Mark Janssen, MD
Healthcare provider · Irvine, California
Find prospects like Mark Janssen, MD
Get a list of similar companies, matched by industry, size and location, ready for outreach.
Free sample of 25 companies by email within one business day. No spam: we only use your email for this request.
Products & Services
About Mark Janssen, MD
Mark Janssen, MD is listed as a company classified under Offices of Physicians (except Mental Health Specialists), based in Irvine, California, United States, operating in Healthcare provider, employing 1-5 people and reporting $0M-$1M in annual revenue.
Its primary NAICS classification is 621111 (Offices of Physicians (except Mental Health Specialists)). Mark Janssen, MD is one of 637,970 Healthcare & Life Science companies listed in California.
Business Contact Information
- Phone
- +1 (949) 9325000
- Address
- 6640 Alton Pkwy, Irvine, California, 92618, United States
Industry & Classification
- Industry
- Healthcare & Life Science
- Sector
- Healthcare provider
NAICS Codes
- 62Health Care and Social Assistance
- 6211Offices of Physicians
- 621111Offices of Physicians (except Mental Health Specialists)
SIC Codes
- 80Health Services
- 801Offices And Clinics Of Doctors Of Medicine
- 8011Offices of Physicians, Mental Health Specialists
Company Details
- Employees
- 4 (1-5)
- Annual Revenue
- $124,000 ($0M-$1M)
Mark Janssen, MD: frequently asked questions
What does Mark Janssen, MD do?
Mark Janssen, MD is listed as a company classified under Offices of Physicians (except Mental Health Specialists), based in Irvine, California, United States, operating in Healthcare provider, employing 1-5 people and reporting $0M-$1M in annual revenue.
Where is Mark Janssen, MD located?
Mark Janssen, MD is headquartered at 6640 Alton Pkwy, Irvine, California, 92618, United States.
How many employees does Mark Janssen, MD have?
Mark Janssen, MD has about 4 employees (the 1-5 range).
What is Mark Janssen, MD's annual revenue?
Mark Janssen, MD's annual revenue is estimated at $124,000 (the $0M-$1M range).
What industry is Mark Janssen, MD in?
Mark Janssen, MD is in the Healthcare & Life Science / Healthcare provider industry, and its primary NAICS code is 621111 (Offices of Physicians (except Mental Health Specialists)).
How can I contact Mark Janssen, MD?
Its phone number is +1 (949) 9325000.
Largest companies in California
Largest healthcare & life science companies
Manufacturing sales in California, 2026
In California, Factur's 2026 study counted 98 manufacturing quotes worth $14.7M and 18 purchase orders over 12 months: 18% of quotes became orders, against 21% nationally. See the California data.
Own this business?
Keep your profile accurate — or ask us to take it down. We acknowledge requests within 7 days and resolve them within 30 days.
Prefer email? privacy@facturmfg.com
Add this badge to your website — show visitors you're listed on Factur Data.