RONNIE C MARRACHE MD
NPI 1821172396
Hospitalist in Waterville, ME
About Ronnie C Marrache Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RONNIE C MARRACHE MD (NPI 1821172396) is an individual hospitalist provider in Waterville, Maine, licensed in Georgia (040730) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Adventhealth Gordon, and is a graduate of Other (1994).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
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
Ronnie C Marrache 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
10Medicare enrollment records show Ronnie Marrache reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dover Foxcroft, ME 04426
- Reassigned Medicare billing, Maine enrollment
- 146 clinicians in this Medicare group
Ellsworth, ME 04605
- Reassigned Medicare billing, Maine enrollment
- 99 clinicians in this Medicare group
Ellsworth, ME 04605
- Reassigned Medicare billing, Maine enrollment
- 85 clinicians in this Medicare group
Berlin, NH 03570
- Reassigned Medicare billing, New Hampshire enrollment
- Also billed through NPI 1265536718 (New Hampshire)
- 126 clinicians in this Medicare group
Colebrook, NH 03576
- Reassigned Medicare billing, New Hampshire enrollment
- 63 clinicians in this Medicare group
Calhoun, GA 30701
- Reassigned Medicare billing, Georgia enrollment
- 384 clinicians in this Medicare group
Stockbridge, GA 30281
- Reassigned Medicare billing, Georgia enrollment
- 792 clinicians in this Medicare group
Macon, GA 31210
- Reassigned Medicare billing, Georgia enrollment
- 635 clinicians in this Medicare group
St Augustine, FL 32092
- Reassigned Medicare billing, Florida enrollment
- 354 clinicians in this Medicare group
Emmett, ID 83617
- Reassigned Medicare billing, Idaho enrollment
- Also billed through NPI 1063419018 (Idaho)
- 61 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventhealth Gordon
Acute Care Hospitals · Calhoun, GAAdventhealth Murray
Acute Care Hospitals · Chatsworth, GAMaine General Medical Center
Acute Care Hospitals · Augusta, MERedington Fairview General Hospital
Critical Access Hospitals · Skowhegan, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04901 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Ronnie Marrache's NPI number?
The NPI number for Ronnie Marrache is 1821172396. It was assigned to this individual provider in the NPPES registry on October 24, 2006.
Where is Ronnie Marrache located?
Ronnie Marrache practices at 109 Silver St, Waterville, ME 04901. The listed phone number is (207) 872-0866.
What is Ronnie Marrache's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Ronnie Marrache enrolled in Medicare?
Yes. Ronnie Marrache 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 Ronnie Marrache's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronnie Marrache reassigns Medicare benefits to 10 organizations: Mrh Corp. (Dover Foxcroft, ME), Hospital Medicine Services Of Maine LLC (Ellsworth, ME), Maine Medical Services LLC (Ellsworth, ME), Weeks Medical Center (Berlin, NH), Upper Connecticut Valley Hospital Association (Colebrook, NH) and 5 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 Ronnie Marrache's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ronnie Marrache accept?
Health plans from Oscar Health and Taro Health list Ronnie Marrache 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 Ronnie Marrache affiliated with any hospitals?
According to CMS data, Ronnie Marrache is affiliated with Adventhealth Gordon, Adventhealth Murray, Maine General Medical Center and Redington Fairview General Hospital.
When was this NPI record last updated?
The NPPES record for Ronnie Marrache was last updated on May 24, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Ronnie C Marrache, MD · NPI 1821172396
Hospitalist physician in Waterville, Maine. Individual provider, active in the CMS NPPES registry since October 24, 2006.
## Identity
- **NPI:** 1821172396 (Entity type: Individual)
- **Enumerated:** October 24, 2006
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 040730 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 109 SILVER ST, Waterville, ME 04901
- **Phone:** (207) 872-0866 · **Fax:** (207) 872-8098
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): Mrh Corp. (NPI 1558319103, Dover Foxcroft, ME); Hospital Medicine Services Of Maine LLC (NPI 1538638432, Ellsworth, ME); Maine Medical Services LLC (NPI 1053878371, Ellsworth, ME); Weeks Medical Center (NPI 1366900219, Berlin, NH); Upper Connecticut Valley Hospital Association (NPI 1861489437, Colebrook, NH); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1994
## Record status
- **NPPES last updated:** May 24, 2017
- **Other identifiers:** Other 025781 (ME); Medicaid 132900099 (ME); Medicare PIN MX6596 (ME); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1821172396) · Data from the CMS NPPES public registry.