MR. WILLIAM NATE LETTERMAN MSW, LCSW
NPI 1578577193
Social Worker - Clinical in Farmington, MO
About Mr. William Nate Letterman Msw, Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. WILLIAM NATE LETTERMAN MSW, LCSW (NPI 1578577193) is an individual clinical provider in Farmington, Missouri, licensed in Missouri (2002031993) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2000).
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. William Nate Letterman Msw, Lcsw 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 Reassignment
Medicare enrollment records show William Letterman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Farmington, MO 63640
- Reassigned Medicare billing, Missouri enrollment
- Also billed through NPI 1669485868 (Missouri)
- 88 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63640 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 William Letterman's NPI number?
The NPI number for William Letterman is 1578577193. It was assigned to this individual provider in the NPPES registry on July 28, 2006.
Where is William Letterman located?
William Letterman practices at 1085 Maple St., Farmington, MO 63640. The listed phone number is (573) 756-5353.
What is William Letterman's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is William Letterman enrolled in Medicare?
Yes. William Letterman 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 organization bills Medicare for William Letterman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Letterman reassigns Medicare benefits to Bjc Behavioral Health (Farmington, MO). The 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 William Letterman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Letterman accept?
Health plans from Medica and Oscar Insurance Company list William Letterman 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 William Letterman was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.
# Mr. William Nate Letterman, MSW, LCSW · NPI 1578577193
Clinical provider in Farmington, Missouri. Individual provider, active in the CMS NPPES registry since July 28, 2006.
## Identity
- **NPI:** 1578577193 (Entity type: Individual)
- **Enumerated:** July 28, 2006
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 2002031993 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1085 MAPLE ST., Farmington, MO 63640
- **Phone:** (573) 756-5353 · **Fax:** (573) 756-4557
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Bjc Behavioral Health (NPI 1801807847, Farmington, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1578577193) · Data from the CMS NPPES public registry.