LOUISE OPEL
NPI 1629907357
Nurse Practitioner - Psychiatric/Mental Health in Baltimore, MD
About Louise Opel NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LOUISE OPEL (NPI 1629907357) is an individual psychiatric/mental health provider in Baltimore, Maryland, licensed in Maryland (R228650) and active in the NPI registry since May 2026. The provider is enrolled in Medicare PECOS and is a graduate of Other (2026).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Louise Opel is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Louise Opel 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 21205 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21205
BALTIMORE, MD 21205
BALTIMORE, MD 21205
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 Louise Opel's NPI number?
The NPI number for Louise Opel is 1629907357. It was assigned to this individual provider in the NPPES registry on May 18, 2026.
Where is Louise Opel located?
Louise Opel practices at 550 N Broadway, Baltimore, MD 21205. The listed phone number is (410) 955-5000.
What is Louise Opel's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Louise Opel enrolled in Medicare?
Yes. Louise Opel is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Louise Opel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Louise Opel 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 Louise Opel'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 Louise Opel was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Louise Opel · NPI 1629907357
Psychiatric/Mental Health physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 18, 2026.
## Identity
- **NPI:** 1629907357 (Entity type: Individual)
- **Enumerated:** May 18, 2026
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** R228650 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 550 N BROADWAY, Baltimore, MD 21205-2020
- **Phone:** (410) 955-5000
## 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
- **Medical school:** Other, class of 2026
## Record status
- **NPPES last updated:** May 18, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1629907357) · Data from the CMS NPPES public registry.