MR. SEAN R MATTINGLY FNP
NPI 1245879980
Nurse Practitioner - Family in Frederick, MD
About Mr. Sean R Mattingly Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. SEAN R MATTINGLY FNP (NPI 1245879980) is an individual family provider in Frederick, Maryland, licensed in Maryland (R215838) and active in the NPI registry since December 2019. He is enrolled in Medicare PECOS, is affiliated with Frederick Health Hospital, and is a graduate of Other (2019).
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 and accepts Medicare assignment
Mr. Sean R Mattingly Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Sean Mattingly reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Frederick, MD 21701
- Reassigned Medicare billing, Maryland enrollment
- 245 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.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Frederick Health Hospital
Acute Care Hospitals · Frederick, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21701 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FREDERICK, MD 21701
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 Sean Mattingly's NPI number?
The NPI number for Sean Mattingly is 1245879980. It was assigned to this individual provider in the NPPES registry on December 28, 2019.
Where is Sean Mattingly located?
Sean Mattingly practices at 501 W 7th St, Frederick, MD 21701. The listed phone number is (301) 698-8375.
What is Sean Mattingly's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Sean Mattingly enrolled in Medicare?
Yes. Sean Mattingly is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Sean Mattingly's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean Mattingly reassigns Medicare benefits to Frederick Health Medical Group LLC (Frederick, 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 Sean Mattingly's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sean Mattingly affiliated with any hospitals?
According to CMS data, Sean Mattingly is affiliated with Frederick Health Hospital.
When was this NPI record last updated?
The NPPES record for Sean Mattingly was last updated on January 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mr. Sean R Mattingly, FNP · NPI 1245879980
Family physician in Frederick, Maryland. Individual provider, active in the CMS NPPES registry since December 28, 2019.
## Identity
- **NPI:** 1245879980 (Entity type: Individual)
- **Enumerated:** December 28, 2019
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** R215838 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 501 W 7TH ST, Frederick, MD 21701-4586
- **Phone:** (301) 698-8375
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Frederick Health Medical Group LLC (NPI 1285156091, Frederick, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** January 13, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1245879980) · Data from the CMS NPPES public registry.