WILLIAM DARNELL
NPI 1477030773
Nurse Anesthetist, Certified Registered in Macon, GA
About William Darnell NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM DARNELL (NPI 1477030773) is an individual nurse anesthetist, certified registered in Macon, Georgia, licensed in Georgia (RN217212) and active in the NPI registry since July 2018. He is affiliated with Wellstar Spalding Medical Center and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
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
William Darnell 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
3Medicare enrollment records show William Darnell reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Macon, GA 31201
- Reassigned Medicare billing, Georgia enrollment
- 49 clinicians in this Medicare group
Stone Mountain, GA 30087
- Reassigned Medicare billing, Georgia enrollment
- 650 clinicians in this Medicare group
Newnan, GA 30265
- Reassigned Medicare billing, Georgia enrollment
- 729 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Wellstar Spalding Medical Center
Acute Care Hospitals · Griffin, GAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 31201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
MACON, GA 31201
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 William Darnell's NPI number?
The NPI number for William Darnell is 1477030773. It was assigned to this individual provider in the NPPES registry on July 19, 2018.
Where is William Darnell located?
William Darnell practices at 777 Hemlock St, Macon, GA 31201. The listed phone number is (478) 633-1000.
What is William Darnell's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is William Darnell enrolled in Medicare?
Yes. William Darnell 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 William Darnell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Darnell reassigns Medicare benefits to 3 organizations: Guardian Medical Services, LLC (Macon, GA), American Anesthesiology Associates Of Georgia, LLC (Stone Mountain, GA) and Sentry Anesthesia Management, LLC (Newnan, GA). 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 William Darnell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Darnell accept?
Health plans from Oscar Health list William Darnell 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 William Darnell affiliated with any hospitals?
According to CMS data, William Darnell is affiliated with Wellstar Spalding Medical Center.
When was this NPI record last updated?
The NPPES record for William Darnell was last updated on January 30, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# William Darnell · NPI 1477030773
Nurse Anesthetist, Certified Registered physician in Macon, Georgia. Individual provider, active in the CMS NPPES registry since July 19, 2018.
## Identity
- **NPI:** 1477030773 (Entity type: Individual)
- **Enumerated:** July 19, 2018
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** RN217212 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 777 HEMLOCK ST, Macon, GA 31201-2102
- **Phone:** (478) 633-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Guardian Medical Services, LLC (NPI 1255786521, Macon, GA); American Anesthesiology Associates Of Georgia, LLC (NPI 1528068673, Stone Mountain, GA); Sentry Anesthesia Management, LLC (NPI 1134544794, Newnan, GA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** January 30, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1477030773) · Data from the CMS NPPES public registry.