NPPES file of Aug 9, 2026

Lanceford M. Chong, MD

Radiation Oncology Physician · Portland, OR

Lanceford M. Chong, MD is a radiation oncology physician with a practice address in Portland, Oregon, and NPI 1821001736, issued on Aug 14, 2006. Check the license (Oregon MD184236, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821001736
Name
Lanceford M. Chong
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
MD184236 OR
Self-reported in NPPES; status is on the state search
Practice location
3181 SW Sam Jackson Park RD, Portland, OR 97239
Phone
(503) 494-8756
Enumerated
Aug 14, 2006
Record last updated
Aug 15, 2023
Medicaid ID
02668642 NY
Medicare enrollment
Enrolled (PECOS I20240829001080); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 1978
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3181 SW Sam Jackson Park RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alex AamodtCritical Care Medicine Registered Nurse1154257590
  2. Jefferson Abaricia, MD, PHDStudent in an Organized Health Care Education/Training Program1073215711
  3. Kenneth Abbey, MDAnesthesiology Physician1588779342
  4. Matthew Abbott, PA-CMedical Physician Assistant1154738003
  5. Ayah Abdelsalam Megahed, MD, MSCVascular & Interventional Radiology Physician1023503596
  6. Obada Abdulrazzak, MDStudent in an Organized Health Care Education/Training Program1598567430

Verify Lanceford M. Chong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD184236
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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57% fewer Medicare Part D claims than the average radiation oncology physician in 2024

57 Medicare Part D claims for 33 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Lanceford Chong57
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl15 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Swedishamerican HospitalRockford, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lanceford M. Chong among 115 radiation oncology physician records in Oregon

Lanceford M. Chong, MD is one of 115 radiation oncology physician records with a practice address in Oregon. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 23% of them.

  • NPI issued2006 · 23% of these records are older, 48% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1978 · median 2006 among the 85 with a school on file
  • Record last updated2023 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Oregon

There are 115 radiation oncology physician records in Oregon.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Eric Chang, M.D.Portland, OR 972391114304870
  2. Aaron Grossberg, MD, PHDPortland, OR 972391164775334
  3. Mohammad Hissourou, MDPortland, OR 972391538664057
  4. John Holland, MDPortland, OR 972391104834662
  5. Arthur Hung, MDPortland, OR 972391609881119
  6. Jenna Kahn, M.D.Portland, OR 972391366855793
  7. Nima Nabavizadeh, MDPortland, OR 972391538453741
  8. Sahar Rosenbaum, MDPortland, OR 972391477537512

Common questions

What is Lanceford M. Chong, MD's NPI number?

Lanceford M. Chong, MD's National Provider Identifier (NPI) is 1821001736, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lanceford M. Chong, MD located?

The NPPES record lists a practice address at 3181 SW Sam Jackson Park RD, Portland, OR, 97239. Phone: (503) 494-8756. Providers update this record themselves, so call before visiting.

How can I verify Lanceford M. Chong, MD's license?

NPPES lists Oregon license number MD184236, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lanceford M. Chong, MD prescribe under Medicare Part D?

In 2024, Lanceford M. Chong, MD had 57 Medicare Part D claims for 33 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.