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DR. MARK ALAN WELCH D.D.S.
NPI 1780600031
Dentist - Oral and Maxillofacial Surgery in Lafayette, LA

Active since July 13, 2006PECOS Enrolled
88.05/100
CMS Quality Rating
200 REPUBLIC AVE, I, LAFAYETTE, LA 70508(337) 988-1870(337) 988-1809 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Mark Alan Welch D.d.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK ALAN WELCH D.D.S. (NPI 1780600031) is an individual oral and maxillofacial surgery provider in Lafayette, Louisiana, licensed in Louisiana (3042) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780600031
Entity TypeIndividualMale
Primary Taxonomy1223S0112X
Provider Legal NameDR. MARK ALAN WELCHCredential: D.D.S.
Location Address200 REPUBLIC AVE, ILafayette, LA 70508-6826
Mailing Address200 Republic Ave, ILafayette, LA 70508-6826 · (337) 988-1870 · Fax (337) 988-1809
Phone(337) 988-1870
Fax(337) 988-1809
Sole ProprietorNo
Enumeration DateJuly 13, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1780600031 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · Oral and Maxillofacial SurgeryDental Providers
Taxonomy Code1223S0112X
License✔ Licensed in LA · 3042
Definition
An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
200 REPUBLIC AVE, Lafayette, LA 70508
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMO Louisiana.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Alan Welch D.d.s. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mark Welch reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Louisiana State University School Of Medicine In New Orleans Faculty G
118 mi
Multi-Specialty
478 S JOHNSON ST FL 6
New Orleans, LA 70112
  • Reassigned Medicare billing, Louisiana enrollment
  • 931 clinicians in this Medicare group
NPI 1477582526 (504) 412-1819

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 70508 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.60 typical visit price
range $53.43 – $164.73
Typical copayment $20.90 (range $13.35 – $41.18)
Most-billed visit code 99203
Established Patient
$67.06 typical visit price
range $16.64 – $133.62
Typical copayment $16.76 (range $4.16 – $33.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

88.05/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.6
Promoting Interoperability100
Improvement Activities40
Cost58.23

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MICHAEL GRAY FERGUSON DDS, MD
Dentist (Oral and Maxillofacial Surgery)
200 REPUBLIC AVE, SUITE I
LAFAYETTE, LA 70508
Lafayette Parish (337) 988-1870

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Welch's NPI number?

The NPI number for Mark Welch is 1780600031. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is Mark Welch located?

Mark Welch practices at 200 Republic Ave I, Lafayette, LA 70508. The listed phone number is (337) 988-1870.

What is Mark Welch's specialty?

The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.

Is Mark Welch enrolled in Medicare?

Yes. Mark Welch is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Welch's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Welch reassigns Medicare benefits to Louisiana State University School Of Medicine In New Orleans Faculty G (New Orleans, LA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Welch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Welch accept?

Health plans from HMO Louisiana list Mark Welch as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Welch was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.