Dr. Markus Brian Quinn, MD
- Industry payments
- $1,519
- Insurance carriers
- 9
- State license
- 1
- Year NPI issued
- 2016
- Practice address
- 3833 Worsham Ave, Long Beach, CA 90808
- Practice phone
- Call (562) 595-5421
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Long Beach Gastroenterology Associates
Long Beach, California
Find Dr. Quinn's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Markus Brian Quinn is a pediatrician in Long Beach, California
Dr. Quinn practices at Long Beach Gastroenterology Associates in Long Beach, California.
Dr. Quinn's NPI, 1760832018, was assigned on June 17, 2016. Dr. Quinn graduated from SUNY Downstate Health Sciences University in 2014. Dr. Quinn holds California license 143033.
- NPI
- 1760832018NPI Registry (opens in a new tab)
- NPI enumeration date
- June 17, 2016
- NPI status
- Active
- Practice phone
- (562) 595-5421
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Markus Brian Quinn practices at Long Beach Gastroenterology Associates in Long Beach, California
Dr. Quinn's primary practice is Long Beach Gastroenterology Associates, at 3833 Worsham Ave, Long Beach, CA 90808 in Los Angeles County. The practice phone is (562) 595-5421.
- Long Beach Gastroenterology Associates3833 Worsham Ave, Long Beach, CA 90808 · Los Angeles CountyPhone(562) 595-5421
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Markus Brian Quinn is affiliated with 1 site of care
Dr. Quinn's primary practice is Long Beach Gastroenterology Associates in Long Beach, California.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Markus Brian Quinn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Quinn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Long Beach Gastroenterology Associates | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Markus Brian Quinn is one of 8,236 pediatricians in California
Pediatrics is Dr. Quinn's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Quinn is board certified in pediatrics by the American Board of Pediatrics. Dr. Quinn is licensed in California.
Specialties and state licenses
- Pediatrics, CaliforniaPrimary
Pediatricians near Dr. Quinn
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Markus Brian Quinn's patients have a median age of 7
Across all payers, Dmand AI patient panel data puts Dr. Quinn's median patient age at 7, with 33% women.
Dr. Quinn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 7
Patient panel by sex, all payers
- Women33%
- Men66%
Source: Dmand AI Patient Panel Data
Dr. Markus Brian Quinn received $1,519 in industry payments from 2017 to 2025
CMS Open Payments shows 73 general payments to Dr. Quinn from 16 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $507.
General payments to Dr. Quinn by program year, 2017 to 2025
Companies that paid Dr. Quinn the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Markus Brian Quinn graduated from SUNY Downstate Health Sciences University
Dr. Quinn graduated from SUNY Downstate Health Sciences University in 2014.
- Medical school
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Markus Brian Quinn accepts plans from 9 insurance carriers
Dr. Quinn is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- +1 more carriersWith a free account
Plan types Dr. Quinn accepts, by number of carriers
- Medicare7
- PPO7
- HMO5
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Markus Brian Quinn's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Markus Brian Quinn
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Markus Brian Quinn's NPI number?
Dr. Markus Brian Quinn's NPI number is 1760832018. It was assigned on June 17, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Markus Brian Quinn?
Dr. Markus Brian Quinn is a pediatrician in Long Beach, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Markus Brian Quinn practice?
Dr. Quinn practices at 3833 Worsham Ave, Long Beach, CA 90808. Dr. Quinn's primary practice is Long Beach Gastroenterology Associates in Long Beach, California.
What is Dr. Markus Brian Quinn's office phone number?
The practice phone on file for Dr. Quinn is (562) 595-5421.
What is Dr. Markus Brian Quinn's medical license number?
Dr. Quinn holds California license 143033.
Is Dr. Markus Brian Quinn board certified?
Yes. Dr. Quinn is board certified in pediatrics by the American Board of Pediatrics.
Where did Dr. Markus Brian Quinn go to medical school?
Dr. Quinn graduated from SUNY Downstate Health Sciences University in 2014.
Has Dr. Markus Brian Quinn received payments from drug or device companies?
CMS Open Payments shows $1,519 in general payments to Dr. Quinn from 16 companies from 2017 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Markus Brian Quinn been practicing?
Dr. Quinn graduated from medical school in 2014, 12 years ago.
What insurance does Dr. Markus Brian Quinn accept?
Dr. Quinn is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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