JONATHAN ZENILMAN M.D.
NPI 1730119264
Internal Medicine - Infectious Disease in Baltimore, MD
About Jonathan Zenilman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JONATHAN ZENILMAN M.D. (NPI 1730119264) is an individual infectious disease provider in Baltimore, Maryland, licensed in Maryland (D39358) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Bayview Medical Center, and is a graduate of Other (1981).
NPPES Registry Identity
Specialties & Licenses 2
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)
Jonathan Zenilman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jonathan Zenilman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- Also billed through NPI 1942812144 (Maryland)
- 4,483 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Jonathan Zenilman's NPI number?
The NPI number for Jonathan Zenilman is 1730119264. It was assigned to this individual provider in the NPPES registry on July 3, 2006.
Where is Jonathan Zenilman located?
Jonathan Zenilman practices at 5200 Eastern Ave Rm 381, Baltimore, MD 21224. The listed phone number is (410) 550-9080.
What is Jonathan Zenilman's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Jonathan Zenilman enrolled in Medicare?
Yes. Jonathan Zenilman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jonathan Zenilman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Zenilman reassigns Medicare benefits to Johns Hopkins University (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 Jonathan Zenilman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jonathan Zenilman affiliated with any hospitals?
According to CMS data, Jonathan Zenilman is affiliated with Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Jonathan Zenilman was last updated on August 14, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Jonathan Zenilman, M.D. · NPI 1730119264
Infectious Disease physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1730119264 (Entity type: Individual)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** D39358 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 5200 EASTERN AVE RM 381, Baltimore, MD 21224-2734
- **Phone:** (410) 550-9080 · **Fax:** (410) 550-1169
## 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:** Johns Hopkins University (NPI 1306810619, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1981
## Record status
- **NPPES last updated:** August 14, 2019
- **Other identifiers:** Medicaid 058711700 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1730119264) · Data from the CMS NPPES public registry.