DR. MIA ELIZABETH GEURTS MD
NPI 1932646064
Emergency Medicine in Napa, CA
About Dr. Mia Elizabeth Geurts Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MIA ELIZABETH GEURTS MD (NPI 1932646064) is an individual emergency medicine provider in Napa, California, licensed in California (A196779) and active in the NPI registry since January 2017. She is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (2017).
NPPES Registry Identity
Specialties & Licenses
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. Mia Elizabeth Geurts 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
2Medicare enrollment records show Mia Geurts reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Napa, CA 94558
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Honolulu, HI 96813
- Reassigned Medicare billing, Hawaii enrollment
- 664 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94558 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.
NAPA, CA 94558
NAPA, CA 94558
NAPA, CA 94558
NAPA, CA 94558
NAPA, CA 94558
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 Mia Geurts's NPI number?
The NPI number for Mia Geurts is 1932646064. It was assigned to this individual provider in the NPPES registry on January 26, 2017.
Where is Mia Geurts located?
Mia Geurts practices at 1000 Trancas St, Napa, CA 94558. The listed phone number is (707) 252-4411.
What is Mia Geurts's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mia Geurts enrolled in Medicare?
Yes. Mia Geurts 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 Mia Geurts's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mia Geurts reassigns Medicare benefits to 2 organizations: Napa Valley Emergency Medical Group (Napa, CA) and Straub Clinic & Hospital (Honolulu, HI). 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 Mia Geurts's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mia Geurts was last updated on July 13, 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. Mia Elizabeth Geurts, MD · NPI 1932646064
Emergency Medicine physician in Napa, California. Individual provider, active in the CMS NPPES registry since January 26, 2017.
## Identity
- **NPI:** 1932646064 (Entity type: Individual)
- **Enumerated:** January 26, 2017
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A196779 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 TRANCAS ST, Napa, CA 94558-2906
- **Phone:** (707) 252-4411
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Napa Valley Emergency Medical Group (NPI 1467463539, Napa, CA); Straub Clinic & Hospital (NPI 1457306508, Honolulu, HI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2017
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1932646064) · Data from the CMS NPPES public registry.