Dr. Wijan Prapong, MD
- Medicare services, 2023
- 14
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 10,607
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 500 NE Multnomah St, Portland, OR 97232
- Practice phone
- Call (503) 813-2440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Foundation Health Plan of the Northwest
Portland, Oregon
Find Dr. Prapong's professional email, personal email and mobile number
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Dr. Wijan Prapong is an internist in Portland, Oregon
Dr. Prapong practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon.
Dr. Prapong's NPI, 1184804437, was assigned on November 4, 2007. Dr. Prapong graduated from Stanford University School of Medicine in 2006. Dr. Prapong holds Oregon license MD126187.
- NPI
- 1184804437NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426195348
- NPI enumeration date
- November 4, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 813-2440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Wijan Prapong practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon
Dr. Prapong's primary practice is Kaiser Foundation Health Plan of the Northwest, at 500 NE Multnomah St, Portland, OR 97232 in Multnomah County. The practice phone is (503) 813-2440.
- Kaiser Foundation Health Plan of the Northwest500 NE Multnomah St, Portland, OR 97232 · Multnomah CountyPhone(503) 813-2440
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Wijan Prapong is affiliated with 2 sites of care and 1 medical group
Dr. Prapong's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. The medical group on file is Kaiser Permanente Northwest. Dmand AI also links Dr. Prapong to 1 more group practice or clinic, 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. Wijan Prapong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Prapong practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Foundation Health Plan of the Northwest | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Wijan Prapong is one of 1,680 internists in Oregon
Internal medicine is Dr. Prapong's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Prapong's licenses on file in 2 states: Oregon and California.
Specialties and state licenses
- Internal medicine, OregonPrimary
- California license
Internists near Dr. Prapong
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. Wijan Prapong billed Medicare for 14 services in 2023
CMS data shows 14 Medicare services from Dr. Prapong across 1 procedure code in 2023, all of them office visits, for 17 Medicare patients. Medicare paid $657 for them. Every service was in an office.
Dr. Prapong's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 222023: 1436%
Dr. Prapong compared with the Oregon median for internists, 2023
- Dr. Prapong
- Oregon median
- Medicare services
- 14vs 30095% below
- Medicare patients
- 17vs 13287% below
- Part D claims
- 9,969vs 22244.9 times
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Dr. Prapong's most billed Medicare procedure codes, 2023
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. Wijan Prapong treated 17 Medicare patients in 2024, average age 62
CMS counts 17 Medicare patients who saw Dr. Prapong in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 0.81, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Prapong's median patient age at 51, with 52% women.
Dr. Prapong's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Prapong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Wijan Prapong wrote 10,607 Medicare Part D claims in 2024
In 2024, Dr. Prapong wrote 10,607 Medicare Part D claims for 660 patients. 88% of them were for generic drugs. CMS names the drug for 9,969 of them, across 159 drugs with 11 or more claims each, at $500,971 in total drug cost. In 2023, CMS named 9,141 claims across 150 drugs.
Dr. Prapong's Part D claims by kind of drug, 2024
- Generic9,349 claims88%
- Brand-name1,141 claims11%
- Other117 claims1%
Dr. Prapong'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. Prapong's Part D claims, 2024
- Opioids12%1,304 of 10,607 claims
- Antibiotics2%248 of 10,607 claims
- Antipsychotics, patients 65 and over1%65 of 10,607 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: 9,1412024: 9,9699%
Drugs named by CMS: 159 in 2024, 150 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. Wijan Prapong takes part in Medicare
Dr. Prapong 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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Dr. Wijan Prapong graduated from Stanford University School of Medicine
Dr. Prapong graduated from Stanford University School of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Wijan Prapong'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 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) |
| 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. Wijan Prapong
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. Wijan Prapong's NPI number?
Dr. Wijan Prapong's NPI number is 1184804437. It was assigned on November 4, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Wijan Prapong?
Dr. Wijan Prapong is an internist in Portland, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Wijan Prapong practice?
Dr. Prapong practices at 500 NE Multnomah St, Portland, OR 97232. Dr. Prapong's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. Dmand AI also links Dr. Prapong to 1 group practice or clinic.
What is Dr. Wijan Prapong's office phone number?
The practice phone on file for Dr. Prapong is (503) 813-2440.
What is Dr. Wijan Prapong's medical license number?
Dr. Prapong holds Oregon license MD126187, one of the licenses on file in 2 states.
Which states has Dr. Wijan Prapong been licensed in?
Dmand AI has state licenses on file for Dr. Prapong in Oregon and California.
What medical group is Dr. Wijan Prapong part of?
Dr. Prapong is linked to Kaiser Permanente Northwest.
Does Dr. Wijan Prapong accept Medicare?
Yes. CMS data shows Dr. Prapong billed Medicare for 14 services in 2023, and Dr. Prapong accepts Medicare assignment.
How many Medicare patients does Dr. Wijan Prapong see?
CMS counts 17 Medicare patients who saw Dr. Prapong in 2024, with an average age of 62.
What services does Dr. Wijan Prapong bill to Medicare?
In 2023, Dr. Prapong's most billed Medicare services were office visit, established patient (99213).
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Where did Dr. Wijan Prapong go to medical school?
Dr. Prapong graduated from Stanford University School of Medicine in 2006.
What drugs does Dr. Wijan Prapong prescribe most?
In 2024 Medicare Part D data, Dr. Prapong's most prescribed drugs by claims were Oxycodone HCl, Atorvastatin Calcium and Hydrocodone-Acetaminophen.
How long has Dr. Wijan Prapong been practicing?
Dr. Prapong graduated from medical school in 2006, 20 years ago.
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