Dr. Duy Nelson Dao, DO, MPH, MS
- Medicare services, 2024
- 482
- Medicare patients, 2024
- 308
- Part D claims, 2024
- 220
- Hospital affiliations
- 2
- Medical groups
- 2
- Practice address
- 1615 Delaware Street, Longview, WA 98632
- Practice phone
- Call (360) 414-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Dao's professional email, personal email and mobile number
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Dr. Duy Nelson Dao is an emergency medicine physician in Longview, Washington
Dr. Dao practices at PeaceHealth St. John Medical Center in Longview, Washington, part of PeaceHealth.
Dr. Dao's NPI, 1356966501, was assigned on June 13, 2020. Dr. Dao holds Washington license OP61382543.
- NPI
- 1356966501NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456774306
- NPI enumeration date
- June 13, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (360) 414-2000
- 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)
Dr. Duy Nelson Dao practices at PeaceHealth St. John Medical Center in Longview, Washington
Dr. Dao's primary practice is PeaceHealth St. John Medical Center, at 1615 Delaware Street, Longview, WA 98632 in Cowlitz County. The practice phone is (360) 414-2000.
- PeaceHealth St. John Medical Center1615 Delaware Street, Longview, WA 98632 · Cowlitz CountyPhone(360) 414-2000
Source: Dmand AI Affiliation Data
Dr. Duy Nelson Dao is affiliated with 3 sites of care and 2 medical groups
Dr. Dao's primary practice is PeaceHealth St. John Medical Center in Longview, Washington, part of PeaceHealth. Dr. Dao is also affiliated with WellSpan York Hospital. The medical group on file is Vituity. Dmand AI also links Dr. Dao to 1 more 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. Duy Nelson Dao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dao practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| PeaceHealth St. John Medical Center | Available with a free account |
| +2 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 PeaceHealth and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Duy Nelson Dao is one of 1,408 emergency medicine physicians in Washington
Emergency medicine is Dr. Dao's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Dao's licenses on file in 3 states: Washington, Oregon and Pennsylvania.
Specialties and state licenses
- Emergency medicine, WashingtonPrimary
- Oregon license
- Pennsylvania license
Emergency medicine physicians near Dr. Dao
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. Duy Nelson Dao billed Medicare for 482 services in 2024
CMS data shows 482 Medicare services from Dr. Dao across 4 procedure codes in 2024, for 308 Medicare patients. Medicare paid $40,684 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Dao's Medicare services by type, 2024
- Office and hospital visits311
- Tests and treatments171
Dr. Dao compared with the Washington median for emergency medicine physicians, 2024
- Dr. Dao
- Washington median
- Medicare services
- 482vs 26880% above
- Medicare patients
- 308vs 22338% above
- Part D claims
- 99vs 6162% above
Medians across 1,440 emergency medicine physicians in Washington with Dmand AI profiles that report each measure.
Dr. Dao'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. Duy Nelson Dao treated 308 Medicare patients in 2024, average age 75
CMS counts 308 Medicare patients who saw Dr. Dao in 2024. The largest group is 75 to 84, with 97 patients. 75% of them have high blood pressure, and 64% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.78, 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. Dao's median patient age at 66, with 58% women.
Dr. Dao's Medicare patients by age, 2024
Dr. Dao's Medicare patients by sex, 2024
- Women16855%
- Men14045%
Chronic conditions among Dr. Dao's Medicare patients, 2024
- High blood pressure75%
- High cholesterol64%
- Arthritis45%
- Chronic kidney disease38%
- Mood disorders37%
- Heart failure33%
- Ischemic heart disease33%
- Atrial fibrillation32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dao's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Duy Nelson Dao wrote 220 Medicare Part D claims in 2024
In 2024, Dr. Dao wrote 220 Medicare Part D claims for 157 patients. 95% of them were for generic drugs. CMS names the drug for 99 of them, across 5 drugs with 11 or more claims each, at $742 in total drug cost. In 2023, CMS named 48 claims across 3 drugs.
Dr. Dao's Part D claims by kind of drug, 2024
- Generic208 claims95%
- Brand-name12 claims5%
Dr. Dao'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. Dao's Part D claims, 2024
- Opioids14%30 of 220 claims
- Antibiotics41%91 of 220 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: 482024: 99106%
Drugs named by CMS: 5 in 2024, 3 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
How Dr. Duy Nelson Dao takes part in Medicare
Dr. Dao accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Dr. Duy Nelson Dao'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) |
| 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. Duy Nelson Dao
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. Duy Nelson Dao's NPI number?
Dr. Duy Nelson Dao's NPI number is 1356966501. It was assigned on June 13, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Duy Nelson Dao?
Dr. Duy Nelson Dao is an emergency medicine physician in Longview, Washington. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Duy Nelson Dao practice?
Dr. Dao practices at 1615 Delaware Street, Longview, WA 98632. Dr. Dao's primary practice is PeaceHealth St. John Medical Center in Longview, Washington, part of PeaceHealth. Dmand AI also links Dr. Dao to 1 group practice or clinic and 1 medical group.
What is Dr. Duy Nelson Dao's office phone number?
The practice phone on file for Dr. Dao is (360) 414-2000.
What is Dr. Duy Nelson Dao's medical license number?
Dr. Dao holds Washington license OP61382543, one of the licenses on file in 3 states.
Which states has Dr. Duy Nelson Dao been licensed in?
Dmand AI has state licenses on file for Dr. Dao in Washington, Oregon and Pennsylvania.
Which hospitals is Dr. Duy Nelson Dao affiliated with?
Dr. Dao practices at PeaceHealth St. John Medical Center in Longview, Washington. Dr. Dao is also affiliated with WellSpan York Hospital.
What medical group is Dr. Duy Nelson Dao part of?
Dr. Dao is linked to Vituity. Dmand AI links Dr. Dao to 1 more medical group.
Does Dr. Duy Nelson Dao accept Medicare?
Yes. CMS data shows Dr. Dao billed Medicare for 482 services in 2024, and Dr. Dao accepts Medicare assignment.
How many Medicare patients does Dr. Duy Nelson Dao see?
CMS counts 308 Medicare patients who saw Dr. Dao in 2024, with an average age of 75.
Show 3 more questionsShow fewer questions
What services does Dr. Duy Nelson Dao bill to Medicare?
In 2024, Dr. Dao's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
What drugs does Dr. Duy Nelson Dao prescribe most?
In 2024 Medicare Part D data, Dr. Dao's most prescribed drugs by claims were Cephalexin, Oxycodone HCl and Ondansetron ODT.
How long has Dr. Duy Nelson Dao been practicing?
Dr. Dao graduated from medical school in 2020, 6 years ago.
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