Dr. William M. Lennarz
- Gender: Male
- Sole propriator: No
- NPI: 1942223797
Dr. William M. Lennarz MD
Pediatrician
He is located at 1315 Jefferson Highway in New Orleans, LA 70121. Can help patients with the following: Bee and Wasp Stings, Birth Defects, Bronchitis, Childhood Obesity, Sinusitis, Urinary Tract Infection (UTI). His National Provider Identifier (NPI) number is 1942223797. Appointment can be made via the phone number (504) 842-3900. He also has a website where you can get more information. The website can be found at https://www.ochsner.org/doctors/william-lennarz. He is affiliated with 2 practices.
Conditions treated
Dr. William M. Lennarz, being an pediatrician, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. William M. Lennarz.
- Abdominal Pain
- Allergic Reaction
- Anemia
- Anencephaly
- Asthma
- Autism
- Bee and Wasp Stings
- Birth Defects
- Bronchitis
- Cerebral Palsy (CP)
- Childhood Behavioral and Emotional Disorders
- Childhood Obesity
- Chronic Cough
- Cleft Palate and Cleft Lip
- Colic
- Common Cold
- Croup
- Developmental Delays
- Down Syndrome
- Dyslexia
- Eczema
- Edwards Syndrome
- Enuresis
- Fetal Alcohol Syndrome (FAS)
- Fever
- Food Poisoning
- Fragile X Syndrome (FXS)
- General Care
- Hay Fever
- Head Lice
- Headache
- Hives
- Infant Care
- Influenza
- Jaundice
- Kawasaki Disease
- Learning Disability
- Migraine
- Muscular Dystrophy
- Nausea and Vomiting
- Noonan Syndrome
- Parenting
- Pervasive Developmental Disorders (PDD)
- Phenylketonuria (PKU)
- Pinworm Infection
- Prescription Refill
- Reye Syndrome
- Rickets
- Sinusitis
- Skin Rash
- Sore Throat
- Speech Disorders
- Stuttering
- Sudden Infant Death Syndrome (SIDS)
- Tourette Syndrome
- Turner Syndrome
- Upper Respiratory Infection (URI)
- Urinary Tract Infection (UTI)
- Williams Syndrome
- Wilson-Turner Syndrome
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. William M. Lennarz as in-network for the following 2026 plans.
Health plans
CHRISTUS Health Plan
Network data as of Jan 1, 1900, as reported by the insurer.
Show all 15 plans from CHRISTUS Health Plan
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| CHRISTUS Bronze Essential | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Bronze Essential Plus | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Gold | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Gold Essential | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Gold Essential Plus | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Gold Plus | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Silver Essential | HMO · Silver | Preferred | Accepting new patients |
| CHRISTUS Silver Essential Plus | HMO · Silver | Preferred | Accepting new patients |
| CHRISTUS Standard Expanded Bronze | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Standard Gold | HMO · Gold | Preferred | Accepting new patients |
| CHRISTUS Standard Silver | HMO · Silver | Preferred | Accepting new patients |
| CHRISTUS Value Bronze | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Value Bronze Plus | HMO · Expanded Bronze | Preferred | Accepting new patients |
| CHRISTUS Value Silver | HMO · Silver | Preferred | Accepting new patients |
| CHRISTUS Value Silver Plus | HMO · Silver | Preferred | Accepting new patients |
HMO Louisiana
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 26 plans from HMO Louisiana
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Connect 80/60 $3200 with 2 $0 PCP Virtual Visits (L) | POS · Silver | Not Applicable | Accepting new patients |
| Blue Connect 80/60 $3200 with 2 $0 PCP Virtual Visits (N) | POS · Silver | Not Applicable | Accepting new patients |
| Blue Connect 80/60 $3200 with 2 $0 PCP Virtual Visits (S) | POS · Silver | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 50/50 $7500 Standardized (H) HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 50/50 $7500 Standardized (L) HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 50/50 $7500 Standardized (N) HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 50/50 $7500 Standardized (S) HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 60/40 $6000 Standardized (L) | POS · Silver | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 60/40 $6000 Standardized (N) | POS · Silver | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 60/40 $6000 Standardized (S) | POS · Silver | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 75/55 $2000 Standardized (H) | POS · Gold | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 75/55 $2000 Standardized (L) | POS · Gold | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 75/55 $2000 Standardized (N) | POS · Gold | Not Applicable | Accepting new patients |
| Blue Connect Copay (PCP) 75/55 $2000 Standardized (S) | POS · Gold | Not Applicable | Accepting new patients |
| Blue POS 60/40 $6500 with 2 $0 PCP Virtual Visits HSA Eligible | POS · Bronze | Not Applicable | Accepting new patients |
| Blue POS 80/60 $3200 with 2 $0 PCP Virtual Visits | POS · Silver | Not Applicable | Accepting new patients |
| Blue POS 90/70 $9900 with 2 $0 PCP Virtual Visits HSA Eligible | POS · Bronze | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 50/50 $7500 Standardized HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 60/40 $6000 Standardized | POS · Silver | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 75/55 $2000 Standardized | POS · Gold | Not Applicable | Accepting new patients |
| Blue POS Copay (PCP) 80/60 $1000 with 2 $0 PCP Virtual Visits | POS · Gold | Not Applicable | Accepting new patients |
| Community Blue 80/60 $3200 with 2 $0 PCP Virtual Visits | POS · Silver | Not Applicable | Accepting new patients |
| Community Blue 90/70 $9900 with 2 $0 PCP Virtual Visits HSA Eligible | POS · Bronze | Not Applicable | Accepting new patients |
| Community Blue Copay (PCP) 50/50 $7500 Standardized HSA Eligible | POS · Expanded Bronze | Not Applicable | Accepting new patients |
| Community Blue Copay (PCP) 60/40 $6000 Standardized | POS · Silver | Not Applicable | Accepting new patients |
| Community Blue Copay (PCP) 75/55 $2000 Standardized | POS · Gold | Not Applicable | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. William M. Lennarz is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. William M. Lennarz is enrolled to bill Medicare as a Practitioner - Pediatric Medicine .
Bills through: Ochsner Clinic Llc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Other ways to reach out
- Website: https://www.ochsner.org/doctors/william-lennarz
Looking for more Pediatricians?
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- Address: 1514 Jefferson Hwy. New Orleans, 70121, LA
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- Address: 1514 Jefferson Highway New Orleans, 70121, LA
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- Address: Ochsner Medical Center, Pediatric Surgery 1514 Jefferson Highway New Orleans, 70121, LA
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- Address: 1315 Jefferson Hwy New Orleans, 70121, LA
- Gender: Female
- Address: 1514 Jefferson Highway New Orleans, 70121, LA
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Questions & Answers
Does Dr. William M. Lennarz have affiliation with practices?
Dr. William M. Lennarz is affiliated with Pathway Healthcare-Louisiana. For the full list of practices see this list.
Does Dr. William M. Lennarz accept patients with CHRISTUS Health Plan?
Yes, Dr. William M. Lennarz is listed in-network for CHRISTUS Health Plan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. William M. Lennarz treat?
Dr. William M. Lennarz provides treatment for Bee and Wasp Stings, Birth Defects, Bronchitis, Childhood Obesity, Sinusitis, Urinary Tract Infection (UTI). For the full list see this list.
Where can you meet with Dr. William M. Lennarz?
Dr. William M. Lennarz's office is located at 1315 Jefferson Highway in New Orleans, LA 70121.