MR. WILLIAM PEACH III LMHC
NPI 1255788972
Counselor - Mental Health in Waterloo, IA
About Mr. William Peach Iii Lmhc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. WILLIAM PEACH III LMHC (NPI 1255788972) is an individual mental health provider in Waterloo, Iowa, licensed in Iowa (079765) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2015).
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 Peach Iii Lmhc 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 Peach reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Waterloo, IA 50702
- Reassigned Medicare billing, Iowa enrollment
- 46 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.
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 Peach's NPI number?
The NPI number for William Peach is 1255788972. It was assigned to this individual provider in the NPPES registry on May 23, 2016.
Where is William Peach located?
William Peach practices at 3606 Kimball Ave Ste 9, Waterloo, IA 50702. The listed phone number is (319) 939-4599.
What is William Peach's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is William Peach enrolled in Medicare?
Yes. William Peach 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 Peach's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Peach reassigns Medicare benefits to Peoples Community Health Clinic, Inc (Waterloo, IA). 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 Peach's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Peach accept?
Health plans from Oscar Health, Oscar Insurance Company, UnitedHealthcare and Wellmark Health Plan of Iowa, Inc. list William Peach 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 Peach was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mr. William Peach III, LMHC · NPI 1255788972
Mental Health provider in Waterloo, Iowa. Individual provider, active in the CMS NPPES registry since May 23, 2016.
## Identity
- **NPI:** 1255788972 (Entity type: Individual)
- **Enumerated:** May 23, 2016
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 079765 (Iowa)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3606 KIMBALL AVE STE 9, Waterloo, IA 50702-5732
- **Phone:** (319) 939-4599
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Peoples Community Health Clinic, Inc (NPI 1629684709, Waterloo, IA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** May 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1255788972) · Data from the CMS NPPES public registry.