DR. MATTHEW A NASH MD
NPI 1740257930
Obstetrics & Gynecology in South Bend, IN
About Dr. Matthew A Nash Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW A NASH MD (NPI 1740257930) is an individual obstetrics & gynecology provider in South Bend, Indiana, licensed in Illinois (336054761) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Lutheran General Hospital, and maintains a secondary practice location in South Bend.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Dr. Matthew A Nash 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 Reassignments
8Medicare enrollment records show Matthew Nash reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
South Bend, IN 46601
- Reassigned Medicare billing, Indiana enrollment
- 734 clinicians in this Medicare group
South Bend, IN 46601
- Reassigned Medicare billing, Indiana enrollment
- 183 clinicians in this Medicare group
South Bend, IN 46601
- Reassigned Medicare billing, Indiana enrollment
- Medicare enrollment name: Pediatrix Medical Group Of Indiana, P.C.
- 13 clinicians in this Medicare group
St John, IN 46373
- Reassigned Medicare billing, Indiana enrollment
- 607 clinicians in this Medicare group
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Bannockburn, IL 60015
- Reassigned Medicare billing, Illinois enrollment
- 120 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 clinicians in this Medicare group
Evansville, IN 47750
- Reassigned Medicare billing, Indiana enrollment
- 81 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 2
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Lutheran General Hospital
Acute Care Hospitals · Park Ridge, ILMemorial Hospital Of South Bend
Acute Care Hospitals · South Bend, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46601 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 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SOUTH BEND, IN 46601
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 Matthew Nash's NPI number?
The NPI number for Matthew Nash is 1740257930. It was assigned to this individual provider in the NPPES registry on March 7, 2006.
Where is Matthew Nash located?
Matthew Nash practices at 100 Navarre Pl Ste 4470, South Bend, IN 46601. The listed phone number is (574) 647-1405.
What is Matthew Nash's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Matthew Nash enrolled in Medicare?
Yes. Matthew Nash 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 organizations bill Medicare for Matthew Nash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Nash reassigns Medicare benefits to 8 organizations: Beacon Medical Group, Inc. (South Bend, IN), Healthlinc, Inc (South Bend, IN), Pediatrix Medical Group Of Indiana, PC (South Bend, IN), Community Care Network Inc (St John, IN), Advocate Health And Hospitals Corp. (Chicago, IL) and 3 more organizations, listed in the Medicare section above. Each 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 Matthew Nash's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Nash accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 1 other insurer list Matthew Nash 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 Matthew Nash affiliated with any hospitals?
According to CMS data, Matthew Nash is affiliated with Advocate Lutheran General Hospital and Memorial Hospital Of South Bend.
When was this NPI record last updated?
The NPPES record for Matthew Nash was last updated on July 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Matthew A Nash, MD · NPI 1740257930
Obstetrics & Gynecology physician in South Bend, Indiana. Individual provider, active in the CMS NPPES registry since March 7, 2006.
## Identity
- **NPI:** 1740257930 (Entity type: Individual)
- **Enumerated:** March 7, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 336054761 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 NAVARRE PL STE 4470, South Bend, IN 46601-1168
- **Phone:** (574) 647-1405 · **Fax:** (574) 647-3970
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Beacon Medical Group, Inc. (NPI 1548415474, South Bend, IN); Healthlinc, Inc (NPI 1972071769, South Bend, IN); Pediatrix Medical Group Of Indiana, PC (NPI 1437256146, South Bend, IN); Community Care Network Inc (NPI 1457610487, St John, IN); Advocate Health And Hospitals Corp. (NPI 1487951711, Chicago, IL); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 1994
## Record status
- **NPPES last updated:** July 8, 2026
- **Other identifiers:** Medicaid 300057709 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1740257930) · Data from the CMS NPPES public registry.