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DR. JAMES BREWSTER GARDNER JR. M.D.
NPI 1487824637
Pediatrics - Pediatric Endocrinology in Baton Rouge, LA

Active since March 04, 2008PECOS Enrolled
8200 CONSTANTIN BLVD FL 4, BATON ROUGE, LA 70809(225) 765-5500(225) 765-1733 Get Directions Write a Review

NPPES record last updated: July 28, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. James Brewster Gardner Jr. M.d. NPPES

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

DR. JAMES BREWSTER GARDNER JR. M.D. (NPI 1487824637) is an individual pediatric endocrinology provider in Baton Rouge, Louisiana, licensed in Louisiana (MD.026402) and active in the NPI registry since March 2008. He is enrolled in Medicare PECOS and maintains a secondary practice location in Monroe.

NPPES Registry Identity

NPI1487824637
Entity TypeIndividualMale
Primary Taxonomy2080P0205X
Provider Legal NameDR. JAMES BREWSTER GARDNER JR.Credential: M.D.
Location Address8200 CONSTANTIN BLVD FL 4Baton Rouge, LA 70809-3481
Mailing Address5959 S Sherwood Forest BlvdBaton Rouge, LA 70816-6038 · (225) 765-5500 · Fax (225) 765-9196
Phone(225) 765-5500
Fax(225) 765-1733
Sole ProprietorNo
Enumeration DateMarch 4, 2008
Last NPPES UpdateJuly 28, 2025
NPPES CertifiedJuly 28, 2025
✔ NPI 1487824637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in LA · MD.026402
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
Also ListedPediatricsTaxonomy 208000000X · License MD.28842 (AL), MD.026402 (LA)
8200 CONSTANTIN BLVD FL 4, Baton Rouge, LA 70809
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Secondary Practice Location 1

Location 13401 Magnolia CvMonroe, LA 71203-2375 · Phone (318) 966-5400 · Fax (318) 966-5401

Other Identifiers 2

Medicaid07176038MS
Medicaid1062634LA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AmeriHealth Caritas Next, Blue Cross and Blue Shield of Louisiana, HMO Louisiana and more.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. James Brewster Gardner Jr. 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

2

Medicare enrollment records show James Gardner reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Our Lady Of The Lake Physician Group LLC
0.6 mi
Internal Medicine
7777 HENNESSY BLVD, STE 6002
Baton Rouge, LA 70808
  • Reassigned Medicare billing, Louisiana enrollment
  • 873 clinicians in this Medicare group
NPI 1033494943 (225) 765-7727
St Francis Medical Group LLC
157 mi
Internal Medicine
312 GRAMMONT ST STE 411
Monroe, LA 71201
  • Reassigned Medicare billing, Louisiana enrollment
  • 222 clinicians in this Medicare group
NPI 1134405087 (318) 966-6480

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 70809 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
$124.60 typical visit price
range $53.43 – $164.73
Typical copayment $31.15 (range $13.35 – $41.18)
Most-billed visit code 99204
Established Patient
$95.09 typical visit price
range $16.64 – $133.62
Typical copayment $23.77 (range $4.16 – $33.40)
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.

MANISH GOPE RAISINGANI
Pediatrics (Pediatric Endocrinology)
8200 CONSTANTIN BLVD FL 4
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 765-5500
TAYLOR GIANGRANDE MS, RDN, LDN
Dietitian, Registered (Nutrition, Pediatric)
8200 CONSTANTIN BLVD FL 4
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 765-5500
DR. BRADLEY CHRISTOPHER ANDING MD
Pediatrics (Pediatric Gastroenterology)
8200 CONSTANTIN BLVD FL 4
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 765-5500
DAYNA MARIE LITTLE LCSW
Social Worker (Clinical)
8200 CONSTANTIN BLVD FL 4
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 765-5500
ELIZABETH TOUPS
Dietitian, Registered (Nutrition, Pediatric)
8200 CONSTANTIN BLVD FL 4
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 374-1362
ASHLEY RAWSON MD
Pediatrics (Pediatric Nephrology)
8200 CONSTANTIN BLVD FL 4
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 765-5500
MRS. LACEY ST. AMANT NP
Nurse Practitioner (Pediatrics)
8200 CONSTANTIN BLVD FL 4
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 765-5500
SANDRA GUERGUIS M.D.
Pediatrics (Pediatric Infectious Diseases)
8200 CONSTANTIN BLVD FL 4
BATON ROUGE, LA 70809
East Baton Rouge Parish (225) 765-5500

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 James Gardner's NPI number?

The NPI number for James Gardner is 1487824637. It was assigned to this individual provider in the NPPES registry on March 4, 2008.

Where is James Gardner located?

James Gardner practices at 8200 Constantin Blvd Fl 4, Baton Rouge, LA 70809. The listed phone number is (225) 765-5500.

What is James Gardner's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is James Gardner enrolled in Medicare?

Yes. James Gardner is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Gardner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Gardner reassigns Medicare benefits to 2 organizations: Our Lady Of The Lake Physician Group LLC (Baton Rouge, LA) and St Francis Medical Group LLC (Monroe, LA). 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 James Gardner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Gardner accept?

Health plans from AmeriHealth Caritas Next, Blue Cross and Blue Shield of Louisiana, HMO Louisiana and UnitedHealthcare list James Gardner 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 James Gardner was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.