MR. DOUGLAS CHRISTOPHER STEWART MS
NPI 1154731123
Counselor - Mental Health in Pittsburgh, PA
About Mr. Douglas Christopher Stewart Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. DOUGLAS CHRISTOPHER STEWART MS (NPI 1154731123) is an individual mental health provider in Pittsburgh, Pennsylvania and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of Other (2011).
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 (PECOS)
Mr. Douglas Christopher Stewart Ms is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Douglas Stewart reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Philadelphia, PA 19103
- Reassigned Medicare billing, Pennsylvania 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.
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 Douglas Stewart's NPI number?
The NPI number for Douglas Stewart is 1154731123. It was assigned to this individual provider in the NPPES registry on April 30, 2014.
Where is Douglas Stewart located?
Douglas Stewart practices at 401 Shady Ave Ste B205-1, Pittsburgh, PA 15206. The listed phone number is (412) 512-3756.
What is Douglas Stewart's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Douglas Stewart enrolled in Medicare?
Yes. Douglas Stewart is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Douglas Stewart's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Stewart reassigns Medicare benefits to Quartet Medical Group (Philadelphia, PA). 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 Douglas Stewart'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 Douglas Stewart was last updated on October 30, 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.
# Mr. Douglas Christopher Stewart, MS · NPI 1154731123
Mental Health provider in Pittsburgh, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 30, 2014.
## Identity
- **NPI:** 1154731123 (Entity type: Individual)
- **Enumerated:** April 30, 2014
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **Sole proprietor:** No
## Practice location
- **Address:** 401 SHADY AVE STE B205-1, Pittsburgh, PA 15206-4409
- **Phone:** (412) 512-3756
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Quartet Medical Group (NPI 1497438428, Philadelphia, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** October 30, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1154731123) · Data from the CMS NPPES public registry.