MR. LEWIS D GRIFFITH ACNP
NPI 1821314451
Nurse Practitioner - Acute Care in Saint Louis, MO
About Mr. Lewis D Griffith Acnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. LEWIS D GRIFFITH ACNP (NPI 1821314451) is an individual acute care provider in Saint Louis, Missouri, licensed in Missouri (2010011530) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mr. Lewis D Griffith Acnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Lewis Griffith reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 1,133 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 77 clinicians in this Medicare group
Bridgeton, MO 63044
- Reassigned Medicare billing, Illinois enrollment
- 419 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 255 clinicians in this Medicare group
Quincy, IL 62301
- Reassigned Medicare billing, Illinois enrollment
- 81 clinicians in this Medicare group
Aurora, IL 60504
- Reassigned Medicare billing, Illinois enrollment
- 96 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Lewis Griffith's NPI number?
The NPI number for Lewis Griffith is 1821314451. It was assigned to this individual provider in the NPPES registry on April 7, 2010.
Where is Lewis Griffith located?
Lewis Griffith practices at 1 Barnes Jewish Hospital Plz Div Im Cardiology, Saint Louis, MO 63110. The listed phone number is (314) 362-1291.
What is Lewis Griffith's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Lewis Griffith enrolled in Medicare?
Yes. Lewis Griffith is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Lewis Griffith's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lewis Griffith reassigns Medicare benefits to 6 organizations: Washington University (Saint Louis, MO), Mercy Clinic Adult Critical Care, LLC (Saint Louis, MO), Sound Physicians Of Illinois, LLC (Bridgeton, MO), Cogent Healthcare Of Missouri, Inc (Fenton, MO), Cogent Healthcare Of Illinois, LLC (Quincy, IL) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lewis Griffith's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lewis Griffith accept?
Health plans from Cox HealthPlans and UnitedHealthcare list Lewis Griffith as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Lewis Griffith was last updated on September 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.