WILLIAM THOMPSON M.D.
NPI 1326073131
Pediatrics - Pediatric Cardiology in Baltimore, MD
About William Thompson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM THOMPSON M.D. (NPI 1326073131) is an individual pediatric cardiology provider in Baltimore, Maryland, licensed in Maryland (D33463) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and maintains a secondary practice location in Bethesda.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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 (PECOS)
William Thompson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show William Thompson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21202
- Reassigned Medicare billing, Maryland enrollment
- 352 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, District of Columbia enrollment
- 6 clinicians in this Medicare group
Pasadena, MD 21122
- Reassigned Medicare billing, Maryland enrollment
- 794 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDMedicare 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 21287
BALTIMORE, MD 21287
BALTIMORE, MD 21287
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 Thompson's NPI number?
The NPI number for William Thompson is 1326073131. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is William Thompson located?
William Thompson practices at 601 N Caroline St, Baltimore, MD 21287. The listed phone number is (410) 955-5910.
What is William Thompson's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is William Thompson enrolled in Medicare?
Yes. William Thompson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for William Thompson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Thompson reassigns Medicare benefits to 4 organizations: Kennedy Krieger Associates (Baltimore, MD), Johns Hopkins University (Baltimore, MD), Johns Hopkins University (Baltimore, MD) and Luminis Health Medical Group, LLC (Pasadena, MD). 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 Thompson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Thompson affiliated with any hospitals?
According to CMS data, William Thompson is affiliated with Johns Hopkins Hospital, The.
When was this NPI record last updated?
The NPPES record for William Thompson was last updated on January 17, 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.
# William Thompson, M.D. · NPI 1326073131
Pediatric Cardiology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since July 11, 2006.
## Identity
- **NPI:** 1326073131 (Entity type: Individual)
- **Enumerated:** July 11, 2006
- **Primary specialty:** Pediatrics - Pediatric Cardiology · taxonomy 2080P0202X
- **State license:** D33463 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 601 N CAROLINE ST, Baltimore, MD 21287-0006
- **Phone:** (410) 955-5910
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Kennedy Krieger Associates (NPI 1730998733, Baltimore, MD); Johns Hopkins University (NPI 1295731966, Baltimore, MD); Johns Hopkins University (NPI 1881694263, Baltimore, MD); Luminis Health Medical Group, LLC (NPI 1063837490, Pasadena, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wake Forest University School Of Medicine, class of 1984
## Record status
- **NPPES last updated:** January 17, 2023
- **Other identifiers:** Medicaid 190421300 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1326073131) · Data from the CMS NPPES public registry.