WILLIAM P RHOADS M.D.
NPI 1508824996
Anesthesiology in Boston, MA
About William P Rhoads M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM P RHOADS M.D. (NPI 1508824996) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (224075) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1997).
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
William P Rhoads M.d. 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
4Medicare enrollment records show William Rhoads reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oakland, CA 94609
- Reassigned Medicare billing, California enrollment
- 19 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 723 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.
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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Rhoads's NPI number?
The NPI number for William Rhoads is 1508824996. It was assigned to this individual provider in the NPPES registry on May 3, 2006.
Where is William Rhoads located?
William Rhoads practices at 300 Longwood Avenue Children's Hospital, Boston, MA 02115. The listed phone number is (617) 355-7737.
What is William Rhoads's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is William Rhoads enrolled in Medicare?
Yes. William Rhoads 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 Rhoads's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Rhoads reassigns Medicare benefits to 4 organizations: Childrens Anesthesia Medical Group Inc (Oakland, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and University Anesthesia Medical Group (San Francisco, CA). 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 Rhoads'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 William Rhoads was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 P Rhoads, M.D. · NPI 1508824996
Anesthesiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 3, 2006.
## Identity
- **NPI:** 1508824996 (Entity type: Individual)
- **Enumerated:** May 3, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 224075 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVENUE, CHILDREN'S HOSPITAL, Boston, MA 02115
- **Phone:** (617) 355-7737
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Childrens Anesthesia Medical Group Inc (NPI 1265496756, Oakland, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Anesthesia Medical Group (NPI 1528137296, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 1997
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1508824996) · Data from the CMS NPPES public registry.