CHARLES LOCKE M.D.
NPI 1700813177
Internal Medicine in Baltimore, MD
About Charles Locke M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLES LOCKE M.D. (NPI 1700813177) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D52313) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
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 (PECOS)
Charles Locke M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Charles Locke reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 952 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 338 clinicians in this Medicare group
Baltimore, MD 21215
- Reassigned Medicare billing, Maryland enrollment
- 664 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21287 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.
BALTIMORE, MD 21287
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 Charles Locke's NPI number?
The NPI number for Charles Locke is 1700813177. It was assigned to this individual provider in the NPPES registry on June 28, 2006.
Where is Charles Locke located?
Charles Locke practices at 600 N Wolfe St, Baltimore, MD 21287. The listed phone number is (410) 955-9434.
What is Charles Locke's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Charles Locke enrolled in Medicare?
Yes. Charles Locke is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Charles Locke's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Locke reassigns Medicare benefits to 4 organizations: Johns Hopkins University (Baltimore, MD), Johns Hopkins Community Physicians (Baltimore, MD), Johns Hopkins University (Baltimore, MD) and Sinai Hospital Of Baltimore Inc (Baltimore, 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 Charles Locke'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 Charles Locke was last updated on May 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Charles Locke, M.D. · NPI 1700813177
Internal Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 28, 2006.
## Identity
- **NPI:** 1700813177 (Entity type: Individual)
- **Enumerated:** June 28, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** D52313 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 N WOLFE ST, Baltimore, MD 21287-0005
- **Phone:** (410) 955-9434
## 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): Johns Hopkins University (NPI 1023018413, Baltimore, MD); Johns Hopkins Community Physicians (NPI 1124629837, Baltimore, MD); Johns Hopkins University (NPI 1902332133, Baltimore, MD); Sinai Hospital Of Baltimore Inc (NPI 1437174059, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 9, 2013
- **Other identifiers:** Medicare UPIN G26103 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1700813177) · Data from the CMS NPPES public registry.