MR. WILLIAM DANIEL SING AGACNP-BC, FNP-BC
NPI 1598445801
Nurse Practitioner in Memphis, TN
About Mr. William Daniel Sing Agacnp-bc, Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. WILLIAM DANIEL SING AGACNP-BC, FNP-BC (NPI 1598445801) is an individual nurse practitioner in Memphis, Tennessee, licensed in Tennessee (34300) and active in the NPI registry since July 2023. He is enrolled in Medicare PECOS, is affiliated with Methodist Healthcare - Olive Branch Hospital, and is a graduate of Other (2023).
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
Mr. William Daniel Sing Agacnp-bc, Fnp-bc 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
8Medicare enrollment records show William Sing reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Memphis, TN 38116
- Reassigned Medicare billing, Tennessee enrollment
- 252 clinicians in this Medicare group
Memphis, TN 38104
- Reassigned Medicare billing, Tennessee enrollment
- 253 clinicians in this Medicare group
Germantown, TN 38138
- Reassigned Medicare billing, Tennessee enrollment
- 251 clinicians in this Medicare group
Olive Branch, MS 38654
- Reassigned Medicare billing, Mississippi enrollment
- 96 clinicians in this Medicare group
Memphis, TN 38128
- Reassigned Medicare billing, Tennessee enrollment
- 250 clinicians in this Medicare group
Dyersburg, TN 38024
- Reassigned Medicare billing, Tennessee enrollment
- 256 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Tennessee enrollment
- 208 clinicians in this Medicare group
Maysville, KY 41056
- Reassigned Medicare billing, Mississippi enrollment
- 171 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 3
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.
Methodist Healthcare - Olive Branch Hospital
Acute Care Hospitals · Olive Branch, MSMethodist Hospitals Of Memphis
Acute Care Hospitals · Memphis, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 38116 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 William Sing's NPI number?
The NPI number for William Sing is 1598445801. It was assigned to this individual provider in the NPPES registry on July 20, 2023.
Where is William Sing located?
William Sing practices at 1300 Wesley Dr, Memphis, TN 38116. The listed phone number is (901) 516-3700.
What is William Sing's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is William Sing enrolled in Medicare?
Yes. William Sing 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 Sing's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Sing reassigns Medicare benefits to 8 organizations: Methodist South Emergency Physicians, PLLC (Memphis, TN), Methodist University Emergency Physicians PLLC (Memphis, TN), Germantown Emergency Physicians, PLLC (Germantown, TN), Olive Branch Emergency Physicians LLC (Olive Branch, MS), Methodist North Emergency Physicians, PLLC (Memphis, TN) and 3 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 William Sing's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Sing affiliated with any hospitals?
According to CMS data, William Sing is affiliated with Methodist Healthcare - Olive Branch Hospital and Methodist Hospitals Of Memphis.
When was this NPI record last updated?
The NPPES record for William Sing was last updated on July 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mr. William Daniel Sing, AGACNP-BC, FNP-BC · NPI 1598445801
Nurse Practitioner physician in Memphis, Tennessee. Individual provider, active in the CMS NPPES registry since July 20, 2023.
## Identity
- **NPI:** 1598445801 (Entity type: Individual)
- **Enumerated:** July 20, 2023
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 34300 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 1300 WESLEY DR, Memphis, TN 38116-6426
- **Phone:** (901) 516-3700
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Methodist South Emergency Physicians, PLLC (NPI 1609657873, Memphis, TN); Methodist University Emergency Physicians PLLC (NPI 1023899291, Memphis, TN); Germantown Emergency Physicians, PLLC (NPI 1518747526, Germantown, TN); Olive Branch Emergency Physicians LLC (NPI 1730969734, Olive Branch, MS); Methodist North Emergency Physicians, PLLC (NPI 1801677083, Memphis, TN); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** July 22, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1598445801) · Data from the CMS NPPES public registry.