Mark Guidry, CRNA
NPI 1679519748 · Certified Registered Nurse Anesthetist · Knoxville, TN
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Guidry, CRNA is a Certified Registered Nurse Anesthetist provider in Knoxville, TN (NPI 1679519748).
Provider details
- NPI number
- 1679519748
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- 11019 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
72 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 | 24 | $61 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 18 | $49 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 15 | $54 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 15 | $67 |
Typical Medicare-allowed amounts for these services range $49–$67 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (3)
- 256 Fort Sanders West BlvdKnoxville, TN 37922-3355Phone: (865) 244-4580
- 210 Fort Sanders West BlvdKnoxville, TN 37922-3355Phone: (865) 531-5200
- 1901 Clinch AveKnoxville, TN 37916-2307Phone: (865) 541-1111
Registry dates
- Enumerated
- 2006-06-20
- Last updated
- 2018-07-12
Frequently asked questions
- What is Mark Guidry's NPI number?
- Mark Guidry's National Provider Identifier (NPI) is 1679519748, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Guidry's specialty?
- Mark Guidry is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Guidry located?
- Mark Guidry's practice location on file with NPPES is 501 20th St, Knoxville, TN 37916.
- What is Mark Guidry's phone number?
- The practice phone number listed in the NPPES registry for Mark Guidry is (865) 546-8040.
- Does Mark Guidry accept Medicare?
- Mark Guidry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Guidry's NPI active?
- Yes — Mark Guidry's NPI (1679519748) is active in the NPPES registry as of the last update on 2018-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.