John Vallian, MD
Specialist · Opelousas, LA
John Vallian, MD is a specialist with a practice address in Opelousas, Louisiana, and NPI 1023003159, issued on Sep 14, 2005. Check the license (Louisiana 08449R, as entered in NPPES) with the Louisiana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Vallian
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 08449R LA
Self-reported in NPPES; status is on the state search - Practice location
- 219 Depot Street, Opelousas, LA 70570
- Phone
- (337) 543-1063
- Enumerated
- Sep 14, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (337) 543-1073
- Medicaid ID
- 1921033 LA
- Entity
- Type 1 · individual
8 nearest specialist records → All 550 in Louisiana → Look up another NPI →
Verify John Vallian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license 08449RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Vallian among 550 specialist records in Louisiana
John Vallian, MD is one of 550 specialist records with a practice address in Louisiana. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileNo · 36% of these records are
- In the CMS Doctors and Clinicians fileNo · 23% of these records are
- Record last updated2007 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Louisiana
There are 550 specialist records in Louisiana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 550 in Louisiana → Every provider in Opelousas → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- C. Boagni, M.D.Opelousas, LA 705701689873440
- Thomas Jarnagin, MDOpelousas, LA 705701265411797
- John Kempf, M.D.,F.A.C.O.G.Opelousas, LA 705701144287079
- Mia Singleton-Ben, M.D.Opelousas, LA 705701619040342
- Robert Miller, M.D.New Iberia, LA 705631154333110
- James Falterman, MDNew Iberia, LA 705601215928163
- Edward Haile, MDNew Iberia, LA 705601295831105
- Conway Geoffroy, P.T.St Martinville, LA 705821104985035
Common questions
What is John Vallian, MD's NPI number?
John Vallian, MD's National Provider Identifier (NPI) is 1023003159, issued on Sep 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Vallian, MD located?
The NPPES record lists a practice address at 219 Depot Street, Opelousas, LA, 70570. Phone: (337) 543-1063. Providers update this record themselves, so call before visiting.
How can I verify John Vallian, MD's license?
NPPES lists Louisiana license number 08449R, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity 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. 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.