JACEK LECH MOSTWIN M.D.
NPI 1487607149
Urology in Baltimore, MD
About Jacek Lech Mostwin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JACEK LECH MOSTWIN M.D. (NPI 1487607149) is an individual urology provider in Baltimore, Maryland, licensed in Maryland (D21971) and active in the NPI registry since May 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)
Jacek Lech Mostwin M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jacek Mostwin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 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.
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.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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
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 Jacek Mostwin's NPI number?
The NPI number for Jacek Mostwin is 1487607149. It was assigned to this individual provider in the NPPES registry on May 17, 2006.
Where is Jacek Mostwin located?
Jacek Mostwin practices at 601 N Caroline St, Baltimore, MD 21287. The listed phone number is (410) 955-6100.
What is Jacek Mostwin's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Jacek Mostwin enrolled in Medicare?
Yes. Jacek Mostwin is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jacek Mostwin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jacek Mostwin 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 Jacek Mostwin'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 Jacek Mostwin was last updated on February 13, 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.
# Jacek Lech Mostwin, M.D. · NPI 1487607149
Urology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 17, 2006.
## Identity
- **NPI:** 1487607149 (Entity type: Individual)
- **Enumerated:** May 17, 2006
- **Primary specialty:** Urology · taxonomy 208800000X
- **State license:** D21971 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 601 N CAROLINE ST, Baltimore, MD 21287-0006
- **Phone:** (410) 955-6100
## 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 1295731966, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 13, 2013
- **Other identifiers:** Medicare PIN KS16231N (MD); Medicare UPIN B70631 (MD); Medicaid 382191900 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1487607149) · Data from the CMS NPPES public registry.