Tobias A. Mattei, MD

Medicare activity in 2024

Official CMS public-use data for Tobias A. Mattei, 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.

Most frequent services

1. Fusion of additional segment of spine (22614)41 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)19 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)19 services
4. Placement of stabilizing device to back, 3-6 spine bone segments (22842)14 services
5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)14 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 cholesterol75%
• Arthritis75%
• Anxiety47%
• Depression38%
• Diabetes35%

Hospitals where Tobias A. Mattei works

Medicare's Facility Affiliation Data lists Tobias A. Mattei 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.

• Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 260077
• Mercy Hospital SoutheastCape Girardeau, MO · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 260110
• Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260020
• SSM Health Saint Louis University HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 260105
• SSM Health St Mary's Hospital - St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260091

Practice locations

Addresses where Tobias A. Mattei is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 10012 Kennerly Rd, Suite 400Saint Louis, MO 63128 (314) 543‑9999
• 10101 Woodfield LnSaint Louis, MO 63132 (608) 280‑4647
• 1201 S Grand BlvdSaint Louis, MO 63104 (314) 617‑2000
• 1225 S Grand BlvdSaint Louis, MO 63104
• 6420 Clayton RdSaint Louis, MO 63117 (314) 768‑8208

Group practices

Medicare enrollment lists Tobias A. Mattei as a member of these groups (CMS data updated October 2, 2026).

• SSM Health Care Group940 clinicians in the group
• Mercy Clinic Surgical Specialists LLC182 clinicians in the group

Specialties

• Neurosurgeryprimary

Find other Neurosurgery doctors in Missouri →

Other neurosurgeons in Saint Louis

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

• Justin M. Sweeney, MD
• Daniel M. Aaronson, MD
• Kurt M. Eichholz, MD
• Joanna M. Kemp, MD
• Souheil Haddad, MD
• Philippe Mercier, MD
• Tanya M. Quinn, MD
• John A. Albers, MD

All neurosurgeons in Saint Louis →

Other clinicians in SSM Health Care Group

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

• Mark S. Dykewicz, MD
• Timothy G. Ying, DO
• Zarir M. Ahmed, DO
• Helen M. Pappa, MD
• Ajit S. Nagra, MD
• John Kral, PA

Clinician information

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