DR. JOHN THOMAS CARROLL D.O.
NPI 1457573578
General Practice in Cockeysville, MD
About Dr. John Thomas Carroll D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN THOMAS CARROLL D.O. (NPI 1457573578) is an individual general practice provider in Cockeysville, Maryland, licensed in Maryland (H47469) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1993).
NPPES Registry Identity
Specialties & Licenses
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. John Thomas Carroll D.o. 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 John Carroll reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westminster, MD 21157
- Reassigned Medicare billing, Maryland enrollment
- 48 clinicians in this Medicare group
Havre De Grace, MD 21078
- Reassigned Medicare billing, Maryland enrollment
- 6 clinicians in this Medicare group
Bowie, MD 20715
- Reassigned Medicare billing, District of Columbia enrollment
- 132 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.
Other Providers at the Same Location NPPES
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 John Carroll's NPI number?
The NPI number for John Carroll is 1457573578. It was assigned to this individual provider in the NPPES registry on May 2, 2007.
Where is John Carroll located?
John Carroll practices at 9832 York Rd Suite F, Cockeysville, MD 21030. The listed phone number is (410) 628-1861.
What is John Carroll's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is John Carroll enrolled in Medicare?
Yes. John Carroll 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 John Carroll's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Carroll reassigns Medicare benefits to 3 organizations: U N I Medical Care Inc (Westminster, MD), Silverstein Medical LLC (Havre De Grace, MD) and Mnr Industries, LLC (Bowie, 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 John Carroll'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 John Carroll 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.
# Dr. John Thomas Carroll, D.O. · NPI 1457573578
General Practice physician in Cockeysville, Maryland. Individual provider, active in the CMS NPPES registry since May 2, 2007.
## Identity
- **NPI:** 1457573578 (Entity type: Individual)
- **Enumerated:** May 2, 2007
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** H47469 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 9832 YORK RD, SUITE F, Cockeysville, MD 21030-4936
- **Phone:** (410) 628-1861 · **Fax:** (410) 628-1862
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): U N I Medical Care Inc (NPI 1790962371, Westminster, MD); Silverstein Medical LLC (NPI 1457820573, Havre De Grace, MD); Mnr Industries, LLC (NPI 1093130924, Bowie, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN G88556 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1457573578) · Data from the CMS NPPES public registry.