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DR. LINDA M. (MARGARET) KEEFER M.D., PH.D.
NPI 1376560367
Pediatrics in Madisonville, LA

Active since July 16, 2006PECOS Enrolled
1520 HIGHWAY 22 W, MADISONVILLE, LA 70447(985) 773-1600 Get Directions Write a Review

NPPES record last updated: June 23, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 23, 2021, Jun 7, 2019 (2 updates tracked since 2019).

About Dr. Linda M. (margaret) Keefer M.d., Ph.d. NPPES

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

DR. LINDA M. (MARGARET) KEEFER M.D., PH.D. (NPI 1376560367) is an individual pediatrics provider in Madisonville, Louisiana, licensed in Louisiana (10594R) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376560367
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. LINDA M. (MARGARET) KEEFERCredential: M.D., PH.D.
Location Address1520 HIGHWAY 22 WMadisonville, LA 70447-9441
Mailing Address71338 Highway 21 Ste 102Covington, LA 70433-7162 · (985) 773-1600
Phone(985) 773-1600
Sole ProprietorNo
Enumeration DateJuly 16, 2006
Last NPPES UpdateJune 23, 20212 updates tracked since enumeration
NPPES CertifiedJune 23, 2021
✔ NPI 1376560367 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in LA · 10594R
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1520 HIGHWAY 22 W, Madisonville, LA 70447
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, HMO Louisiana, UnitedHealthcare.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. Linda M. (margaret) Keefer M.d., Ph.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 Reassignment

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

St Tammany Parish Hospital Service District No 1
5.2 mi
Internal Medicine
80 GARDENIA DR, SUITE B
Covington, LA 70433
  • Reassigned Medicare billing, Louisiana enrollment
  • Also billed through NPI 1598798597 (Louisiana)
  • 75 clinicians in this Medicare group
NPI 1083793582 (985) 871-5900

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 70447 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
$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 6

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

MARGARET A LEEFE MD
Pediatrics
1520 HIGHWAY 22 W
MADISONVILLE, LA 70447
St. Tammany Parish (985) 898-4001
DR. KAITLYN CHRISTIAN LADNER DO
Family Medicine
1520 HIGHWAY 22 W
MADISONVILLE, LA 70447
St. Tammany Parish (985) 773-1600
MARGARET STRONG MD
Pediatrics
1520 HIGHWAY 22 W
MADISONVILLE, LA 70447
St. Tammany Parish (985) 773-1600
MS. PERRY RUSSELL FNP-C
Nurse Practitioner (Family)
1520 HIGHWAY 22 W
MADISONVILLE, LA 70447
St. Tammany Parish (985) 773-1600
CATHERINE JEANETTE PECHON M.D.
Family Medicine
1520 HIGHWAY 22 W
MADISONVILLE, LA 70447
St. Tammany Parish (985) 773-1600
ROBERT FAUCHEUX MD
Pediatrics
1520 HIGHWAY 22 W
MADISONVILLE, LA 70447
St. Tammany Parish (985) 773-1600

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 Linda Keefer's NPI number?

The NPI number for Linda Keefer is 1376560367. It was assigned to this individual provider in the NPPES registry on July 16, 2006.

Where is Linda Keefer located?

Linda Keefer practices at 1520 Highway 22 W, Madisonville, LA 70447. The listed phone number is (985) 773-1600.

What is Linda Keefer's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Linda Keefer enrolled in Medicare?

Yes. Linda Keefer is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Linda Keefer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Linda Keefer reassigns Medicare benefits to St Tammany Parish Hospital Service District No 1 (Covington, 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 Linda Keefer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Linda Keefer accept?

Health plans from Blue Cross and Blue Shield of Louisiana, HMO Louisiana and UnitedHealthcare list Linda Keefer 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 Linda Keefer was last updated on June 23, 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.