Stephen Knowles
NPI 1407484009 · Certified Registered Nurse Anesthetist · Semmes, AL
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Knowles is a Certified Registered Nurse Anesthetist provider in Semmes, AL (NPI 1407484009).
Provider details
- NPI number
- 1407484009
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1-155739 (AL)
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
6 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.
$109 across 5 records (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
- 2020-03-30
- Last updated
- 2023-11-14
- Certified
- 2023-11-14
Frequently asked questions
- What is Stephen Knowles's NPI number?
- Stephen Knowles's National Provider Identifier (NPI) is 1407484009, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Knowles's specialty?
- Stephen Knowles is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephen Knowles located?
- Stephen Knowles's practice location on file with NPPES is 7962 Woodland Hills Dr, Semmes, AL 36575-7440.
- What is Stephen Knowles's phone number?
- The practice phone number listed in the NPPES registry for Stephen Knowles is (251) 423-2816.
- Does Stephen Knowles accept Medicare?
- Stephen Knowles is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Knowles's NPI active?
- Yes — Stephen Knowles's NPI (1407484009) is active in the NPPES registry as of the last update on 2023-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.