Sean R. Mattingly, FNP
Family Nurse Practitioner · Frederick, MD
Sean R. Mattingly, FNP is a family nurse practitioner with a practice address in Frederick, Maryland, and NPI 1245879980, issued on Dec 28, 2019. Check the license (Maryland R215838, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sean R. Mattingly
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- R215838 MD
Self-reported in NPPES; status is on the state search - Practice location
- 501 W 7TH St, Frederick, MD 21701
- Phone
- (301) 698-8375
- Enumerated
- Dec 28, 2019
- Record last updated
- Jan 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200309000039); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,124 in Maryland → Look up another NPI →
Also registered at 501 W 7TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stacy Bartolich, CRNPFamily Nurse Practitioner1427434521
- Christopher Benson, APRNNurse Practitioner1124754163
- Keisha Bernard, FNP-CFamily Nurse Practitioner1821461849
Verify Sean R. Mattingly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R215838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average family nurse practitioner in 2024
497 Medicare Part D claims for 362 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone51 claims
- Doxycycline Hyclate48 claims
- Cephalexin38 claims
- Albuterol Sulfate Hfa36 claims
- Amoxicillin-Clavulanate Potass36 claims
- Methylprednisolone35 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Frederick Health Medical Group LLCBrunswick, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean R. Mattingly among 4,124 family nurse practitioner records in Maryland
Sean R. Mattingly, FNP is one of 4,124 family nurse practitioner records with a practice address in Maryland. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 50% of them.
- NPI issued2019 · 50% of these records are older, 42% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2019 · median 2019 among the 2,370 with a school on file
- Record last updated2021 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
136 family nurse practitioner records list a practice address in Frederick
They are 136 of the 3,981 NPPES records with a practice address in Frederick, and 4,124 family nurse practitioner records in Maryland.
All 4,124 in Maryland → Every provider in Frederick → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Adobea Asiam, CRNPFrederick, MD 217011659724623
- Stacy Bartolich, CRNPFrederick, MD 217011427434521
- Keisha Bernard, FNP-CFrederick, MD 217011821461849
- Nickeea Chalmers-ScottFrederick, MD 217011730582040
- Arden Cooper, FNP-BCFrederick, MD 217011528471455
- Kelly Llewellyn, CRNP, FNP-BCFrederick, MD 217011336578947
- Marla Mullen, CRNPFrederick, MD 217011457496911
- Nicole Mullendore, FNP-BCFrederick, MD 217011437409489
Common questions
What is Sean R. Mattingly, FNP's NPI number?
Sean R. Mattingly, FNP's National Provider Identifier (NPI) is 1245879980, issued on Dec 28, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Sean R. Mattingly, FNP located?
The NPPES record lists a practice address at 501 W 7TH St, Frederick, MD, 21701. Phone: (301) 698-8375. Providers update this record themselves, so call before visiting.
How can I verify Sean R. Mattingly, FNP's license?
NPPES lists Maryland license number R215838, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Sean R. Mattingly, FNP prescribe under Medicare Part D?
In 2024, Sean R. Mattingly, FNP had 497 Medicare Part D claims for 362 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Sean R. Mattingly, FNP's MIPS final score?
The 2023 MIPS final score is 80.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.