GARRETT MONK ALDERFER MD
NPI 1932424603
Internal Medicine in Bolivar, MO
About Garrett Monk Alderfer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GARRETT MONK ALDERFER MD (NPI 1932424603) is an individual internal medicine provider in Bolivar, Missouri, licensed in Missouri (2014008528) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Springfield, and is a graduate of University Of Arkansas College Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses 2
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
Garrett Monk Alderfer 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 Garrett Alderfer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bolivar, MO 65613
- Reassigned Medicare billing, Missouri enrollment
- 249 clinicians in this Medicare group
Bolivar, MO 65613
- Reassigned Medicare billing, Missouri enrollment
- 128 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 6
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.
Mercy Hospital Springfield
Acute Care Hospitals · Springfield, MOCitizens Memorial Hospital
Acute Care Hospitals · Bolivar, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 65613 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.
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 Garrett Alderfer's NPI number?
The NPI number for Garrett Alderfer is 1932424603. It was assigned to this individual provider in the NPPES registry on April 6, 2010.
Where is Garrett Alderfer located?
Garrett Alderfer practices at 1500 N Oakland Ave, Bolivar, MO 65613. The listed phone number is (417) 328-6000.
What is Garrett Alderfer's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Garrett Alderfer enrolled in Medicare?
Yes. Garrett Alderfer 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 Garrett Alderfer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Garrett Alderfer reassigns Medicare benefits to 2 organizations: Citizens Memorial Healthcare (Bolivar, MO) and Citizens Memorial Hospital District (Bolivar, MO). 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 Garrett Alderfer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Garrett Alderfer accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter of Oklahoma and Ambetter of Tennessee and 2 other insurers list Garrett Alderfer 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 Garrett Alderfer affiliated with any hospitals?
According to CMS data, Garrett Alderfer is affiliated with Mercy Hospital Springfield and Citizens Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Garrett Alderfer was last updated on April 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.