Mary Kathleen Mackenzie, CRNP
Nurse Practitioner · Wilmington, DE
Mary Kathleen Mackenzie, CRNP is a nurse practitioner with a practice address in Wilmington, Delaware, and NPI 1881810356, issued on Apr 17, 2007. Check the license (Delaware LB-0000170, as entered in NPPES) with the Delaware board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Kathleen Mackenzie
- Credential
- CRNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- LB-0000170 DE
Self-reported in NPPES; status is on the state search - Practice location
- 1601 Kirkwood Hwy, Wilmington, DE 19805
- Phone
- (302) 994-2511
- Enumerated
- Apr 17, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (302) 633-5438
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 545 in Delaware → Look up another NPI →
Also registered at 1601 Kirkwood Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Kathleen Mackenzie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license LB-0000170Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mary Kathleen Mackenzie among 545 nurse practitioner records in Delaware
Mary Kathleen Mackenzie, CRNP is one of 545 nurse practitioner records with a practice address in Delaware. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 20% of them.
- NPI issued2007 · 20% of these records are older, 74% newer
- In a Medicare fileNo · 66% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2007 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
196 nurse practitioner records list a practice address in Wilmington
They are 196 of the 6,291 NPPES records with a practice address in Wilmington, and 545 nurse practitioner records in Delaware. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 545 in Delaware → Every provider in Wilmington → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Hannah Abinteh, NPWilmington, DE 198051568070449
- Vilma Davis, APNWilmington, DE 198051982795225
- James Horstmyer, CRNPWilmington, DE 198051972554087
- Maryellen Kopp, APNWilmington, DE 198051255451092
- Michelle Langrehr, NPWilmington, DE 198051427085950
- Sa Lu, NPWilmington, DE 198051770747651
- Veronica Mahaffy, CRNAWilmington, DE 198051164516795
- Gloria SchwagelWilmington, DE 198051164015905
Common questions
What is Mary Kathleen Mackenzie, CRNP's NPI number?
Mary Kathleen Mackenzie, CRNP's National Provider Identifier (NPI) is 1881810356, issued on Apr 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kathleen Mackenzie, CRNP located?
The NPPES record lists a practice address at 1601 Kirkwood Hwy, Wilmington, DE, 19805. Phone: (302) 994-2511. Providers update this record themselves, so call before visiting.
How can I verify Mary Kathleen Mackenzie, CRNP's license?
NPPES lists Delaware license number LB-0000170, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity 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. 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.