Dr. Hao Q. To, MD
- Part D claims, 2024
- 168
- Hospital affiliations
- 2
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 1959 NE Pacific St Box 356151, Seattle, WA 98195
- Practice phone
- Call (206) 598-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. To'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. Hao Q. To is an internist in Seattle, Washington
Dr. To practices at UW Medical Center - Montlake in Seattle, Washington, part of University of Washington.
Dr. To's NPI, 1417650862, was assigned on March 24, 2023. Dr. To holds Washington license 61426281.
- NPI
- 1417650862NPI Registry (opens in a new tab)
- NPI enumeration date
- March 24, 2023
- NPI status
- Active
- Practice phone
- (206) 598-3300
- 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 Affiliation Data
Dr. Hao Q. To practices at UW Medical Center - Montlake in Seattle, Washington
Dr. To's primary practice is UW Medical Center - Montlake, at 1959 NE Pacific St Box 356151, Seattle, WA 98195 in King County. The practice phone is (206) 598-3300.
- UW Medical Center - Montlake1959 NE Pacific St Box 356151, Seattle, WA 98195 · King CountyPhone(206) 598-3300
Source: Dmand AI Affiliation Data
Dr. Hao Q. To is affiliated with 3 sites of care
Dr. To's primary practice is UW Medical Center - Montlake in Seattle, Washington, part of University of Washington. Dmand AI also links Dr. To to 1 hospital and 1 hospital outpatient department, 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. Hao Q. To's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. To practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UW Medical Center - Montlake | 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. Hao Q. To is one of 2,689 internists in Washington
Internal medicine is Dr. To's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. To is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Dr. To
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. Hao Q. To's patients have a median age of 56
Across all payers, Dmand AI patient panel data puts Dr. To's median patient age at 56, with 38% women.
Dr. To's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women38%
- Men61%
Source: Dmand AI Patient Panel Data
Dr. Hao Q. To wrote 168 Medicare Part D claims in 2024
In 2024, Dr. To wrote 168 Medicare Part D claims for 32 patients. 93% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $152 in total drug cost.
Dr. To's Part D claims by kind of drug, 2024
- Generic156 claims93%
- Brand-name and other12 claims7%
Dr. To'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.
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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Sources for Dr. Hao Q. To'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Hao Q. To
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. Hao Q. To's NPI number?
Dr. Hao Q. To's NPI number is 1417650862. It was assigned on March 24, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. Hao Q. To?
Dr. Hao Q. To is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Hao Q. To practice?
Dr. To practices at 1959 NE Pacific St Box 356151, Seattle, WA 98195. Dr. To's primary practice is UW Medical Center - Montlake in Seattle, Washington, part of University of Washington. Dmand AI also links Dr. To to 1 hospital and 1 hospital outpatient department.
What is Dr. Hao Q. To's office phone number?
The practice phone on file for Dr. To is (206) 598-3300.
What is Dr. Hao Q. To's medical license number?
Dr. To holds Washington license 61426281.
Which hospitals is Dr. Hao Q. To affiliated with?
Dr. To practices at UW Medical Center - Montlake in Seattle, Washington. Dmand AI links Dr. To to 1 more hospital.
What drugs does Dr. Hao Q. To prescribe most?
In 2024 Medicare Part D data, Dr. To's most prescribed drugs by claims were Losartan Potassium and Atorvastatin Calcium.
How long has Dr. Hao Q. To been practicing?
Dr. To's NPI was assigned in 2023.
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