DR. LARISSA M. CHISM BUGGS MD
NPI 1952460933
Psychiatry & Neurology - Psychiatry in South Bend, IN
About Dr. Larissa M. Chism Buggs Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LARISSA M. CHISM BUGGS MD (NPI 1952460933) is an individual psychiatry provider in South Bend, Indiana, licensed in Montana (MED-PHYS-LIC-118499) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS, is affiliated with Houston Methodist Baytown Hospital, and maintains 6 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 6
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. Larissa M. Chism Buggs 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
11Medicare enrollment records show Larissa Chism Buggs reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mishawaka, IN 46544
- Reassigned Medicare billing, Indiana enrollment
- 1,396 clinicians in this Medicare group
Chicago, IL 60638
- Reassigned Medicare billing, Illinois enrollment
- 381 clinicians in this Medicare group
Ionia, MI 48846
- Reassigned Medicare billing, Michigan enrollment
- 916 clinicians in this Medicare group
Peoria, IL 61615
- Reassigned Medicare billing, Indiana enrollment
- 4 clinicians in this Medicare group
Winona, MN 55987
- Reassigned Medicare billing, Minnesota enrollment
- 330 clinicians in this Medicare group
Bismarck, ND 58504
- Reassigned Medicare billing, Indiana and North Dakota enrollments
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,407 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 1,579 clinicians in this Medicare group
Miles City, MT 59301
- Reassigned Medicare billing, Montana and Indiana enrollments
- Also billed through NPI 1376598714 (Indiana)
- 1,264 clinicians in this Medicare group
Bozeman, MT 59715
- Reassigned Medicare billing, Montana enrollment
- 402 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
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Houston Methodist Baytown Hospital
Acute Care Hospitals · Baytown, TXHouston Methodist Sugarland Hospital
Acute Care Hospitals · Sugar Land, TXHouston Methodist Willowbrook Hospital
Acute Care Hospitals · Houston, TXHouston Methodist West Hospital
Acute Care Hospitals · Houston, TXHouston Methodist The Woodlands Hospital
Acute Care Hospitals · The Woodlands, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46614 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Larissa Chism Buggs's NPI number?
The NPI number for Larissa Chism Buggs is 1952460933. It was assigned to this individual provider in the NPPES registry on December 6, 2006. The provider is also known as Larissa Chism MD.
Where is Larissa Chism Buggs located?
Larissa Chism Buggs practices at 3607 S Main St Ste 1, South Bend, IN 46614. The listed phone number is (574) 345-5497.
What is Larissa Chism Buggs's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Larissa Chism Buggs enrolled in Medicare?
Yes. Larissa Chism Buggs 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 Larissa Chism Buggs's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Larissa Chism Buggs reassigns Medicare benefits to 11 organizations: Franciscan Physician Network (Mishawaka, IN), Adventist Health Partners, Inc (Chicago, IL), Edward W Sparrow Hospital Association (Ionia, MI), Osf Multi-Specialty Group (Peoria, IL), Winona Health Services (Winona, MN) and 6 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 Larissa Chism Buggs's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Larissa Chism Buggs accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Blue Cross Blue Shield of North Dakota and Blue Cross and Blue Shield of Montana and 7 other insurers list Larissa Chism Buggs 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 Larissa Chism Buggs affiliated with any hospitals?
According to CMS data, Larissa Chism Buggs is affiliated with Houston Methodist Baytown Hospital, Houston Methodist Sugarland Hospital, Houston Methodist Willowbrook Hospital, Houston Methodist West Hospital and Houston Methodist The Woodlands Hospital.
When was this NPI record last updated?
The NPPES record for Larissa Chism Buggs was last updated on November 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. Larissa M. Chism Buggs, MD · NPI 1952460933
Psychiatry physician in South Bend, Indiana. Individual provider, active in the CMS NPPES registry since December 6, 2006.
## Identity
- **NPI:** 1952460933 (Entity type: Individual)
- **Enumerated:** December 6, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** MED-PHYS-LIC-118499 (Montana)
- **Sole proprietor:** No
## Practice location
- **Address:** 3607 S MAIN ST STE 1, South Bend, IN 46614-1723
- **Phone:** (574) 345-5497 · **Fax:** (877) 450-0123
## 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:** 11 organizations under Medicare reassignment (form CMS-855R): Franciscan Physician Network (NPI 1366879009, Mishawaka, IN); Adventist Health Partners, Inc (NPI 1346592664, Chicago, IL); Edward W Sparrow Hospital Association (NPI 1891486205, Ionia, MI); Osf Multi-Specialty Group (NPI 1922445527, Peoria, IL); Winona Health Services (NPI 1295789352, Winona, MN); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** November 17, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1952460933) · Data from the CMS NPPES public registry.