Christina Day Mahan, PMHNP
Psychiatric/Mental Health Nurse Practitioner · Louisville, TN
Christina Day Mahan, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Louisville, Tennessee, and NPI 1669121109, issued on Mar 22, 2022. Check the license (Tennessee 187872, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christina Day Mahan
- Credential
- PMHNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 187872 TN
Self-reported in NPPES; status is on the state search - Practice location
- 2347 Jones Bend RD, Louisville, TN 37777
- Phone
- (865) 970-9800
- Enumerated
- Mar 22, 2022
- Record last updated
- May 3, 2022
- Fax
- (865) 373-8225
- Medicare enrollment
- Enrolled (PECOS I20220520000525); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,611 in Tennessee → Look up another NPI →
Also registered at 2347 Jones Bend RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marie Bly, LCSWClinical Social Worker1619918620
- Kelly Carlson, APNPsychiatric/Mental Health Nurse Practitioner1548402654
- Jang Chen, M.D.Psychiatry Physician1255349890
- Jamie Collett, PMHNPPsychiatric/Mental Health Nurse Practitioner1982381505
- Sarah Koberlein, RN, BSN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1962027102
- Samuel Miser, PHARM.D.Pharmacist1982836763
Verify Christina Day Mahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 187872Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
399 Medicare Part D claims for 51 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.
Most prescribed
- Risperidone23 claims
- Atorvastatin Calcium21 claims
- Memantine Hcl19 claims
- Donepezil Hcl18 claims
- Levothyroxine Sodium14 claims
- Quetiapine Fumarate14 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.
Industry payments in 2024: $349.02
11 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Knoxville Center For Behavioral Medicine LLCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christina Day Mahan among 1,611 psychiatric/mental health nurse practitioner records in Tennessee
Christina Day Mahan, PMHNP is one of 1,611 psychiatric/mental health nurse practitioner records with a practice address in Tennessee. 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 2022, is newer than 61% of them.
- NPI issued2022 · 61% of these records are older, 31% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2022 · median 2020 among the 929 with a school on file
- Record last updated2022 · 25% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 psychiatric/mental health nurse practitioner records list a practice address in Louisville
They are 8 of the 118 NPPES records with a practice address in Louisville, and 1,611 psychiatric/mental health nurse practitioner records in Tennessee.
All 1,611 in Tennessee → Every provider in Louisville → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Kelly Carlson, APNLouisville, TN 377771548402654
- Jamie Collett, PMHNPLouisville, TN 377771982381505
- Jordan Evans, MSN, APRN, PMHNP-BCLouisville, TN 377771669147476
- Sarah Koberlein, RN, BSN, PMHNP-BCLouisville, TN 377771962027102
- Cassaundra Norton, RNLouisville, TN 377771205606076
- Jessica Paskwietz, PMHNP-BCLouisville, TN 377771760909592
- Sara Rutherford, PMHNP-BCLouisville, TN 377771205488764
- Carolyn Bivens, PMHNP-BCLenoir City, TN 377721114860996
Common questions
What is Christina Day Mahan, PMHNP's NPI number?
Christina Day Mahan, PMHNP's National Provider Identifier (NPI) is 1669121109, issued on Mar 22, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Christina Day Mahan, PMHNP located?
The NPPES record lists a practice address at 2347 Jones Bend RD, Louisville, TN, 37777. Phone: (865) 970-9800. Providers update this record themselves, so call before visiting.
How can I verify Christina Day Mahan, PMHNP's license?
NPPES lists Tennessee license number 187872, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Christina Day Mahan, PMHNP prescribe under Medicare Part D?
In 2024, Christina Day Mahan, PMHNP had 399 Medicare Part D claims for 51 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.