Gunter Klaus Rieg, M.D.

Infectious Disease Internal Medicine

Internal Medicine

Gunter Klaus Rieg is an Infectious Disease Internal Medicine specialist based in Long Beach, CA with over 33 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: INFECTIOUS DISEASE

(562) 599-8601Long Beach, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Gunter Klaus Rieg, M.D. has practiced internal medicine for 33+ years, working in group practice. He has been practicing since 2006 — over 33 years. Infectious disease specialists diagnose and treat complex infections including HIV/AIDS, hepatitis, tuberculosis, and more.

At a glance

  • Prescribes opioids less than 26% of reporting doctors in California
  • Virtual visits available — no app or travel required
1 of 284 Internal Medicine providers in CASee all Internal Medicine in Long Beach33+ years experienceNPI since 2006

Older · 1630dNPPES updated 2021-12-06 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

1333 Chestnut Ave, Long Beach, CA 90813-2944

Fax: (562) 218-0853
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor prescribes opioid pain medications conservatively.

Opioid Rx

↓ Lower = better

3.81%

California avg: 5.2 · US avg: 5.1

Higher than most doctors nationally(-1.3 pts)

3.81% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Prescription Recipients

140

Patients prescribed

Prescriptions Written

682

Total claims

Total Medicare drug cost: $824k

Percentile rankings compared against 9,360 reporting peers in California.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. 33 years in practice

    Senior practitioner

Internal MedicineInfectious Disease in Long BeachAllopathic & Osteopathic Physicians

Infectious disease specialists diagnose and treat complex infections including HIV/AIDS, hepatitis, tuberculosis, antibiotic-resistant infections (MRSA), post-surgical infections, and travel-related illnesses. They also provide pre-travel vaccination counseling and manage infections in immunocompromised patients.

Taxonomy: 207RI0200X

Practice Footprint

Mailing address

1000 W Carson St N-25; #471, Torrance, CA 90502-2004

Differs from practice location

Virtual Infectious Disease Care With Gunter Klaus Rieg

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Gunter Klaus Rieg for follow-ups, medication reviews, and ongoing care — no travel to Long Beach required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Gunter Klaus Rieg

NPI records show Dr. Rieg as active with telehealth listed in Long Beach, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (562) 599-8601.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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