Di Deng
Family Medicine Physician · Portland, OR
Di Deng is a family medicine physician with a practice address in Portland, Oregon, and NPI 1427589019, issued on Mar 24, 2017. Check the license (Oregon MD204600, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Di Deng
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD204600 OR
Self-reported in NPPES; status is on the state search - Practice location
- 19500 SE Stark St, Portland, OR 97233
- Phone
- (800) 813-2000
- Enumerated
- Mar 24, 2017
- Record last updated
- Feb 12, 2026
- Medicare enrollment
- Enrolled (PECOS I20211013003406); accepts Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 2017
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 19500 SE Stark St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Merrill Ahrens, MDInternal Medicine Physician1194839225
- Christopher Alaka, RPH, C.C.R.APharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1083982706
- Nicolle AsencioFamily Nurse Practitioner1225753692
- Richard Babal, MANAGEROptician1295824282
- Thomas Beaver, M.D.Internal Medicine Physician1215019112
- Jennifer Bishop, MDInternal Medicine Physician1548284557
Verify Di Deng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD204600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average family medicine physician in 2024
3,066 Medicare Part D claims for 470 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 195 claims were for opioids.
Most prescribed
- Atorvastatin Calcium193 claims
- Losartan Potassium157 claims
- Amlodipine Besylate121 claims
- Lisinopril116 claims
- Levothyroxine Sodium89 claims
- Metformin Hcl84 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
- Kaiser Foundation Health Plan OF The NorthwestPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Di Deng among 2,847 family medicine physician records in Oregon
Di Deng is one of 2,847 family medicine physician records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2017 · median 2009 among the 1,671 with a school on file
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
561 family medicine physician records list a practice address in Portland
They are 561 of the 42,088 NPPES records with a practice address in Portland, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Portland → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Susanne Bobenrieth, M.D.Portland, OR 972331871577742
- Anong Burke, MDPortland, OR 972331932205556
- Daniel Copp, MDPortland, OR 972331093903700
- Audrey Crist, MDPortland, OR 972331790888907
- Peter Hatcher, MDPortland, OR 972331356492979
- Margaret Hayes, MDPortland, OR 972331437164951
- Lorissa Klaus, M.D.Portland, OR 972331831296979
- John Loomis, MDPortland, OR 972331487618781
Common questions
What is Di Deng's NPI number?
Di Deng's National Provider Identifier (NPI) is 1427589019, issued on Mar 24, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Di Deng located?
The NPPES record lists a practice address at 19500 SE Stark St, Portland, OR, 97233. Phone: (800) 813-2000. Providers update this record themselves, so call before visiting.
How can I verify Di Deng's license?
NPPES lists Oregon license number MD204600, 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 Di Deng prescribe under Medicare Part D?
In 2024, Di Deng had 3,066 Medicare Part D claims for 470 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.