Donald B. Longjohn, M.D.

Adult Reconstructive Orthopaedic Surgery

Orthopaedic Surgery

Donald B. Longjohn is an Adult Reconstructive Orthopaedic Surgery specialist based in Los Angeles, CA with over 36 years of clinical experience. Offers virtual telehealth visits.

(323) 442-5860Los Angeles, CA
Telehealth Available
NPI Active per CMS — Q2 2026

Donald B. Longjohn, M.D. practices as part of a group adult reconstructive orthopaedic surgery specialist practice in Los Angeles, CA. Trained at University of Michigan Medical School (class of 1990), he has been practicing for over 36 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and arthritis.

1 of 30 Orthopaedic Surgery providers in CASee all Orthopaedic Surgery in Los Angeles36+ years experienceNPI since 2006

Older · 910dNPPES updated 2023-11-27 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

1520 San Pablo St #2000, Los Angeles, CA 90033-5310

Fax: (323) 442-6990
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 Arthritis.

Hypertension
75%

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

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Arthritis
75%

Joint inflammation causing pain, swelling, and stiffness

Diabetes
41%

A condition where the body cannot properly regulate blood sugar levels

Chronic Kidney Disease
29%

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

Ischemic Heart Disease
29%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Mood Disorders
29%

Conditions affecting emotional state, including depression and bipolar disorder

Osteoporosis
28%

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

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 · 1990

    University of Michigan Medical School

  2. Board certified · Sep 6, 2020

    Self-reported via NPPES

  3. 36 years in practice

    Senior practitioner

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, adult reconstructive orthopaedic surgeons deal with reconstructive procedures such as joint arthroplasty (i.e., hip and knee), osteotomy, arthroscopy, soft-tissue reconstruction, and a variety of other adult reconstructive surgical procedures.

Taxonomy: 207XS0114X

Education & Training

University of Michigan Medical School (Class of 1990)

Practice Footprint

Mailing address

Po Box 31309, Los Angeles, CA 90031-0309

Differs from practice location

Virtual Adult Reconstructive Orthopaedic Surgery Care With Donald B. Longjohn

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

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

Frequently Asked Questions

Common questions about Donald B. Longjohn

NPI records show Dr. Longjohn as active with telehealth listed in Los Angeles, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (323) 442-5860.

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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