John Harold Montgomery, D.O.
Psychiatry Physician · Pascagoula, MS
John Harold Montgomery, D.O. is a psychiatry physician with a practice address in Pascagoula, Mississippi, and NPI 1821027368, issued on Jun 30, 2006. Check the license (Mississippi 18132, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- John Harold Montgomery
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 18132 MS
Self-reported in NPPES; status is on the state search - Practice location
- 4502 LT Eugene J Majure Dr, Pascagoula, MS 39581
- Phone
- (228) 696-9224
- Enumerated
- Jun 30, 2006
- Record last updated
- Mar 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (228) 696-9228
- Medicaid ID
- 03707333 MS
- Medicare enrollment
- Enrolled (PECOS I20050713000646); accepts Medicare assignment
- Medical or professional school
- Nova Southeastern College Of Osteo Medicine, 1998
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 272 in Mississippi → Look up another NPI →
Also registered at 4502 LT Eugene J Majure Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Baker, NPPsychiatric/Mental Health Nurse Practitioner1891354114
- Karla McCarthy, LCSWClinical Social Worker1619725892
- Perry Morgan, MDPsychiatry Physician1982167359
- Olga Owens, FNP-BCPsychiatric/Mental Health Nurse Practitioner1720418726
- Pamela Rawdon, LCSWClinical Social Worker1750338703
- Roger Ridgeway, M.D.Psychiatry Physician1427219799
Verify John Harold Montgomery in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 18132Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average psychiatry physician in 2024
950 Medicare Part D claims for 159 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Mirtazapine140 claims
- Trazodone Hcl68 claims
- Quetiapine Fumarate50 claims
- Duloxetine Hcl49 claims
- Risperidone41 claims
- Pantoprazole Sodium38 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.
One hospital affiliation
- Singing River Health SystemPascagoula, MS · Acute Care Hospitals1 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
John Harold Montgomery among 272 psychiatry physician records in Mississippi
John Harold Montgomery, 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
- Graduated1998 · median 2004 among the 111 with a school on file
- Record last updated2020 · 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).
Psychiatry Physician providers in Mississippi
There are 272 psychiatry physician records in Mississippi.
All 272 in Mississippi → Every provider in Pascagoula → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Perry Morgan, MDPascagoula, MS 395811982167359
- Jeremy Owens, M.D.Pascagoula, MS 395811639246739
- Roger Ridgeway, M.D.Pascagoula, MS 395811427219799
- William Smith, MDPascagoula, MS 395811093759722
- Anastasia Kelley, MDOcean Springs, MS 395641235228297
- Crystal Cloy, PMHNPBrookhaven, MS 396011548754211
- John Richardson, MDBrookhaven, MS 396011144230038
- Dustin Marmalich, MDLong Beach, MS 395601093135154
Common questions
What is John Harold Montgomery, D.O.'s NPI number?
John Harold Montgomery, D.O.'s National Provider Identifier (NPI) is 1821027368, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Harold Montgomery, D.O. located?
The NPPES record lists a practice address at 4502 LT Eugene J Majure Dr, Pascagoula, MS, 39581. Phone: (228) 696-9224. Providers update this record themselves, so call before visiting.
How can I verify John Harold Montgomery, D.O.'s license?
NPPES lists Mississippi license number 18132, 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 John Harold Montgomery, D.O. prescribe under Medicare Part D?
In 2024, John Harold Montgomery, D.O. had 950 Medicare Part D claims for 159 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.