ANTHONY KALLOO M.D.
NPI 1881638153
Internal Medicine - Gastroenterology in Baltimore, MD
About Anthony Kalloo M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANTHONY KALLOO M.D. (NPI 1881638153) is an individual gastroenterology provider in Baltimore, Maryland, licensed in Maryland (D36961) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Other (1979).
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)
Anthony Kalloo M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Anthony Kalloo reassigns Medicare billing to 3 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
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 1,177 clinicians in this Medicare group
Brooklyn, NY 11219
- Reassigned Medicare billing, New York enrollment
- 27 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 2
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDJohns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDPhysician 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 Anthony Kalloo's NPI number?
The NPI number for Anthony Kalloo is 1881638153. It was assigned to this individual provider in the NPPES registry on June 16, 2006.
Where is Anthony Kalloo located?
Anthony Kalloo practices at 600 N Wolfe St, Baltimore, MD 21287. The listed phone number is (410) 955-4166.
What is Anthony Kalloo's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Anthony Kalloo enrolled in Medicare?
Yes. Anthony Kalloo is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Anthony Kalloo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anthony Kalloo reassigns Medicare benefits to 3 organizations: Johns Hopkins University (Baltimore, MD), Maimonides Faculty Practice Plan (Brooklyn, NY) and Maimonides Medical Center - Mmc Gastroenterology Fpp (Brooklyn, NY). 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 Anthony Kalloo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Anthony Kalloo affiliated with any hospitals?
According to CMS data, Anthony Kalloo is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Anthony Kalloo was last updated on July 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Anthony Kalloo, M.D. · NPI 1881638153
Gastroenterology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 16, 2006.
## Identity
- **NPI:** 1881638153 (Entity type: Individual)
- **Enumerated:** June 16, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** D36961 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 N WOLFE ST, Baltimore, MD 21287-0005
- **Phone:** (410) 955-4166
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1881694453, Baltimore, MD); Maimonides Faculty Practice Plan (NPI 1053344846, Brooklyn, NY); Maimonides Medical Center - Mmc Gastroenterology Fpp (NPI 1932216660, Brooklyn, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1979
## Record status
- **NPPES last updated:** July 25, 2024
- **Other identifiers:** Medicaid 211781900 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1881638153) · Data from the CMS NPPES public registry.