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Hematology/Oncology

Demet Gokalp Yasar, MD

Works at hospitals in Green Bay, WI · Marinette, WI · Minocqua, WI · Wisconsin

Summary

Dr. Demet Gokalp Yasar, MD is a hematologist-oncologist at 2845 Greenbrier Rd, Green Bay, WI 54311. Phone: (920) 288-8000. Accepts Medicare assignment. In 2024, Demet Gokalp Yasar had 450 Original Medicare patients and 1,399 services. NPI 1437381191. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Demet Gokalp Yasar, 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 Demet Gokalp Yasar accept Medicare assignment?
Yes. Medicare's clinician data says Demet Gokalp Yasar 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 Demet Gokalp Yasar see?
In 2024, CMS data shows 450 Original Medicare patients and 1,399 services for Demet Gokalp Yasar. This counts Original Medicare only and measures volume, not quality.
What is Demet Gokalp Yasar's NPI number?
1437381191. 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 Demet Gokalp Yasar, 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 patients450
Services billed to Medicare1,399
Different services or procedures19
Participating Medicare providerYes
Average age of these patients75

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)676 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)271 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)250 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)40 services
  5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)36 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 pressure75%
  • High cholesterol69%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)46%
  • Chronic kidney disease34%
  • Arthritis33%
  • Ischemic heart disease32%

Hospitals where Demet Gokalp Yasar works

Medicare's Facility Affiliation Data lists Demet Gokalp Yasar 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 Demet Gokalp Yasar is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Demet Gokalp Yasar as a member of these groups (CMS data updated October 2, 2026).

  • Aurora Medical Group, Inc.3,813 clinicians in the group
  • BayCare Aurora LLC194 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Wisconsin →

Other hematologist-oncologists in Green Bay

Clinicians with the same Medicare primary specialty in Green Bay, WI — not a recommendation.

All hematologist-oncologists in Green Bay →

Other clinicians in Aurora Medical Group, Inc.

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

Clinician information

CredentialMD
Graduation year1997 (29 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1437381191
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