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DR. THOMAS GRIFFIN GAINES M.D.
NPI 1679731574
Internal Medicine - Interventional Cardiology in Metairie, LA

Active since May 28, 2008PECOS Enrolled
3530 HOUMA BLVD STE 300, METAIRIE, LA 70006(504) 264-5142 Get Directions Write a Review

NPPES record last updated: April 20, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 20, 2021, Feb 1, 2021, Nov 20, 2018 and 1 more (4 updates tracked since 2016).

About Dr. Thomas Griffin Gaines M.d. NPPES

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

DR. THOMAS GRIFFIN GAINES M.D. (NPI 1679731574) is an individual interventional cardiology provider in Metairie, Louisiana, licensed in Louisiana (MD.204325) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1679731574
Entity TypeIndividualMale
Primary Taxonomy207RI0011X
Provider Legal NameDR. THOMAS GRIFFIN GAINESCredential: M.D.
Location Address3530 HOUMA BLVD STE 300Metairie, LA 70006-4203
Mailing Address3100 Gentilly BlvdNew Orleans, LA 70122-3854 · (504) 383-0599 · Fax (504) 383-0594
Phone(504) 264-5142
Sole ProprietorNo
Enumeration DateMay 28, 2008
Last NPPES UpdateApril 20, 20214 updates tracked since enumeration
NPPES CertifiedApril 20, 2021
✔ NPI 1679731574 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RI0011X
Licenses✔ Licensed in LA · MD.204325✔ Licensed in FL · ME127642
Definition
An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.
Also ListedInternal MedicineTaxonomy 207R00000X · License ME127642 (FL), MD.204325 (LA)
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License ME127642 (FL)
3530 HOUMA BLVD STE 300, Metairie, LA 70006
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Secondary Practice Locations 2

Location 1107 Maryland DrLuling, LA 70070-2163 · Phone (985) 308-1604 · Fax (985) 308-1605
Location 23100 Gentilly BlvdNew Orleans, LA 70122-3854 · Phone (504) 383-0599 · Fax (504) 383-0594

Other Identifiers 1

Medicaid1090972LA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Thomas Griffin Gaines M.d. 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 Reassignments

3

Medicare enrollment records show Thomas Gaines reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cardiovascular Institute Of The South, LLC
43 mi
Cardiovascular Disease
225 DUNN ST
Houma, LA 70360
  • Reassigned Medicare billing, Louisiana enrollment
  • 162 clinicians in this Medicare group
NPI 1982689113 (985) 876-0300
Ekg Panel Of Blake
490 mi
Cardiovascular Disease
2020 59TH ST W, BLAKE MEDICAL CENTER
Bradenton, FL 34209
  • Reassigned Medicare billing, Florida enrollment
  • 9 clinicians in this Medicare group
NPI 1356733695 (941) 321-2830
Pmr La Holding, LLC
670 mi
Specialist
1395 NW 167TH ST
Miami Gardens, FL 33169
  • Reassigned Medicare billing, Louisiana enrollment
  • 33 clinicians in this Medicare group
NPI 1700333689 (305) 628-6117

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 70006 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
$128.88 typical visit price
range $55.50 – $170.30
Typical copayment $32.22 (range $13.87 – $42.57)
Most-billed visit code 99204
Established Patient
$98.35 typical visit price
range $17.42 – $138.03
Typical copayment $24.58 (range $4.35 – $34.50)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

DR. CHIEMEZIE ONYEWUCHI MD
Internal Medicine
3530 HOUMA BLVD STE 300
METAIRIE, LA 70006
Jefferson Parish (504) 264-5142
DR. THORKELL EINARSSON MD
Family Medicine
3530 HOUMA BLVD STE 300
METAIRIE, LA 70006
Jefferson Parish (504) 264-5142
NOEL HELENA BAKER MSN, APN, FNP-C
Nurse Practitioner
3530 HOUMA BLVD STE 300
METAIRIE, LA 70006
Jefferson Parish (504) 264-5142
DEBRA ANN STUMPF HOLLISTER D.O.
Family Medicine
3530 HOUMA BLVD STE 300
METAIRIE, LA 70006
Jefferson Parish (504) 264-5142
FADI HAWAWINI DO
Hospitalist
3530 HOUMA BLVD STE 300
METAIRIE, LA 70006
Jefferson Parish (504) 264-5142
MS. JENNA MARIE LASKEY D.O.
Family Medicine
3530 HOUMA BLVD STE 300
METAIRIE, LA 70006
Jefferson Parish (504) 264-5142
LAURA E BATEMAN M.D.
Internal Medicine
3530 HOUMA BLVD STE 300
METAIRIE, LA 70006
Jefferson Parish (504) 264-5142
DR. NIMISH N CHOKSHI DPM
Podiatrist (Foot & Ankle Surgery)
3530 HOUMA BLVD STE 300
METAIRIE, LA 70006
Jefferson Parish (504) 264-5142

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 Thomas Gaines's NPI number?

The NPI number for Thomas Gaines is 1679731574. It was assigned to this individual provider in the NPPES registry on May 28, 2008.

Where is Thomas Gaines located?

Thomas Gaines practices at 3530 Houma Blvd Ste 300, Metairie, LA 70006. The listed phone number is (504) 264-5142.

What is Thomas Gaines's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Thomas Gaines enrolled in Medicare?

Yes. Thomas Gaines is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Thomas Gaines's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Gaines reassigns Medicare benefits to 3 organizations: Cardiovascular Institute Of The South, LLC (Houma, LA), Ekg Panel Of Blake (Bradenton, FL) and Pmr La Holding, LLC (Miami Gardens, FL). Each 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 Thomas Gaines's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Thomas Gaines was last updated on April 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.