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Dr. Willard Warren Mosier Jr., MD
NPI1487996245PAC ID6305124215
- Medicare services, 2024
- 200
- Medicare patients, 2024
- 107
- Part D claims, 2016
- 12
- Publications
- 2
- Hospital affiliations
- 5
- Practice address
- 1214 Coolidge Avenue, Lafayette, LA 70503
- Practice phone
- Call (337) 289-7991
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mosier's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Willard Warren Mosier Jr. is a general surgeon in Lafayette, Louisiana
Dr. Mosier practices at Ochsner Lafayette General Medical Center in Lafayette, Louisiana, part of Ochsner Health System.
Dr. Mosier's NPI, 1487996245, was assigned on March 20, 2013. Dr. Mosier graduated from Louisiana State University School of Medicine in New Orleans in 2013. Dr. Mosier holds Louisiana license 310869.
NPI and contact details
- NPI
- 1487996245NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305124215
- NPI enumeration date
- March 20, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (337) 289-7991
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Willard Warren Mosier Jr. practices at Ochsner Lafayette General Medical Center in Lafayette, Louisiana
Dr. Mosier's primary practice is Ochsner Lafayette General Medical Center, at 1214 Coolidge Avenue, Lafayette, LA 70503 in Lafayette Parish. The practice phone is (337) 289-7991.
- Ochsner Lafayette General Medical Center1214 Coolidge Avenue, Lafayette, LA 70503 · Lafayette ParishPhone(337) 289-7991
Source: Dmand AI Affiliation Data
Dr. Willard Warren Mosier Jr. is affiliated with 5 sites of care and 2 medical groups
Dr. Mosier's primary practice is Ochsner Lafayette General Medical Center in Lafayette, Louisiana, part of Ochsner Health System. Dr. Mosier is also affiliated with Lake Charles Memorial Hospital. The medical group on file is Family Health Plaza. Dmand AI also links Dr. Mosier to 3 more hospitals and 1 medical group, each named with a free account.
Lake Charles Memorial HospitalFamily Health Plaza3 hospitalsNames with a free account1 medical groupName with a free account
See all 7 affiliations for Dr. MosierSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Willard Warren Mosier Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mosier practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ochsner Lafayette General Medical Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Willard Warren Mosier Jr. is one of 377 general surgeons in Louisiana
Surgery is Dr. Mosier's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Mosier is licensed in Louisiana.
Specialties and state licenses
- Surgery, LouisianaPrimary
General surgeons near Dr. Mosier
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
377general surgeons in Louisiana23general surgeons in Lafayette9general surgeons at Ochsner Lafayette General Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Willard Warren Mosier Jr. billed Medicare for 200 services in 2024
CMS data shows 200 Medicare services from Dr. Mosier across 3 procedure codes in 2024, for 107 Medicare patients. Medicare paid $26,850 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024200
Medicare patients107
Paid by Medicare$26,850
Procedure codes3
Dr. Mosier's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3272024: 20039%
Dr. Mosier compared with the Louisiana median for general surgeons, 2024
- Dr. Mosier
- Louisiana median
- Medicare services
- 200vs 14439% above
- Medicare patients
- 107vs 109Close to median
- Part D claims
- 12vs 4774% below
Medians across 364 general surgeons in Louisiana with Dmand AI profiles that report each measure.
Dr. Mosier's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Mosier?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mosier and other general surgeons in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Willard Warren Mosier Jr. treated 107 Medicare patients in 2024, average age 76
CMS counts 107 Medicare patients who saw Dr. Mosier in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.01, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mosier's median patient age at 54, with 45% women.
Medicare patients, 2024107
Average age76
Average risk score2.01
Also on Medicaid28%
Dr. Mosier's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mosier's Medicare patients by sex, 2024
- Women5249%
- Men5551%
Chronic conditions among Dr. Mosier's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA56%
- Arthritis54%
- Diabetes45%
- Ischemic heart disease43%
- Depression42%
- Mood disorders42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mosier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Willard Warren Mosier Jr. wrote 12 Medicare Part D claims in 2016
In 2016, Dr. Mosier wrote 12 Medicare Part D claims. They cover 1 drug, with $107 in total drug cost.
Part D claims, 201612
Drugs named by CMS1
Total drug cost$107
Dr. Mosier's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Willard Warren Mosier Jr. offers telehealth to Medicare patients
Dr. Mosier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mosier as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Willard Warren Mosier Jr. has 2 publications on record
Dmand AI links 2 papers to Dr. Mosier, published from 2020 to 2022. Dr. Mosier has published most often in Am Surg. Dr. Mosier's most frequent co-authors are Lance Eugene Stuke, MD, Alexander Carl Cavalea, MD and Wajeeh Irfan, MD.
Papers2
Years published2020 to 2022
Dr. Mosier's most frequent co-authors
- Lance Eugene Stuke, MD2 shared papers
- Alexander Carl Cavalea, MD1 shared paper
- Wajeeh Irfan, MD1 shared paper
Recent publications by Dr. Mosier
Air AmbulancesGlasgow Coma ScaleInjury Severity Score
See who Dr. Mosier researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mosier works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Willard Warren Mosier Jr. received $5,461 in industry payments from 2019 to 2025
CMS Open Payments shows 31 general payments to Dr. Mosier from 6 drug and device companies from 2019 to 2025. Travel and lodging make up the largest share, 88% of the total. Zimmer Biomet Holdings, Inc. paid the most, $5,303.
General payments to Dr. Mosier by program year, 2019 to 2025
General payments to Dr. Mosier by kind, 2019 to 2025
$5.5Kin total
- Travel and lodging$4,80388%
- Food and beverage$65812%
Companies that paid Dr. Mosier the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Willard Warren Mosier Jr. graduated from Louisiana State University School of Medicine in New Orleans
Dr. Mosier graduated from Louisiana State University School of Medicine in New Orleans in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Willard Warren Mosier Jr.'s profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Willard Warren Mosier Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Willard Warren Mosier Jr.'s NPI number?
Dr. Willard Warren Mosier Jr.'s NPI number is 1487996245. It was assigned on March 20, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Willard Warren Mosier Jr.?
Dr. Willard Warren Mosier Jr. is a general surgeon in Lafayette, Louisiana. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Willard Warren Mosier Jr. practice?
Dr. Mosier practices at 1214 Coolidge Avenue, Lafayette, LA 70503. Dr. Mosier's primary practice is Ochsner Lafayette General Medical Center in Lafayette, Louisiana, part of Ochsner Health System. Dmand AI also links Dr. Mosier to 3 hospitals and 1 medical group.
What is Dr. Willard Warren Mosier Jr.'s office phone number?
The practice phone on file for Dr. Mosier is (337) 289-7991.
What is Dr. Willard Warren Mosier Jr.'s medical license number?
Dr. Mosier holds Louisiana license 310869.
Which hospitals is Dr. Willard Warren Mosier Jr. affiliated with?
Dr. Mosier practices at Ochsner Lafayette General Medical Center in Lafayette, Louisiana. Dr. Mosier is also affiliated with Lake Charles Memorial Hospital. Dmand AI links Dr. Mosier to 3 more hospitals.
What medical group is Dr. Willard Warren Mosier Jr. part of?
Dr. Mosier is linked to Family Health Plaza. Dmand AI links Dr. Mosier to 1 more medical group.
Does Dr. Willard Warren Mosier Jr. accept Medicare?
Yes. CMS data shows Dr. Mosier billed Medicare for 200 services in 2024, and Dr. Mosier accepts Medicare assignment.
Does Dr. Willard Warren Mosier Jr. offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mosier as offering telehealth services.
How many Medicare patients does Dr. Willard Warren Mosier Jr. see?
CMS counts 107 Medicare patients who saw Dr. Mosier in 2024, with an average age of 76.
Show 7 more questionsShow fewer questions
What services does Dr. Willard Warren Mosier Jr. bill to Medicare?
In 2024, Dr. Mosier's most billed Medicare services were critical care (99291), hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Willard Warren Mosier Jr. go to medical school?
Dr. Mosier graduated from Louisiana State University School of Medicine in New Orleans in 2013.
What drugs does Dr. Willard Warren Mosier Jr. prescribe most?
In 2016 Medicare Part D data, Dr. Mosier's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Willard Warren Mosier Jr. received payments from drug or device companies?
CMS Open Payments shows $5,461 in general payments to Dr. Mosier from 6 companies from 2019 to 2025. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Willard Warren Mosier Jr. been practicing?
Dr. Mosier graduated from medical school in 2013, 13 years ago.
Does Dr. Willard Warren Mosier Jr. do research?
Dmand AI links 2 publications to Dr. Mosier, published from 2020 to 2022.
Who does Dr. Willard Warren Mosier Jr. publish with?
Dr. Mosier's most frequent co-authors are Lance Eugene Stuke, MD (2 shared papers), Alexander Carl Cavalea, MD (1 shared paper) and Wajeeh Irfan, MD (1 shared paper).
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