Stefan Grenvik, MD
NPI 1770513913 · Anesthesiology Physician · Bristol, TN
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stefan Grenvik, MD is a Anesthesiology Physician provider in Bristol, TN (NPI 1770513913).
Provider details
- NPI number
- 1770513913
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD024364 (TN)
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
120 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 Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 33 | $66 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 18 | $159 |
| Injection of Anesthetic Agent And/Or Steroid Into Other Nerve Or Branch64450 | 16 | $27 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 15 | $54 |
| Anesthesia for Other Procedure on Lower Leg, Ankle, and Foot Bones01480 | 14 | $78 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 13 | $96 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-04
- Last updated
- 2023-03-07
Frequently asked questions
- What is Stefan Grenvik's NPI number?
- Stefan Grenvik's National Provider Identifier (NPI) is 1770513913, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefan Grenvik's specialty?
- Stefan Grenvik is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Stefan Grenvik located?
- Stefan Grenvik's practice location on file with NPPES is 1 Medical Park Blvd, Bristol, TN 37620-7430.
- What is Stefan Grenvik's phone number?
- The practice phone number listed in the NPPES registry for Stefan Grenvik is (423) 968-4540.
- Does Stefan Grenvik accept Medicare?
- Stefan Grenvik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stefan Grenvik's NPI active?
- Yes — Stefan Grenvik's NPI (1770513913) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.