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Internal Medicine

Reewen C. Dsouza-Kamath, MD

Works at hospitals in Portland, OR · Oregon

Summary

Dr. Reewen C. Dsouza-Kamath, MD is an internal medicine doctor at 15950 SW Millikan Way, Beaverton, OR 97003. Phone: (503) 646-0161. Accepts Medicare assignment. In 2024, Reewen C. Dsouza-Kamath had 106 Original Medicare patients and 764 services. NPI 1831192756. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 15950 SW Millikan Way, Beaverton, OR 97003 · Directions (3 more locations)
  • Phone: (503) 646‑0161
  • Medicare: Accepts Medicare assignment
  • Hospital: Providence St Vincent Medical Center
  • Group practice: Portland Clinic
  • Medical school: graduated 1996 (30 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Reewen C. Dsouza-Kamath, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Reewen C. Dsouza-Kamath accept Medicare assignment?
Yes. Medicare's clinician data says Reewen C. Dsouza-Kamath accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Reewen C. Dsouza-Kamath see?
In 2024, CMS data shows 106 Original Medicare patients and 764 services for Reewen C. Dsouza-Kamath. This counts Original Medicare only and measures volume, not quality.
What is Reewen C. Dsouza-Kamath's NPI number?
1831192756. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Reewen C. Dsouza-Kamath, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients106
Services billed to Medicare764
Different services or procedures59
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)92 services
  2. Insertion of needle into vein for collection of blood sample (36415)80 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)51 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)49 services
  5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)39 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure58%
  • High cholesterol52%
  • Arthritis31%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)23%
  • Diabetes22%
  • Ischemic heart disease14%

Hospitals where Reewen C. Dsouza-Kamath works

Medicare's Facility Affiliation Data lists Reewen C. Dsouza-Kamath at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Reewen C. Dsouza-Kamath is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Reewen C. Dsouza-Kamath as a member of this group (CMS data updated October 2, 2026).

  • Portland Clinic94 clinicians in the group

Specialties

Find other Internal Medicine doctors in Oregon →

Other internal medicine doctors in Beaverton

Clinicians with the same Medicare primary specialty in Beaverton, OR — not a recommendation.

All internal medicine doctors in Beaverton →

Other clinicians in Portland Clinic

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1996 (30 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1831192756
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians