SIDNEY ANN ALLEN
NPI 1508497124
Social Worker - Clinical in Johnston, IA
About Sidney Ann Allen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIDNEY ANN ALLEN (NPI 1508497124) is an individual clinical provider in Johnston, Iowa, licensed in Iowa (120330) and active in the NPI registry since February 2020. She is enrolled in Medicare PECOS, is affiliated with Mercyone Des Moines Medical Center, and maintains a secondary practice location in Des Moines.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Sidney Ann Allen 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 Sidney Allen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Johnston, IA 50131
- Reassigned Medicare billing, Iowa enrollment
- 516 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercyone Des Moines Medical Center
Acute Care Hospitals · Des Moines, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 50131 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 10
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 Sidney Allen's NPI number?
The NPI number for Sidney Allen is 1508497124. It was assigned to this individual provider in the NPPES registry on February 1, 2020.
Where is Sidney Allen located?
Sidney Allen practices at 5615 NW 86th St, Johnston, IA 50131. The listed phone number is (515) 643-8350.
What is Sidney Allen's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Sidney Allen enrolled in Medicare?
Yes. Sidney Allen 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 Sidney Allen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sidney Allen reassigns Medicare benefits to Mercy Clinics, Inc (Johnston, 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 Sidney Allen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sidney Allen accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Insurance Company and 3 other insurers list Sidney Allen 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.
Is Sidney Allen affiliated with any hospitals?
According to CMS data, Sidney Allen is affiliated with Mercyone Des Moines Medical Center.
When was this NPI record last updated?
The NPPES record for Sidney Allen was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Sidney Ann Allen · NPI 1508497124
Clinical provider in Johnston, Iowa. Individual provider, active in the CMS NPPES registry since February 1, 2020.
## Identity
- **NPI:** 1508497124 (Entity type: Individual)
- **Enumerated:** February 1, 2020
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 120330 (Iowa)
- **Sole proprietor:** No
## Practice location
- **Address:** 5615 NW 86TH ST, Johnston, IA 50131-1738
- **Phone:** (515) 643-8350 · **Fax:** (515) 643-5824
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Mercy Clinics, Inc (NPI 1194741694, Johnston, IA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** August 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1508497124) · Data from the CMS NPPES public registry.