Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. MATTHEW A NASH MD
NPI 1740257930
Obstetrics & Gynecology in South Bend, IN

Active since March 07, 2006PECOS EnrolledAccepts Medicare Assignment
100 NAVARRE PL STE 4470, SOUTH BEND, IN 46601(574) 647-1405(574) 647-3970 Get Directions Write a Review

NPPES record last updated: July 8, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 8, 2026, Mar 3, 2023, Dec 12, 2022 and 4 more (7 updates tracked since 2017).

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

NPI1740257930
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. MATTHEW A NASHCredential: MD
Location Address100 NAVARRE PL STE 4470South Bend, IN 46601-1168
Mailing Address3245 Health Dr Ste 100Granger, IN 46530-1380
Fax(574) 647-3970
Sole ProprietorNo
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 1994
Enumeration DateMarch 7, 2006
Last NPPES UpdateJuly 8, 20267 updates tracked since enumeration
NPPES CertifiedJuly 8, 2026
NPI 1740257930 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses Licensed in IL · 336054761 Licensed in IN · 01086723A
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
100 NAVARRE PL STE 4470, South Bend, IN 46601

Secondary Practice Location 1

Location 1714 N Michigan StSouth Bend, IN 46601-1035 · Phone (574) 647-7477 · Fax (574) 647-3655

Other Identifiers 1

Medicaid300057709IN

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID143260588
PECOS Enrollment IDI20050505000336, I20211115002493
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
21 services19 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
18 services15 patients

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, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140223
Location1775 Dempster StPark Ridge, IL 60068 · Cook County
Emergency services Birthing friendly

Memorial Hospital Of South Bend

Acute Care Hospitals · South Bend, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150058
Location615 N Michigan StSouth Bend, IN 46601 · St. Joseph County
Emergency services Birthing friendly

Physician 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.

New Patient
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$66.48 typical visit price
range $16.93 – $132.22
Typical copayment $16.62 (range $4.23 – $33.05)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Advanced Practice Midwife
100 NAVARRE PL STE 4470
SOUTH BEND, IN 46601
Advanced Practice Midwife
100 NAVARRE PL STE 4470
SOUTH BEND, IN 46601
Nurse Practitioner (Women's Health)
100 NAVARRE PL STE 4470
SOUTH BEND, IN 46601
Advanced Practice Midwife
100 NAVARRE PL STE 4470
SOUTH BEND, IN 46601
Obstetrics & Gynecology
100 NAVARRE PL STE 4470
SOUTH BEND, IN 46601
Obstetrics & Gynecology
100 NAVARRE PL STE 4470
SOUTH BEND, IN 46601
Advanced Practice Midwife
100 NAVARRE PL STE 4470
SOUTH BEND, IN 46601
Obstetrics & Gynecology
100 NAVARRE PL STE 4470
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.

What insurance does Matthew Nash accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource 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 with the weekly NPPES data releases published by CMS.