Dr. Walter J. Nieri
- Gender: Male
- Experience: 53 years
- Graduation year: 1968
- Sole propriator: No
- NPI: 1265488258
Dr. Walter J. Nieri M.D.
Geriatrician
He is located at 6510 North 27th Street in Phoenix, AZ 85016. Can help patients with the following: Arthritis, Fatigue, Fecal Incontinence, Heart Disease, Hot Flashes, Osteoporosis. His National Provider Identifier (NPI) number is 1265488258. Appointment can be made via the phone number (602) 885-1988. He is affiliated with 1 practices.
Conditions treated
Dr. Walter John Nieri, being an geriatrician, 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. Walter J. Nieri.
- Abdominal Pain
- Acute Pain
- Aging In Place
- Alzheimer's Disease
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Balance Issues
- Bladder Control
- Bone Loss
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cognitive Decline
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fatigue
- Fecal Incontinence
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hip Bursitis
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Low Back Pain
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Progressive Neurological Disorders
- Urethritis
- Urinary Tract Infection (UTI)
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Walter J. Nieri as in-network for the following 2026 plans.
Health plans
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 Dr. Walter J. Nieri 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. Walter J. Nieri is enrolled to bill Medicare as a Practitioner - Internal Medicine (also registered under: Practitioner - Geriatric Medicine) .
Bills through: Banner Alzheimers Institute
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.
Payments received
Drug payment
| Lundbeck | $112 |
| Acadia Pharmaceuticals | $88 |
| Novartis | $16 |
Other
| Food and Beverage | $218 |
Studies
Graduated in 1968Additional Specialities
- Internist
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Questions & Answers
Does Dr. Walter John Nieri have affiliation with practices?
Dr. Walter John Nieri is affiliated with Banner Sun City Medical Group.
Does Dr. Walter John Nieri accept insurance?
Dr. Walter John Nieri is listed in-network for 17 ACA Marketplace (Obamacare/HealthCare.gov) plans from Oscar Health Plan, Inc.. See the Marketplace plans section for details.
Where can you meet with Dr. Walter John Nieri?
Dr. Walter John Nieri's office is located at 6510 North 27th Street in Phoenix, AZ 85016.
What conditions does Dr. Walter John Nieri treat?
Dr. Walter John Nieri provides treatment for Arthritis, Fatigue, Fecal Incontinence, Heart Disease, Hot Flashes, Osteoporosis. For the full list see this list.