Elizabeth A. Posek
- Gender: Female
- Experience: 9 years
- Sole propriator: No
- NPI: 1386084960
Elizabeth A. Posek RD
Dietitian
She is located at 3141 North 3rd Avenue in Phoenix, AZ 85013. Can help patients with the following: Binge Eating Disorder, High Blood Pressure, Irritable Bowel Syndrome (IBS), Nutrition Planning, Pregnancy Nutrition, Weight Gain. Her National Provider Identifier (NPI) number is 1386084960. Appointment can be made via the phone number (602) 914-1520.
Conditions treated
Elizabeth Ann Posek, being an dietitian, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Elizabeth A. Posek.
- Abdominal Pain
- Anemia
- Anorexia Nervosa
- Beriberi
- Binge Eating Disorder
- Bulimia Nervosa
- Celiac Disease
- Childhood Obesity
- Constipation
- Crohn's Disease
- Diabetes
- Diabetes Mellitus (DM) Type 2
- Diverticulosis
- Eating Disorder
- Fatty Liver Disease
- Feeding Tube
- Food Allergies
- Food Allergy
- Food Sensitivities
- Gastric Bypass Surgery
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Malnutrition
- Medical Nutrition Therapy
- Metabolic Detoxing
- Nutrition Planning
- Obesity
- Pediatric Nutrition
- Pregnancy Nutrition
- Sports Nutrition
- Teenage Nutrition
- Weight Gain
- Weight Loss
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Elizabeth A. Posek as in-network for the following 2026 plans.
Health plans
Blue Cross Blue Shield of Arizona
Network data as of Jun 29, 2026, as reported by the insurer.
Show all 11 plans from Blue Cross Blue Shield of Arizona
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| AZ Blue AdvanceHealth Bronze Focus (4 Free PCP Visits) (5 plan variants) | HMO · Expanded Bronze | Focus | Accepting new patients |
| AZ Blue AdvanceHealth Gold Focus (4 Free PCP Visits) (5 plan variants) | HMO · Gold | Focus | Accepting new patients |
| AZ Blue AdvanceHealth Silver Focus (4 Free PCP Visits) (5 plan variants) | HMO · Silver | Focus | Accepting new patients |
| AZ Blue EverydayHealth Gold Focus (1 Free PCP Visit) (3 plan variants) | HMO · Gold | Focus | Accepting new patients |
| AZ Blue EverydayHealth Prosano Gold ($0 Prosano Health Visits) (2 plan variants) | HMO · Gold | Focus Prosano | Accepting new patients |
| AZ Blue EverydayHealth Prosano Silver ($0 Prosano Health Visits) (2 plan variants) | HMO · Silver | Focus Prosano | Accepting new patients |
| AZ Blue EverydayHealth Silver Focus (1 Free PCP Visit) (3 plan variants) | HMO · Silver | Focus | Accepting new patients |
| AZ Blue Portfolio Bronze HSA Focus (5 plan variants) | HMO · Expanded Bronze | Focus | Accepting new patients |
| AZ Blue StandardHealth Bronze Focus (5 plan variants) | HMO · Expanded Bronze | Focus | Accepting new patients |
| AZ Blue StandardHealth Gold Focus (5 plan variants) | HMO · Gold | Focus | Accepting new patients |
| AZ Blue StandardHealth Silver Focus (5 plan variants) | HMO · Silver | Focus | Accepting new patients |
Oscar Health Plan, Inc.
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 17 plans from Oscar Health Plan, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic Standard | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver Plus | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Breathe Easy with Enhanced COPD Benefits | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Chronic Care CKM | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Buena Salud Bronce Simple Para Diabetes | HMO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic | HMO · Gold | Preferred | Accepting new patients |
| Gold Classic Standard | HMO · Gold | Preferred | Accepting new patients |
| Gold Simple | HMO · Gold | Preferred | Accepting new patients |
| Gold Simple Diabetes | HMO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard | HMO · Silver | Preferred | Accepting new patients |
| Silver Elite Saver Plus | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Chronic Care CKM | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Specialist Saver with COPD | HMO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | HMO · Silver | Preferred | 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 Elizabeth A. Posek 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
Elizabeth A. Posek is enrolled to bill Medicare as a Practitioner - Registered Dietitian Or Nutrition Professional .
Bills through: Phoenix Children's Hospital
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.
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- Address: Suite 600 500 West Thomas Road Phoenix, 85013, AZ
- Gender: Female
- Address: Suite 600 500 West Thomas Road Phoenix, 85013, AZ
Questions & Answers
Where can you meet with Elizabeth Ann Posek?
Elizabeth Ann Posek's office is located at 3141 North 3rd Avenue in Phoenix, AZ 85013.
What conditions does Elizabeth Ann Posek treat?
Elizabeth Ann Posek provides treatment for Binge Eating Disorder, High Blood Pressure, Irritable Bowel Syndrome (IBS), Nutrition Planning, Pregnancy Nutrition, Weight Gain. For the full list see this list.
Does Elizabeth Ann Posek accept insurance?
Elizabeth Ann Posek is listed in-network for 28 ACA Marketplace (Obamacare/HealthCare.gov) plans from Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc.. See the Marketplace plans section for details.