LARISA DYER DO
NPI 1306209929
Emergency Medicine in Saint Joseph, MI
About Larisa Dyer Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LARISA DYER DO (NPI 1306209929) is an individual emergency medicine provider in Saint Joseph, Michigan, licensed in Michigan (5101024654) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, is affiliated with Lakeland Hospital, St Joseph, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
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
Larisa Dyer Do 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 Larisa Dyer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Joseph, MI 49085
- Reassigned Medicare billing, Michigan enrollment
- 42 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 5
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.
Lakeland Hospital, St Joseph
Acute Care Hospitals · St Joseph, MICorewell Health Watervliet Hospital
Acute Care Hospitals · Watervliet, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49085 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT JOSEPH, MI 49085
SAINT JOSEPH, MI 49085
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 Larisa Dyer's NPI number?
The NPI number for Larisa Dyer is 1306209929. It was assigned to this individual provider in the NPPES registry on March 31, 2016. The provider is also known as Larisa Grinvalds Do.
Where is Larisa Dyer located?
Larisa Dyer practices at 1234 Napier Ave Lakeland Health - Gme, Saint Joseph, MI 49085. The listed phone number is (269) 982-4941.
What is Larisa Dyer's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Larisa Dyer enrolled in Medicare?
Yes. Larisa Dyer 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 Larisa Dyer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Larisa Dyer reassigns Medicare benefits to Epmg Southwest Michigan PLLC (Saint Joseph, MI). 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 Larisa Dyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Larisa Dyer affiliated with any hospitals?
According to CMS data, Larisa Dyer is affiliated with Lakeland Hospital, St Joseph and Corewell Health Watervliet Hospital.
When was this NPI record last updated?
The NPPES record for Larisa Dyer was last updated on February 7, 2024. 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.
# Larisa Dyer, DO · NPI 1306209929
Emergency Medicine physician in Saint Joseph, Michigan. Individual provider, active in the CMS NPPES registry since March 31, 2016.
## Identity
- **NPI:** 1306209929 (Entity type: Individual)
- **Enumerated:** March 31, 2016
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 5101024654 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1234 NAPIER AVE, LAKELAND HEALTH - GME, Saint Joseph, MI 49085-2112
- **Phone:** (269) 982-4941
## 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:** Epmg Southwest Michigan PLLC (NPI 1316405103, Saint Joseph, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** February 7, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1306209929) · Data from the CMS NPPES public registry.