DR. WILLIAM ROBERT CARTER M.D.
NPI 1912905563
Radiology - Diagnostic Radiology in Baltimore, MD
About Dr. William Robert Carter M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM ROBERT CARTER M.D. (NPI 1912905563) is an individual diagnostic radiology provider in Baltimore, Maryland, licensed in Maryland (D0051600) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (1994).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
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
Dr. William Robert Carter 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
6Medicare enrollment records show William Carter reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21201
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 140 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland and District of Columbia enrollments
- Also billed through NPI 1245245307 (District of Columbia)
- 122 clinicians in this Medicare group
Glen Burnie, MD 21061
- Reassigned Medicare billing, Maryland enrollment
- 123 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia enrollment
- 1,417 clinicians in this Medicare group
O Fallon, IL 62269
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: Ssm Cardinal Glennon Children's Hospital
- 414 clinicians in this Medicare group
Kansas City, MO 64108
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: The Childrens Mercy Hospital
- 603 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21201 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.
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Carter's NPI number?
The NPI number for William Carter is 1912905563. It was assigned to this individual provider in the NPPES registry on July 8, 2005.
Where is William Carter located?
William Carter practices at 22 S Greene St, Dept Of Radiology, Baltimore, MD 21201. The listed phone number is (410) 328-3477.
What is William Carter's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is William Carter enrolled in Medicare?
Yes. William Carter 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 Carter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Carter reassigns Medicare benefits to 6 organizations: University Of Maryland Diagnostic Imaging Specialists P A (Baltimore, MD), University Imaging Center, LLC (Baltimore, MD), University Of Maryland Diagnostic Radiology, LLC (Glen Burnie, MD), Children's Hospital (Washington, DC), Ssm Cardinal Glennon Childrens Hospital (O Fallon, IL) and 1 more organization, 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 Carter'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 Carter was last updated on July 12, 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.
# Dr. William Robert Carter, M.D. · NPI 1912905563
Diagnostic Radiology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since July 8, 2005.
## Identity
- **NPI:** 1912905563 (Entity type: Individual)
- **Enumerated:** July 8, 2005
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** D0051600 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 S GREENE ST, DEPT OF RADIOLOGY, Baltimore, MD 21201-1544
- **Phone:** (410) 328-3477
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): University Of Maryland Diagnostic Imaging Specialists P A (NPI 1154335487, Baltimore, MD); University Imaging Center, LLC (NPI 1992511265, Baltimore, MD); University Of Maryland Diagnostic Radiology, LLC (NPI 1548803257, Glen Burnie, MD); Children's Hospital (NPI 1780800128, Washington, DC); Ssm Cardinal Glennon Childrens Hospital (NPI 1174577670, O Fallon, IL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Uniformed Services Uhs Fe Hebert School Of Med, class of 1994
## Record status
- **NPPES last updated:** July 12, 2019
- **Other identifiers:** Medicaid 434211900 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1912905563) · Data from the CMS NPPES public registry.