Timothy Lyon Arnold, D.O.
Psychiatry Physician · Meridian, MS
Timothy Lyon Arnold, D.O. is a psychiatry physician with a practice address in Meridian, Mississippi, and NPI 1861462178, issued on Jan 26, 2006. Check the license (Mississippi 19843, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Timothy Lyon Arnold
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 19843 MS
MB07027800 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 5000 Highway 39 N, Meridian, MS 39301
- Phone
- (601) 483-6211
- Enumerated
- Jan 26, 2006
- Record last updated
- Jun 25, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (601) 482-3623
- Medicaid IDs
- 06481203 MS
8861102 NJ - Medicare enrollment
- Enrolled (PECOS I20070829000929); accepts Medicare assignment
- Medical or professional school
- Rowan University School Of Osteopathic Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 272 in Mississippi → Look up another NPI →
Also registered at 5000 Highway 39 N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Frances Avera, LCSWClinical Social Worker1063554665
- Sarah Caples, LMFTMarriage & Family Therapist1386029346
- Shauntae CauseyPsychiatric/Mental Health Nurse Practitioner1629600721
- Whitney Fuller, LCSWClinical Social Worker1952135113
- Leigh Gillespie, FPMHNP-BCChild & Adolescent Psychiatric/Mental Health Registered Nurse1386893717
- Jessica Gordon, D.O.Psychiatry Physician1215145222
Verify Timothy Lyon Arnold in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 19843Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average psychiatry physician in 2024
477 Medicare Part D claims for 99 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Trazodone Hcl63 claims
- Omeprazole22 claims
- Amlodipine Besylate19 claims
- Albuterol Sulfate Hfa18 claims
- Atorvastatin Calcium18 claims
- Buprenorphine-Naloxone17 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: $20.12
1 payment: food and beverage; the largest payer was Indivior Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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
- Alliance Health Center IncMeridian, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Lyon Arnold among 272 psychiatry physician records in Mississippi
Timothy Lyon Arnold, D.O. is one of 272 psychiatry physician records with a practice address in Mississippi. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 61% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated1997 · median 2004 among the 111 with a school on file
- Record last updated2013 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 psychiatry physician records list a practice address in Meridian
They are 13 of the 1,291 NPPES records with a practice address in Meridian, and 272 psychiatry physician records in Mississippi.
All 272 in Mississippi → Every provider in Meridian → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Patricia Dudley, M.D.Meridian, MS 393011124234307
- Jessica Gordon, D.O.Meridian, MS 393011215145222
- Terry Jordan, MDMeridian, MS 393011417046327
- Mary Larkin, MDMeridian, MS 393011013056555
- Jeffrey McGilbra, MDMeridian, MS 393011578542007
- William Touchstone, M.D.Meridian, MS 393011245249184
- Sheridan Tucker, M.D.Meridian, MS 393011801971379
- Grace Kelly, MDMeridian, MS 393051255462230
Common questions
What is Timothy Lyon Arnold, D.O.'s NPI number?
Timothy Lyon Arnold, D.O.'s National Provider Identifier (NPI) is 1861462178, issued on Jan 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Lyon Arnold, D.O. located?
The NPPES record lists a practice address at 5000 Highway 39 N, Meridian, MS, 39301. Phone: (601) 483-6211. Providers update this record themselves, so call before visiting.
How can I verify Timothy Lyon Arnold, D.O.'s license?
NPPES lists Mississippi license number 19843, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy Lyon Arnold, D.O. prescribe under Medicare Part D?
In 2024, Timothy Lyon Arnold, D.O. had 477 Medicare Part D claims for 99 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.