What is James Walker's NPI number?

James Walker's National Provider Identifier (NPI) is 1578581617, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is James Walker's specialty?

James Walker is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).

Where is James Walker located?

James Walker's practice location on file with NPPES is Lsu Health Sciences Center, Baton Rouge, LA 70808.

What is James Walker's phone number?

The practice phone number listed in the NPPES registry for James Walker is (225) 757-4080.

Does James Walker accept Medicare?

James Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is James Walker's NPI active?

Yes — James Walker's NPI (1578581617) is active in the NPPES registry as of the last update on 2024-02-05.

IndividualActiveAccepts Medicare

James Walker, M.D., PH.D.

NPI 1578581617 · Pulmonary Disease Physician · Baton Rouge, LA

Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)

James Walker, M.D., PH.D. is a Pulmonary Disease Physician provider in Baton Rouge, LA (NPI 1578581617).

Provider details

NPI number: 1578581617
Entity type: Individual
Primary specialty: Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
Credential: M.D., PH.D.
Sex: Male
Sole proprietor: No
License: 308314 (LA)

Specialties & taxonomies

Pulmonary Disease PhysicianPrimary207RP1001XLicense 308314 (LA)
Allopathic & Osteopathic Physicians
Critical Care Medicine (Internal Medicine) Physician207RC0200XLicense 308314 (LA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(80/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
19 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
3 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
590 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233	162	$111
Critical Care, First 30-74 Minutes99291	151	$202
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	76	$74
Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060	58	$9
Test to Determine Lung Volumes Using Sensors94726	58	$11
Test to Examine How Well the Lungs Exchange Gases94729	57	$8

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$68 across 2 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Practice location

Lsu Health Sciences Center

5246 Brittany Drive

Baton Rouge, LA 70808

Phone: (225) 757-4080

Fax: (225) 757-4100

Approximate (ZIP-level) locationGet directions

More LA providers

Mailing address

Lsu Medical Education Center