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WILLARD WARREN MOSIER JR. M.D.
NPI 1487996245
Surgery - Trauma Surgery in Lafayette, LA

Active since March 20, 2013PECOS EnrolledAccepts Medicare Assignment
1214 COOLIDGE ST, LAFAYETTE, LA 70503(337) 289-8890 Get Directions Write a Review

NPPES record last updated: March 20, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 20, 2025, Jan 31, 2019 (2 updates tracked since 2019).

About Willard Warren Mosier Jr. M.d. NPPES

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

WILLARD WARREN MOSIER JR. M.D. (NPI 1487996245) is an individual trauma surgery provider in Lafayette, Louisiana, licensed in Louisiana (310869) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Ochsner Lafayette General Medical Center, and is a graduate of Louisiana State University School Of Medicine In New Orleans (2013).

NPPES Registry Identity

NPI1487996245
Entity TypeIndividualMale
Primary Taxonomy2086S0127X
Provider Legal NameWILLARD WARREN MOSIER JR.Credential: M.D.
Location Address1214 COOLIDGE STLafayette, LA 70503
Mailing Address302 Woodstone DrLafayette, LA 70508-8198 · (205) 529-9208
Phone(337) 289-8890
Sole ProprietorNo
Medical School CMSLouisiana State University School Of Medicine In New OrleansGraduated 2013
Enumeration DateMarch 20, 2013
Last NPPES UpdateMarch 20, 20252 updates tracked since enumeration
NPPES CertifiedMarch 20, 2025
✔ NPI 1487996245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0127X
License✔ Licensed in LA · 310869
Definition
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.
Also ListedSurgeryTaxonomy 208600000X · License 310869 (LA)
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 310869 (LA)
1214 COOLIDGE ST, Lafayette, LA 70503
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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.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Willard Warren Mosier Jr. M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6305124215
PECOS Enrollment IDI20181226001488
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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
110 services43 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
50 services42 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
40 services39 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ochsner Lafayette General Medical Center

Acute Care Hospitals · Lafayette, LA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190002
Location1214 Coolidge AvenueLafayette, LA 70503 · Lafayette County
Emergency services Birthing friendly

Opelousas General Health System

Acute Care Hospitals · Opelousas, LA
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number190017
Location539 East Prudhomme StreetOpelousas, LA 70570 · St. Landry County
Emergency services Birthing friendly

Acadia General Hospital

Acute Care Hospitals · Crowley, LA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190044
Location1305 Crowley Rayne HighwayCrowley, LA 70526 · Acadia County
Emergency services

Ochsner American Legion Hospital

Acute Care Hospitals · Jennings, LA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190053
Location1634 Elton RoadJennings, LA 70546 · Jeffrson Davis County
Emergency services Birthing friendly

Iberia Medical Center

Acute Care Hospitals · New Iberia, LA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190054
Location2315 E Main StreetNew Iberia, LA 70562 · Iberia County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 3

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

DR. SAMUEL FREDERIC SKINNER MD
Student in an Organized Health Care Education/Training Program
1214 COOLIDGE ST
LAFAYETTE, LA 70503
Lafayette Parish (337) 289-8150
KELSEY RYLANDS
Student in an Organized Health Care Education/Training Program
1214 COOLIDGE ST
LAFAYETTE, LA 70503
Lafayette Parish (337) 571-8540
RALPH MITCHELL HUNGERPILLER JR.
Student in an Organized Health Care Education/Training Program
1214 COOLIDGE ST
LAFAYETTE, LA 70503
Lafayette Parish (337) 571-8540

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 Willard Mosier's NPI number?

The NPI number for Willard Mosier is 1487996245. It was assigned to this individual provider in the NPPES registry on March 20, 2013.

Where is Willard Mosier located?

Willard Mosier practices at 1214 Coolidge St, Lafayette, LA 70503. The listed phone number is (337) 289-8890.

What is Willard Mosier's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Is Willard Mosier enrolled in Medicare?

Yes. Willard Mosier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Willard Mosier accept?

Health plans from Blue Cross and Blue Shield of Louisiana and HMO Louisiana list Willard Mosier 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.

Is Willard Mosier affiliated with any hospitals?

According to CMS data, Willard Mosier is affiliated with Ochsner Lafayette General Medical Center, Opelousas General Health System, Acadia General Hospital, Ochsner American Legion Hospital and Iberia Medical Center.

When was this NPI record last updated?

The NPPES record for Willard Mosier was last updated on March 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.