GREGORY FREDERICK PARR CRNP
NPI 1366403131
Nurse Practitioner - Adult Health in Baltimore, MD
About Gregory Frederick Parr Crnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY FREDERICK PARR CRNP (NPI 1366403131) is an individual adult health provider in Baltimore, Maryland, licensed in Maryland (R075508) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gregory Frederick Parr Crnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gregory Parr reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seaford, DE 19973
- Reassigned Medicare billing, Delaware enrollment
- 29 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 21201 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 21201
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Gregory Parr's NPI number?
The NPI number for Gregory Parr is 1366403131. It was assigned to this individual provider in the NPPES registry on March 31, 2006.
Where is Gregory Parr located?
Gregory Parr practices at 10 N Greene St Vamc Baltimore, Division Of Infectious Diseases, Baltimore, MD 21201. The listed phone number is (410) 605-7000.
What is Gregory Parr's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Gregory Parr enrolled in Medicare?
Yes. Gregory Parr is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gregory Parr's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Parr reassigns Medicare benefits to Tidalhealth Nanticoke, Inc (Seaford, DE). 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 Gregory Parr's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Parr accept?
Health plans from AmeriHealth Caritas Next list Gregory Parr as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Gregory Parr was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Gregory Frederick Parr, CRNP · NPI 1366403131
Adult Health physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since March 31, 2006.
## Identity
- **NPI:** 1366403131 (Entity type: Individual)
- **Enumerated:** March 31, 2006
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** R075508 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 10 N GREENE ST, VAMC BALTIMORE, DIVISION OF INFECTIOUS DISEASES, Baltimore, MD 21201-1524
- **Phone:** (410) 605-7000 · **Fax:** (410) 605-7709
## 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:** Tidalhealth Nanticoke, Inc (NPI 1245214477, Seaford, DE), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1366403131) · Data from the CMS NPPES public registry.