WILLIAM N. ARNOLD MD
NPI 1063485902
Psychiatry & Neurology - Psychiatry in Carmel, IN
About William N. Arnold Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM N. ARNOLD MD (NPI 1063485902) is an individual psychiatry provider in Carmel, Indiana, licensed in Indiana (01042483) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Indiana University School Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
William N. Arnold Md 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 Arnold reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Indianapolis, IN 46218
- Reassigned Medicare billing, Indiana enrollment
- 112 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
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 46033 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.
CARMEL, IN 46033
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 Arnold's NPI number?
The NPI number for William Arnold is 1063485902. It was assigned to this individual provider in the NPPES registry on February 10, 2006.
Where is William Arnold located?
William Arnold practices at 38 Twinshore Ct, Carmel, IN 46033. The listed phone number is (317) 796-8316.
What is William Arnold's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is William Arnold enrolled in Medicare?
Yes. William Arnold 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 Arnold's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Arnold reassigns Medicare benefits to State Of Indiana, Auditor Of State (Indianapolis, IN). 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 Arnold's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Arnold accept?
Health plans from CareSource list William Arnold 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 Arnold was last updated on December 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# William N. Arnold, MD · NPI 1063485902
Psychiatry physician in Carmel, Indiana. Individual provider, active in the CMS NPPES registry since February 10, 2006.
## Identity
- **NPI:** 1063485902 (Entity type: Individual)
- **Enumerated:** February 10, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 01042483 (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 38 TWINSHORE CT, Carmel, IN 46033-3642
- **Phone:** (317) 796-8316
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** State Of Indiana, Auditor Of State (NPI 1043338684, Indianapolis, IN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Indiana University School Of Medicine, class of 1986
## Record status
- **NPPES last updated:** December 26, 2023
- **Other identifiers:** Medicaid 100470990 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1063485902) · Data from the CMS NPPES public registry.