Johanna Lynn Rosenthal, M.D.

Neurology Psychiatry & Neurology

Johanna Lynn Rosenthal is a Neurology Psychiatry & Neurology specialist based in Fullerton, CA with over 48 years of clinical experience. Offers virtual telehealth visits.

(714) 213-0492Fullerton, CA
Telehealth Available
NPI Active per CMS — Q2 2026

Johanna Lynn Rosenthal, M.D. has been part of the Fullerton medical community since 2007 in group practice. Trained at George Washington University School of Medicine (class of 1978), she has been practicing for over 48 years. Among her Medicare patients, common conditions include hypertension, high cholesterol, and stroke (per CMS data).

1 of 884 Psychiatry & Neurology providers in CASee all Psychiatry & Neurology in Fullerton48+ years experienceNPI since 2007

Older · 2979dNPPES updated 2018-03-28 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

1440 N Harbor Blvd Ste 900, Fullerton, CA 92835-4122

Fax: (714) 870-0002
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 Hypertension, High Cholesterol, and Stroke / TIA.

Hypertension
Higher than avg (+5%)75%

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

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Stroke / TIA
Higher than avg (+56%)69%

Disrupted blood supply to the brain, requiring urgent medical attention

US avg: 13.4%

↑ More patients than average (+56%) — a focus area for this doctor

Diabetes
Higher than avg (+17%)51%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↑ More patients than average (+17%) — a focus area for this doctor

Arthritis
Lower than avg (-1%)48%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-1%) — less common here

Heart Failure
Higher than avg (+19%)41%

The heart cannot pump blood efficiently enough to meet the body's needs

US avg: 22.5%

↑ More patients than average (+19%) — a focus area for this doctor

Mood Disorders
40%

Conditions affecting emotional state, including depression and bipolar disorder

Chronic Kidney Disease
Higher than avg (+4%)34%

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

US avg: 29.6%

↑ More patients than average (+4%) — a focus area for this doctor

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 · 1978

    George Washington University School of Medicine

  2. 48 years in practice

    Senior practitioner

Psychiatry & NeurologyAllopathic & Osteopathic Physicians

Neurologists diagnose and treat disorders of the nervous system including stroke, epilepsy, multiple sclerosis, Parkinson's disease, migraines, neuropathy, and dementia.

Taxonomy: 2084N0400X

Education & Training

George Washington University School of Medicine (Class of 1978)

Virtual Psychiatry & Neurology Care With Johanna Lynn Rosenthal

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

Schedule a virtual visit with Johanna Lynn Rosenthal for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Fullerton required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Johanna Lynn Rosenthal

Dr. Rosenthal is listed as active in the NPI registry with telehealth listed in Fullerton, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (714) 213-0492.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · 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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