Cynthia Bayer, CRNA
NPI 1407818164 · 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)
Cynthia Bayer, CRNA is a Certified Registered Nurse Anesthetist provider in Knoxville, TN (NPI 1407818164).
Provider details
- NPI number
- 1407818164
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Female
- Sole proprietor
- Yes
- License
- 76389 (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 tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-06
- Last updated
- 2014-03-24
Frequently asked questions
- What is Cynthia Bayer's NPI number?
- Cynthia Bayer's National Provider Identifier (NPI) is 1407818164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Bayer's specialty?
- Cynthia Bayer is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cynthia Bayer located?
- Cynthia Bayer's practice location on file with NPPES is 11133 Windward Dr, Knoxville, TN 37934-4049.
- What is Cynthia Bayer's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Bayer is (865) 806-4948.
- Does Cynthia Bayer accept Medicare?
- Cynthia Bayer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Bayer's NPI active?
- Yes — Cynthia Bayer's NPI (1407818164) is active in the NPPES registry as of the last update on 2014-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.