Tristan Freiling, D.O.
NPI 1215381264 · Anesthesiology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tristan Freiling, D.O. is a Anesthesiology Physician provider in Saint Louis, MO (NPI 1215381264).
Provider details
- NPI number
- 1215381264
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 2021013176 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
239 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 48 | $76 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 36 | $42 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 35 | $185 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 23 | $74 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 22 | $80 |
| Anesthesia for Procedure to Correct Abnormal Heart Rhythm00410 | 21 | $95 |
Practice location
Mailing address
Additional practice locations (1)
- 5841 S Maryland AveMc 4028Chicago, IL 60637-1447Phone: (773) 834-0063
Registry dates
- Enumerated
- 2016-04-15
- Last updated
- 2021-06-11
- Certified
- 2021-06-11
Frequently asked questions
- What is Tristan Freiling's NPI number?
- Tristan Freiling's National Provider Identifier (NPI) is 1215381264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tristan Freiling's specialty?
- Tristan Freiling is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Tristan Freiling located?
- Tristan Freiling's practice location on file with NPPES is 615 S New Ballas Rd, Saint Louis, MO 63141-8221.
- What is Tristan Freiling's phone number?
- The practice phone number listed in the NPPES registry for Tristan Freiling is (636) 386-9224.
- Does Tristan Freiling accept Medicare?
- Tristan Freiling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tristan Freiling's NPI active?
- Yes — Tristan Freiling's NPI (1215381264) is active in the NPPES registry as of the last update on 2021-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.