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Orthopedic Surgery

Gregory J. Della Rocca, MD

Works at hospitals in Columbia, MO · Missouri

Summary

Dr. Gregory J. Della Rocca, MD is an orthopedic surgeon at 1 Hospital Dr, Columbia, MO 65212. Phone: (573) 882-4141. Accepts Medicare assignment. In 2024, Gregory J. Della Rocca had 115 Original Medicare patients and 225 services. NPI 1053360016. 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: 1 Hospital Dr, Columbia, MO 65212 · Directions (1 more location)
  • Phone: (573) 882‑4141
  • Medicare: Accepts Medicare assignment
  • Hospital: University of Missouri Health Care
  • Group practice: The Curators of the University of Missouri
  • Medical school: Duke University School Of Medicine · graduated 1999 (27 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Gregory J. Della Rocca, 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 Gregory J. Della Rocca accept Medicare assignment?
Yes. Medicare's clinician data says Gregory J. Della Rocca 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 Gregory J. Della Rocca see?
In 2024, CMS data shows 115 Original Medicare patients and 225 services for Gregory J. Della Rocca. This counts Original Medicare only and measures volume, not quality.
What is Gregory J. Della Rocca's NPI number?
1053360016. 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 Gregory J. Della Rocca, 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 patients115
Services billed to Medicare225
Different services or procedures83
Participating Medicare providerYes
Average age of these patients75

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)46 services
  2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)19 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)12 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 cholesterol73%
  • Arthritis69%
  • Depression44%
  • Anxiety42%
  • Diabetes38%

Hospitals where Gregory J. Della Rocca works

Medicare's Facility Affiliation Data lists Gregory J. Della Rocca 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 Gregory J. Della Rocca is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gregory J. Della Rocca as a member of this group (CMS data updated October 2, 2026).

  • The Curators of the University of Missouri1,131 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Missouri →

Other orthopedic surgeons in Columbia

Clinicians with the same Medicare primary specialty in Columbia, MO — not a recommendation.

All orthopedic surgeons in Columbia →

Other clinicians in The Curators of the University of Missouri

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

Clinician information

CredentialMD
Medical schoolDuke University School Of Medicine
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053360016
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