MARIA E THOMAS
NPI 1902788979
Nurse Practitioner - Psychiatric/Mental Health in Chicago, IL
About Maria E Thomas NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIA E THOMAS (NPI 1902788979) is an individual psychiatric/mental health provider in Chicago, Illinois, licensed in Illinois (209030536) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and is a graduate of Other (2023).
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
Maria E Thomas 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 Maria Thomas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60647
- Reassigned Medicare billing, Illinois enrollment
- 646 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.
Holy Cross Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60647 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 12
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 Maria Thomas's NPI number?
The NPI number for Maria Thomas is 1902788979. It was assigned to this individual provider in the NPPES registry on July 22, 2025.
Where is Maria Thomas located?
Maria Thomas practices at 3109 W Armitage Ave, Chicago, IL 60647. The listed phone number is (773) 384-4933.
What is Maria Thomas's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Maria Thomas enrolled in Medicare?
Yes. Maria Thomas 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 Maria Thomas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Thomas reassigns Medicare benefits to Mount Sinai Community Foundation (Chicago, IL). 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 Maria Thomas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maria Thomas accept?
Health plans from Oscar Health list Maria Thomas 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 Maria Thomas affiliated with any hospitals?
According to CMS data, Maria Thomas is affiliated with Holy Cross Hospital.
When was this NPI record last updated?
The NPPES record for Maria Thomas was last updated on July 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Maria E Thomas · NPI 1902788979
Psychiatric/Mental Health physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since July 22, 2025.
## Identity
- **NPI:** 1902788979 (Entity type: Individual)
- **Enumerated:** July 22, 2025
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 209030536 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 3109 W ARMITAGE AVE, Chicago, IL 60647-3818
- **Phone:** (773) 384-4933
## 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:** Mount Sinai Community Foundation (NPI 1144383084, Chicago, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** July 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1902788979) · Data from the CMS NPPES public registry.