NPPES file of Aug 9, 2026

Yahaira Lucia Lopez Arredondo, MD

Internal Medicine Physician · Portland, OR

Yahaira Lucia Lopez Arredondo, MD is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1912203373, issued on Feb 2, 2011. Check the license (Oregon MD228338, 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
1912203373
Name
Yahaira Lucia Lopez Arredondo
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
MD228338 OR
R5426 TX
Self-reported in NPPES; status is on the state search
Practice location
19500 SE Stark St, Portland, OR 97233
Phone
(800) 813-2000
Enumerated
Feb 2, 2011
Record last updated
Mar 4, 2026
Medicare enrollment
Enrolled (PECOS I20260128003523); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Also registered at 19500 SE Stark St

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

  1. Merrill Ahrens, MDInternal Medicine Physician1194839225
  2. Christopher Alaka, RPH, C.C.R.APharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1083982706
  3. Nicolle AsencioFamily Nurse Practitioner1225753692
  4. Richard Babal, MANAGEROptician1295824282
  5. Thomas Beaver, M.D.Internal Medicine Physician1215019112
  6. Jennifer Bishop, MDInternal Medicine Physician1548284557

Verify Yahaira Lucia Lopez Arredondo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD228338
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2% fewer Medicare Part D claims than the average internal medicine physician in 2024

3,098 Medicare Part D claims for 216 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 12 claims were for opioids.

  1. Yahaira Lopez Arredondo3,098
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium162 claims
  2. Amlodipine Besylate156 claims
  3. Metformin Hcl144 claims
  4. Losartan Potassium136 claims
  5. Pantoprazole Sodium121 claims
  6. Hydrochlorothiazide110 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.

Industry payments in 2024: $501.38

19 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Yahaira Lopez Arredondo$501.38
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Kaiser Foundation Health Plan OF The NorthwestVancouver, WA
  2. West Coast Medicine And Cardiology IncFremont, CA

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

Yahaira Lucia Lopez Arredondo among 2,116 internal medicine physician records in Oregon

Yahaira Lucia Lopez Arredondo, MD is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 65% of them.

  • NPI issued2011 · 65% of these records are older, 32% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2005 · median 2008 among the 1,232 with a school on file
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

889 internal medicine physician records list a practice address in Portland

They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Merrill Ahrens, MDPortland, OR 972331194839225
  2. Thomas Beaver, M.D.Portland, OR 972331215019112
  3. Jennifer Bishop, MDPortland, OR 972331548284557
  4. Benjamin Brody, M.D.Portland, OR 972331245243799
  5. Brian Gould, M.D.Portland, OR 972331073535266
  6. Glenn Greeder, MDPortland, OR 972331821184250
  7. June GreenePortland, OR 972331932284346
  8. Max Grishkevich, MDPortland, OR 972331477518637

Common questions

What is Yahaira Lucia Lopez Arredondo, MD's NPI number?

Yahaira Lucia Lopez Arredondo, MD's National Provider Identifier (NPI) is 1912203373, issued on Feb 2, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Yahaira Lucia Lopez Arredondo, MD 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 Yahaira Lucia Lopez Arredondo, MD's license?

NPPES lists Oregon license number MD228338, 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 Yahaira Lucia Lopez Arredondo, MD prescribe under Medicare Part D?

In 2024, Yahaira Lucia Lopez Arredondo, MD had 3,098 Medicare Part D claims for 216 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.