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Orthopedic Surgery

Ying-Ying J. Kao, MD

Works at hospitals in Atlanta, GA · Georgia

Summary

Dr. Ying-Ying J. Kao, MD is an orthopedic surgeon at 1285 Hembree Rd, 200a, Roswell, GA 30076. Phone: (770) 475-2710. Accepts Medicare assignment. In 2024, Ying-Ying J. Kao had 553 Original Medicare patients and 18,252 services. NPI 1891020988. 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: Orthopedic surgeon (Medicare lists Orthopedic Surgery)
  • Address: 1285 Hembree Rd, 200a, Roswell, GA 30076 · Directions (11 more locations)
  • Phone: (770) 475‑2710
  • Medicare: Accepts Medicare assignment
  • Hospitals: Northside Hospital, Saint Joseph's Hospital of Atlanta, Inc
  • Group practice: Physiotherapy Associates Inc (+1 more)
  • Medical school: University Of Chicago, Pritzker School Of Medicine · graduated 2009 (17 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Ying-Ying J. Kao, 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 Ying-Ying J. Kao accept Medicare assignment?
Yes. Medicare's clinician data says Ying-Ying J. Kao 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 Ying-Ying J. Kao see?
In 2024, CMS data shows 553 Original Medicare patients and 18,252 services for Ying-Ying J. Kao. This counts Original Medicare only and measures volume, not quality.
What is Ying-Ying J. Kao's NPI number?
1891020988. 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 Ying-Ying J. Kao, 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 patients553
Services billed to Medicare18,252
Different services or procedures53
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Hyaluronan or derivative, triluron, for intra-articular injection, 1 mg (J7332)10,620 services
  2. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)4,223 services
  3. Aspiration and/or injection of fluid from large joint (20610)983 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)587 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)456 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 cholesterol75%
  • Arthritis75%
  • High blood pressure73%
  • Ischemic heart disease29%
  • Diabetes24%
  • Osteoporosis24%

Hospitals where Ying-Ying J. Kao works

Medicare's Facility Affiliation Data lists Ying-Ying J. Kao 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 Ying-Ying J. Kao is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 12; the Medicare profile lists all.

Group practices

Medicare enrollment lists Ying-Ying J. Kao as a member of these groups (CMS data updated October 2, 2026).

  • Physiotherapy Associates Inc1,460 clinicians in the group
  • Resurgens, LLC196 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Georgia →

Other orthopedic surgeons in Roswell

Clinicians with the same Medicare primary specialty in Roswell, GA — not a recommendation.

All orthopedic surgeons in Roswell →

Other clinicians in Physiotherapy Associates Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Chicago, Pritzker School Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1891020988
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