Amitabha Mazumder, M.D.

Hematology & Oncology

Internal Medicine

(562) 869-1201Downey, CA
Telehealth Available
NPI Active per CMS — Q2 2026

Amitabha Mazumder, M.D. has been part of the Downey medical community since 2005 in group practice. He graduated from Johns Hopkins University School of Medicine in 1977 and has 49+ years of clinical experience. Among his Medicare patients, common conditions include high cholesterol, hypertension, and arthritis (per CMS data).

1 of 796 Internal Medicine providers in CASee all Internal Medicine in Downey49+ years experienceNPI since 2005

Older · 2822dNPPES updated 2018-08-14 · verify on CMS

Contact & Location

Practice Location

11480 Brookshire Ave Ste 309, Downey, CA 90241

Fax: (562) 869-1281
Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Hypertension
74%

High blood pressure — a leading risk factor for heart disease and stroke

Arthritis
61%

Joint inflammation causing pain, swelling, and stiffness

Cancer
47%

Diseases involving abnormal cell growth with potential to spread to other body parts

Diabetes
43%

A condition where the body cannot properly regulate blood sugar levels

Anxiety Disorders
25%

Excessive worry or fear that interferes with daily life

Osteoporosis
23%

Weakened bones that are more prone to fractures, common in older adults

Chronic Kidney Disease
21%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

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

Career Journey
  1. Graduated medical school · 1977

    Johns Hopkins University School of Medicine

  2. 49 years in practice

    Senior practitioner

Internal MedicineHematology & Oncology in DowneyAllopathic & Osteopathic Physicians

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Taxonomy: 207RH0003X

Education & Training

Johns Hopkins University School of Medicine (Class of 1977)

Practice Footprint

Mailing address

18000 Studebaker Rd Ste 800, Cerritos, CA 90703-2671

Differs from practice location

Virtual Hematology & Oncology Care With Amitabha Mazumder

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

Schedule a virtual visit with Amitabha Mazumder for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Downey required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Amitabha Mazumder

NPI records show Dr. Mazumder as active with telehealth listed in Downey, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (562) 869-1201.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. 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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