ARI D SILVER ISENSTADT MD
NPI 1003885567
Pediatrics in Baltimore, MD
About Ari D Silver Isenstadt Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARI D SILVER ISENSTADT MD (NPI 1003885567) is an individual pediatrics provider in Baltimore, Maryland, licensed in Maryland (D0057152) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ari D Silver Isenstadt Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ari Silver Isenstadt reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21239
- Reassigned Medicare billing, Maryland enrollment
- 2,602 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21237 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 21237
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 Silver Isenstadt's NPI number?
The NPI number for Ari Silver Isenstadt is 1003885567. It was assigned to this individual provider in the NPPES registry on March 16, 2006.
Where is Ari Silver Isenstadt located?
Ari Silver Isenstadt practices at 9101 Franklin Square Dr Suite 205, Baltimore, MD 21237. The listed phone number is (443) 777-2000.
What is Ari Silver Isenstadt's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Ari Silver Isenstadt enrolled in Medicare?
Yes. Ari Silver Isenstadt is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ari Silver Isenstadt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ari Silver Isenstadt reassigns Medicare benefits to Medstar Medical Group II LLC (Baltimore, MD). The 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 Silver Isenstadt'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 Ari Silver Isenstadt was last updated on February 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Ari D Silver Isenstadt, MD · NPI 1003885567
Pediatrics physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since March 16, 2006.
## Identity
- **NPI:** 1003885567 (Entity type: Individual)
- **Enumerated:** March 16, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** D0057152 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 9101 FRANKLIN SQUARE DR, SUITE 205, Baltimore, MD 21237-3936
- **Phone:** (443) 777-2000
## 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:** Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 29, 2008
- **Other identifiers:** Other 75859901 (MD); Medicare PIN 761LF702 (MD); Medicare UPIN H68860
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Source: [NPI Profile](https://npiprofile.com/npi/1003885567) · Data from the CMS NPPES public registry.