Mary Kate Mellin, FNP
Family Nurse Practitioner · Middletown, DE
Mary Kate Mellin, FNP is a family nurse practitioner with a practice address in Middletown, Delaware, and NPI 1265108013, issued on Aug 20, 2021. Check the license (Delaware LG-0011619, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Kate Mellin
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- LG-0011619 DE
Self-reported in NPPES; status is on the state search - Practice location
- 621 Middletown Odessa RD, Middletown, DE 19709
- Phone
- (302) 203-2230
- Enumerated
- Aug 20, 2021
- Record last updated
- Aug 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 709 in Delaware → Look up another NPI →
Also registered at 621 Middletown Odessa RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennifer Piaskowski, WHNPWomen's Health Nurse Practitioner1821641838
- Tracy Scott Armstrong, PT, DPTPhysical Therapist1316370125
- Chelsea Verdier, DOFamily Medicine Physician1801591565
Verify Mary Kate Mellin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license LG-0011619Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average family nurse practitioner in 2024
503 Medicare Part D claims for 106 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium51 claims
- Amlodipine Besylate36 claims
- Lisinopril26 claims
- Levothyroxine Sodium20 claims
- Albuterol Sulfate Hfa16 claims
- Duloxetine Hcl15 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.
Mary Kate Mellin among 709 family nurse practitioner records in Delaware
Mary Kate Mellin, FNP is one of 709 family nurse practitioner records with a practice address in Delaware. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 28% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2021 · 43% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 family nurse practitioner records list a practice address in Middletown
They are 32 of the 607 NPPES records with a practice address in Middletown, and 709 family nurse practitioner records in Delaware.
All 709 in Delaware → Every provider in Middletown → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Latrina Bailey, MSN, APRN, FNP-CMiddletown, DE 197091942787965
- Shernett Campbell, FNP-BCMiddletown, DE 197091891290789
- Patricia Gilpin, APRN,BC.Middletown, DE 197091376600544
- Brandi Gregge, FNP-BCMiddletown, DE 197091487063012
- Chayna Hardy-Reid, CRNPMiddletown, DE 197091508331778
- Kristine Jackson, FNPMiddletown, DE 197091467690487
- Shirline Johnson, FNP-BCMiddletown, DE 197091285111260
- Patrick Massaquoi, N.P.Middletown, DE 197091457788036
Common questions
What is Mary Kate Mellin, FNP's NPI number?
Mary Kate Mellin, FNP's National Provider Identifier (NPI) is 1265108013, issued on Aug 20, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kate Mellin, FNP located?
The NPPES record lists a practice address at 621 Middletown Odessa RD, Middletown, DE, 19709. Phone: (302) 203-2230. Providers update this record themselves, so call before visiting.
How can I verify Mary Kate Mellin, FNP's license?
NPPES lists Delaware license number LG-0011619, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Kate Mellin, FNP prescribe under Medicare Part D?
In 2024, Mary Kate Mellin, FNP had 503 Medicare Part D claims for 106 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
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.