DR. ARI MICHAEL CEDARS MD
NPI 1376645937
Internal Medicine - Adult Congenital Heart Disease in Baltimore, MD
About Dr. Ari Michael Cedars Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARI MICHAEL CEDARS MD (NPI 1376645937) is an individual adult congenital heart disease provider in Baltimore, Maryland, licensed in Maryland (D88566) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and maintains a secondary practice location in Baltimore.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ari Michael Cedars Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Ari Cedars reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- Also billed through NPI 1083224596 (Maryland)
- 4,483 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, District of Columbia enrollment
- Also billed through NPI 1801891080 (District of Columbia)
- 6 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 10
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 4
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, MDJohns Hopkins Howard County Medical Center
Acute Care Hospitals · Columbia, MDKennedy Krieger Institute
Childrens · Baltimore, MDOther Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
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 Ari Cedars's NPI number?
The NPI number for Ari Cedars is 1376645937. It was assigned to this individual provider in the NPPES registry on September 3, 2006.
Where is Ari Cedars located?
Ari Cedars practices at 301 Mason F Lord Drive Suite 2400, Baltimore, MD 21224. The listed phone number is (410) 550-0845.
What is Ari Cedars's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Adult Congenital Heart Disease, with taxonomy code 207RA0002X.
Is Ari Cedars enrolled in Medicare?
Yes. Ari Cedars is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ari Cedars's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ari Cedars reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Baltimore, MD) and Johns Hopkins University (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 Ari Cedars's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ari Cedars affiliated with any hospitals?
According to CMS data, Ari Cedars is affiliated with Johns Hopkins Hospital, The, Johns Hopkins Bayview Medical Center, Johns Hopkins Howard County Medical Center and Kennedy Krieger Institute.
When was this NPI record last updated?
The NPPES record for Ari Cedars was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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. Ari Michael Cedars, MD · NPI 1376645937
Adult Congenital Heart Disease physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since September 3, 2006.
## Identity
- **NPI:** 1376645937 (Entity type: Individual)
- **Enumerated:** September 3, 2006
- **Primary specialty:** Internal Medicine - Adult Congenital Heart Disease · taxonomy 207RA0002X
- **State license:** D88566 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 301 MASON F LORD DRIVE, SUITE 2400, Baltimore, MD 21224
- **Phone:** (410) 550-0845 · **Fax:** (410) 550-1183
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1275515546, Baltimore, MD); Johns Hopkins University (NPI 1881694263, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical School At Houston, class of 2001
## Record status
- **NPPES last updated:** April 9, 2025
- **Other identifiers:** Medicaid 3536062-02 (TX); Medicaid 3536062-01 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1376645937) · Data from the CMS NPPES public registry.