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Family Practice

Siatta B. Dunbar, DO

Works at hospitals in Albany, OR · Oregon

Summary

Dr. Siatta B. Dunbar, DO is a family doctor at 11900 SW Greenburg Rd, Tigard, OR 97223. Phone: (503) 620-5556. May accept Medicare assignment. In 2024, Siatta B. Dunbar had 73 Original Medicare patients and 78 services. NPI 1528358793. 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: Family doctor (Medicare lists Family Practice)
  • Address: 11900 SW Greenburg Rd, Tigard, OR 97223 · Directions
  • Phone: (503) 620‑5556
  • Medicare: May accept Medicare assignment
  • Hospital: Samaritan Albany General Hospital
  • Group practice: Cynthia Gulick PC
  • Medical school: Touro Un Col Of Osteopathic Medicine, New York · graduated 2011 (15 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Siatta B. Dunbar, 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 Siatta B. Dunbar accept Medicare assignment?
Medicare's clinician data says Siatta B. Dunbar may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Siatta B. Dunbar see?
In 2024, CMS data shows 73 Original Medicare patients and 78 services for Siatta B. Dunbar. This counts Original Medicare only and measures volume, not quality.
What is Siatta B. Dunbar's NPI number?
1528358793. 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 Siatta B. Dunbar, 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 patients73
Services billed to Medicare78
Different services or procedures8
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)33 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)25 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 pressure71%
  • High cholesterol53%
  • Arthritis37%
  • Anxiety34%
  • Depression27%
  • Diabetes23%

Hospitals where Siatta B. Dunbar works

Medicare's Facility Affiliation Data lists Siatta B. Dunbar 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 Siatta B. Dunbar is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Siatta B. Dunbar as a member of this group (CMS data updated October 2, 2026).

  • Cynthia Gulick PC18 clinicians in the group

Specialties

Find other Family Practice doctors in Oregon →

Other family doctors in Tigard

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

All family doctors in Tigard →

Other clinicians in Cynthia Gulick PC

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

Clinician information

CredentialDO
Medical schoolTouro Un Col Of Osteopathic Medicine, New York
Graduation year2011 (15 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1528358793
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