Diana Lee Mackensen, FNP-C
Family Nurse Practitioner · Willoughby, OH
Diana Lee Mackensen, FNP-C is a family nurse practitioner with a practice address in Willoughby, Ohio, and NPI 1629575329, issued on Apr 9, 2018. Check the license (Ohio APRN.CNP.021979, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Lee Mackensen
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- APRN.CNP.021979 OH
Self-reported in NPPES; status is on the state search - Practice location
- 36060 Euclid Ave, Willoughby, OH 44094
- Phone
- (440) 953-9600
- Enumerated
- Apr 9, 2018
- Record last updated
- Apr 9, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180709000593); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 9,647 in Ohio → Look up another NPI →
Also registered at 36060 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jaye Benjamin, M.D.Dermatology Physician1649252743
- Sherry Clemente, CNPFamily Nurse Practitioner1528494531
- David Hutt, M.D.Infectious Disease Physician1992739445
- Jeffrey Jordan, NP-CFamily Nurse Practitioner1770890055
- William Petraiuolo, MDSurgery Physician1144336470
- David Rollins, MDVascular Surgery Physician1639106594
Verify Diana Lee Mackensen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license APRN.CNP.021979Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family nurse practitioner in 2024
178 Medicare Part D claims for 67 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Sodium Chloride28 claims
- Ampicillin-Sulbactam21 claims
- Vancomycin Hcl20 claims
- Amoxicillin-Clavulanate Potass17 claims
- Piperacillin-Tazobactam16 claims
- Ceftriaxone11 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): 100 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
- Axelix Health Consulting IncPainesville, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Lee Mackensen among 9,647 family nurse practitioner records in Ohio
Diana Lee Mackensen, FNP-C is one of 9,647 family nurse practitioner records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 46% of them.
- NPI issued2018 · 46% of these records are older, 46% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2018 among the 6,366 with a school on file
- Record last updated2018 · 40% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 family nurse practitioner records list a practice address in Willoughby
They are 36 of the 1,110 NPPES records with a practice address in Willoughby, and 9,647 family nurse practitioner records in Ohio.
All 9,647 in Ohio → Every provider in Willoughby → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Shannon Bailey, APRNWilloughby, OH 440941356709265
- Sherry Clemente, CNPWilloughby, OH 440941528494531
- Tawana CunninghamWilloughby, OH 440941841674009
- Malissa Delgrosso, FNPWilloughby, OH 440941326395211
- Carolyn Dixon, CNPWilloughby, OH 440941003153644
- Enoch Farmer, CNPWilloughby, OH 440941316273378
- Barbara Hartley, FNP-CWilloughby Hills, OH 440941952709297
- Robert Jonath, NP-CWilloughby, OH 440941003282328
Common questions
What is Diana Lee Mackensen, FNP-C's NPI number?
Diana Lee Mackensen, FNP-C's National Provider Identifier (NPI) is 1629575329, issued on Apr 9, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Diana Lee Mackensen, FNP-C located?
The NPPES record lists a practice address at 36060 Euclid Ave, Willoughby, OH, 44094. Phone: (440) 953-9600. Providers update this record themselves, so call before visiting.
How can I verify Diana Lee Mackensen, FNP-C's license?
NPPES lists Ohio license number APRN.CNP.021979, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Diana Lee Mackensen, FNP-C prescribe under Medicare Part D?
In 2024, Diana Lee Mackensen, FNP-C had 178 Medicare Part D claims for 67 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Diana Lee Mackensen, FNP-C's MIPS final score?
The 2023 MIPS final score is 100 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.