzeng in 2024. The largest group is 65 to 74, with 129 patients. 72% of them have high blood pressure, and 66% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Michael Tzeng's median patient age at 70, with 33% women.
Michael Tzeng's Medicare patients by age, 2024
Michael Tzeng's Medicare patients by sex, 2024
- Women10134%
- Men19866%
Chronic conditions among Michael Tzeng's Medicare patients, 2024
- High blood pressure72%
- High cholesterol66%
- Arthritis37%
- Diabetes27%
- Atrial fibrillation20%
- Mood disorders20%
- Chronic kidney disease19%
- Depression18%
Share of Medicare patients with each condition. A patient can have several.
Michael Tzeng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women33%
- Men65%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael Tzeng wrote 2,235 Medicare Part D claims in 2024
In 2024, Michael Tzeng wrote 2,235 Medicare Part D claims for 351 patients. 88% of them were for generic drugs. CMS names the drug for 1,676 of them, across 41 drugs with 11 or more claims each, at $109,812 in total drug cost. In 2023, CMS named 143 claims across 8 drugs.
Michael Tzeng's Part D claims by kind of drug, 2024
- Generic1,966 claims88%
- Brand-name253 claims11%
- Other16 claims1%
Michael Tzeng'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 Michael Tzeng's Part D claims, 2024
- Opioids2%35 of 2,235 claims
- Antibiotics1%27 of 2,235 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: 1432024: 1,6761072%
Drugs named by CMS: 41 in 2024, 8 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
Michael Tzeng offers telehealth to Medicare patients
Michael Tzeng accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Michael Tzeng as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Michael Tzeng received $22 in industry payments in 2022
CMS Open Payments shows 1 general payment to Michael Tzeng from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. CSL Behring paid the most, $22.
Companies that paid Michael Tzeng the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Michael Tzeng graduated from University of Maryland School of Medicine
Michael Tzeng graduated from University of Maryland School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Michael Tzeng'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 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)Doctors and Clinicians Utilization Data (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 |
| 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 Michael Tzeng
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Michael Tzeng's NPI number?
Michael Tzeng's NPI number is 1942829080. It was assigned on April 9, 2020, and it is active in the NPI Registry.
What does Michael Tzeng specialize in?
Michael Tzeng is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Michael Tzeng practice?
Michael Tzeng practices at 1100 9th Ave, Seattle, WA 98101. Michael Tzeng's primary practice is Virginia Mason Medical Center - HOPD in Seattle, Washington. Dmand AI also links Michael Tzeng to 1 hospital, 2 group practices and clinics, 2 medical groups, 1 home health agency and 1 imaging center.
What is Michael Tzeng's medical license number?
Michael Tzeng holds Washington license MD61432472.
Which hospitals is Michael Tzeng affiliated with?
Michael Tzeng is affiliated with Virginia Mason Medical Center. Dmand AI links Michael Tzeng to 1 more hospital.
What medical group is Michael Tzeng part of?
Michael Tzeng is linked to Virginia Mason Medical Center. Dmand AI links Michael Tzeng to 2 more medical groups.
Does Michael Tzeng accept Medicare?
Yes. CMS data shows Michael Tzeng billed Medicare for 1,211 services in 2024, and Michael Tzeng accepts Medicare assignment.
Does Michael Tzeng offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Michael Tzeng as offering telehealth services.
How many Medicare patients does Michael Tzeng see?
CMS counts 299 Medicare patients who saw Michael Tzeng in 2024, with an average age of 75.
What services does Michael Tzeng bill to Medicare?
In 2024, Michael Tzeng's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and surgery: heart and blood vessels (36415).
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Where did Michael Tzeng go to medical school?
Michael Tzeng graduated from University of Maryland School of Medicine in 2020.
What drugs does Michael Tzeng prescribe most?
In 2024 Medicare Part D data, Michael Tzeng's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Tamsulosin HCl.
Has Michael Tzeng received payments from drug or device companies?
CMS Open Payments shows $22 in general payments to Michael Tzeng from 1 company from 2022 to 2022. The largest total came from CSL Behring.
How long has Michael Tzeng been practicing?
Michael Tzeng graduated from medical school in 2020, 6 years ago.
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