Dr. Tobun Toby Cheung, MD
- Medicare services, 2016
- 107
- Industry payments
- $14
- Affiliated sites
- 1
- Medical groups
- 3
- State licenses
- 2
- Practice address
- 901 Mountain View Dr, Shelton, WA 98584
- Practice phone
- Call (360) 427-9549
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mason General Hosptial
Shelton, Washington
Find Dr. Cheung'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. Tobun Toby Cheung is an internist in Shelton, Washington
Dr. Cheung practices at Mason General Hosptial in Shelton, Washington.
Dr. Cheung's NPI, 1508895509, was assigned on July 2, 2006. Dr. Cheung holds Kentucky license 41002.
- NPI
- 1508895509NPI Registry (opens in a new tab)
- NPI enumeration date
- July 2, 2006
- NPI status
- Active
- Practice phone
- (360) 427-9549
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Tobun Toby Cheung practices at Mason General Hosptial in Shelton, Washington
Dr. Cheung's primary practice is Mason General Hosptial, at 901 Mountain View Dr, Shelton, WA 98584 in Mason County. The practice phone is (360) 427-9549.
- Mason General Hosptial901 Mountain View Dr, Shelton, WA 98584 · Mason CountyPhone(360) 427-9549
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Tobun Toby Cheung is affiliated with 2 sites of care and 3 medical groups
Dr. Cheung's primary practice is Mason General Hosptial in Shelton, Washington. The medical group on file is Mason Health. Dmand AI also links Dr. Cheung to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Tobun Toby Cheung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cheung practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mason General Hosptial | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tobun Toby Cheung is one of 2,689 internists in Washington
Internal medicine is Dr. Cheung's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Cheung's licenses on file in 2 states: Kentucky and Tennessee.
Specialties and state licenses
- Internal medicine, KentuckyPrimary
- Emergency medicine, Tennessee
Internists near Dr. Cheung
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. Tobun Toby Cheung billed Medicare for 107 services in 2016
CMS data shows 107 Medicare services from Dr. Cheung across 4 procedure codes in 2016. Medicare paid $8,122 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Cheung compared with the Washington median for internists, 2016
- Dr. Cheung
- Washington median
- Medicare services
- 107vs 36471% below
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Dr. Cheung's most billed Medicare procedure codes, 2016
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Cheung?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Cheung and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tobun Toby Cheung's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Dr. Cheung's median patient age at 47, with 0% women.
Dr. Cheung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
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Dr. Tobun Toby Cheung received $14 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Cheung from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $14.
Companies that paid Dr. Cheung the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Tobun Toby Cheung'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 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 Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Tobun Toby Cheung
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. Tobun Toby Cheung's NPI number?
Dr. Tobun Toby Cheung's NPI number is 1508895509. It was assigned on July 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Tobun Toby Cheung?
Dr. Tobun Toby Cheung is an internist in Shelton, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Tobun Toby Cheung practice?
Dr. Cheung practices at 901 Mountain View Dr, Shelton, WA 98584. Dr. Cheung's primary practice is Mason General Hosptial in Shelton, Washington. Dmand AI also links Dr. Cheung to 2 medical groups and 1 group practice or clinic.
What is Dr. Tobun Toby Cheung's office phone number?
The practice phone on file for Dr. Cheung is (360) 427-9549.
What is Dr. Tobun Toby Cheung's medical license number?
Dr. Cheung holds Kentucky license 41002, one of the licenses on file in 2 states.
Which states has Dr. Tobun Toby Cheung been licensed in?
Dmand AI has state licenses on file for Dr. Cheung in Kentucky and Tennessee.
What medical group is Dr. Tobun Toby Cheung part of?
Dr. Cheung is linked to Mason Health. Dmand AI links Dr. Cheung to 2 more medical groups.
Does Dr. Tobun Toby Cheung accept Medicare?
Yes. CMS data shows Dr. Cheung billed Medicare for 107 services in 2016.
What services does Dr. Tobun Toby Cheung bill to Medicare?
In 2016, Dr. Cheung's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and medical service (99217).
Has Dr. Tobun Toby Cheung received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Cheung from 1 company from 2016 to 2016. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Tobun Toby Cheung been practicing?
Dr. Cheung's NPI was assigned in 2006.
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