STEPHANIE JOHNSTON MSW
NPI 1194171983
Social Worker in Rockville, MD
About Stephanie Johnston Msw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHANIE JOHNSTON MSW (NPI 1194171983) is an individual social worker in Rockville, Maryland, licensed in Maryland (28737) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS and is a graduate of Other (1993).
NPPES Registry Identity
Specialties & Licenses
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
Stephanie Johnston Msw 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 Stephanie Johnston reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Rockville, MD 20855
- Reassigned Medicare billing, District of Columbia enrollment
- 19 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.
Other Providers at the Same Location NPPES 2
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 Stephanie Johnston's NPI number?
The NPI number for Stephanie Johnston is 1194171983. It was assigned to this individual provider in the NPPES registry on May 11, 2016.
Where is Stephanie Johnston located?
Stephanie Johnston practices at 15841 Crabbs Branch Way, Rockville, MD 20855. The listed phone number is (391) 251-8964.
What is Stephanie Johnston's specialty?
The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.
Is Stephanie Johnston enrolled in Medicare?
Yes. Stephanie Johnston 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 Stephanie Johnston's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Johnston reassigns Medicare benefits to Willow Oak Therapy Center, Inc. (Rockville, MD). 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 Stephanie Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Stephanie Johnston was last updated on July 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Stephanie Johnston, MSW · NPI 1194171983
Social Worker provider in Rockville, Maryland. Individual provider, active in the CMS NPPES registry since May 11, 2016.
## Identity
- **NPI:** 1194171983 (Entity type: Individual)
- **Enumerated:** May 11, 2016
- **Primary specialty:** Social Worker · taxonomy 104100000X
- **State license:** 28737 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 15841 CRABBS BRANCH WAY, Rockville, MD 20855-6625
- **Phone:** (391) 251-8964
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Willow Oak Therapy Center, Inc. (NPI 1386620581, Rockville, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** July 18, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1194171983) · Data from the CMS NPPES public registry.