Maria Diana Oexmann, MSN, APRN, FNP-C,
Family Nurse Practitioner · Lexington, KY
Maria Diana Oexmann, MSN, APRN, FNP-C, is a family nurse practitioner with a practice address in Lexington, Kentucky, and NPI 1629736863, issued on Dec 6, 2021. Check the license (Kentucky 3016829, as entered in NPPES) with the Kentucky board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria Diana Oexmann
- Credential
- MSN, APRN, FNP-C,
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 3016829 KY
Self-reported in NPPES; status is on the state search - Practice location
- 2195 Harrodsburg RD, Lexington, KY 40504
- Phone
- (859) 323-2356
- Enumerated
- Dec 6, 2021
- Record last updated
- Dec 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (859) 323-5799
- Medicare enrollment
- Enrolled (PECOS I20211228001905); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,545 in Kentucky → Look up another NPI →
Also registered at 2195 Harrodsburg RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scarlett Bardo, FNP-BCFamily Nurse Practitioner1215358866
- Teia Brandenburg, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1548623051
- Lee Brewer, APRNFamily Nurse Practitioner1114239704
- Blythe Brown, PHARMDPharmacist1215479449
- Baylee BurkeAthletic Trainer1750040168
- Isaac CampbellOrthopedic Physical Therapist1053290510
Verify Maria Diana Oexmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Kentucky board licenses this profession
Search for license 3016829Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% more Medicare Part D claims than the average family nurse practitioner in 2024
1,710 Medicare Part D claims for 224 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril102 claims
- Atorvastatin Calcium89 claims
- Amlodipine Besylate82 claims
- Levothyroxine Sodium80 claims
- Meloxicam48 claims
- Omeprazole48 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
- University OF KentuckyLexington, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Diana Oexmann among 5,545 family nurse practitioner records in Kentucky
Maria Diana Oexmann, MSN, APRN, FNP-C, is one of 5,545 family nurse practitioner records with a practice address in Kentucky. 84% 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 68% of them.
- NPI issued2021 · 68% of these records are older, 24% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2021 · median 2018 among the 3,839 with a school on file
- Record last updated2021 · 39% 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 Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
610 family nurse practitioner records list a practice address in Lexington
They are 610 of the 14,031 NPPES records with a practice address in Lexington, and 5,545 family nurse practitioner records in Kentucky.
All 5,545 in Kentucky → Every provider in Lexington → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Joyce Allen, APRN-FNPLexington, KY 405041518973064
- Cathy Dotson, ARNPLexington, KY 405041457686065
- Carolyn Estepp, APRNLexington, KY 405041184872608
- Wynetta Fletcher, APRNLexington, KY 405041720070048
- Rebecca Frankenfield, ARNPLexington, KY 405041487681508
- Leslie Graves, ARNPLexington, KY 405041164675278
- Stacy Mills, APRNLexington, KY 405041134226434
- Joan Osborne, APRNLexington, KY 405041285739797
Common questions
What is Maria Diana Oexmann, MSN, APRN, FNP-C,'s NPI number?
Maria Diana Oexmann, MSN, APRN, FNP-C,'s National Provider Identifier (NPI) is 1629736863, issued on Dec 6, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Maria Diana Oexmann, MSN, APRN, FNP-C, located?
The NPPES record lists a practice address at 2195 Harrodsburg RD, Lexington, KY, 40504. Phone: (859) 323-2356. Providers update this record themselves, so call before visiting.
How can I verify Maria Diana Oexmann, MSN, APRN, FNP-C,'s license?
NPPES lists Kentucky license number 3016829, as entered by the provider. Search the Kentucky board that licenses this profession; the NPPES record confirms identity only.
How much does Maria Diana Oexmann, MSN, APRN, FNP-C, prescribe under Medicare Part D?
In 2024, Maria Diana Oexmann, MSN, APRN, FNP-C, had 1,710 Medicare Part D claims for 224 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Maria Diana Oexmann, MSN, APRN, 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.