Dr. David Douglas Larson, MD
- Medicare patients, 2024
- 13
- Hospital affiliations
- 1
- Industry payments
- $454
- Medical groups
- 2
- Insurance carriers
- 2
- Practice address
- 2801 Atlantic Ave, Long Beach, CA 90806
- Practice phone
- Call (562) 933-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Larson'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. David Douglas Larson is an anesthesiologist in Long Beach, California
Dr. Larson practices at Long Beach Medical Center in Long Beach, California, part of MemorialCare Health System.
Dr. Larson's NPI, 1255444535, was assigned on August 17, 2006. Dr. Larson graduated from University Of Minnesota Medical School in 1982. Dr. Larson holds California license G55863.
- NPI
- 1255444535NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375726409
- NPI enumeration date
- August 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 933-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Douglas Larson practices at Long Beach Medical Center in Long Beach, California
Dr. Larson's primary practice is Long Beach Medical Center, at 2801 Atlantic Ave, Long Beach, CA 90806 in Los Angeles County. The practice phone is (562) 933-2000.
- Long Beach Medical Center2801 Atlantic Ave, Long Beach, CA 90806 · Los Angeles CountyPhone(562) 933-2000
Source: Dmand AI Affiliation Data
Dr. David Douglas Larson is affiliated with 2 sites of care and 2 medical groups
Dr. Larson's primary practice is Long Beach Medical Center in Long Beach, California, part of MemorialCare Health System. The medical group on file is CEP America. Dmand AI also links Dr. Larson to 1 more therapy and rehab clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Douglas Larson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Long Beach Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across MemorialCare Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David Douglas Larson is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Larson's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Larson is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Larson's licenses on file in 2 states: California and Washington.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Washington license
Anesthesiologists near Dr. Larson
Counts of anesthesiologists 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. David Douglas Larson treated 13 Medicare patients in 2024, average age 73
CMS counts 13 Medicare patients who saw Dr. Larson in 2024. The largest group is 85 and over, with 0 patients. 75% of them have high cholesterol. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Larson's median patient age at 34, with 100% women.
Dr. Larson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Larson's Medicare patients, 2024
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Larson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. David Douglas Larson takes part in Medicare
Dr. Larson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. David Douglas Larson received $454 in industry payments from 2018 to 2023
CMS Open Payments shows 9 general payments to Dr. Larson from 3 drug and device companies from 2018 to 2023. Food and beverage make up the largest share, 78% of the total. Chiesi USA, Inc. paid the most, $232.
General payments to Dr. Larson by program year, 2018 to 2023
General payments to Dr. Larson by kind, 2018 to 2023
- Food and beverage$35478%
- Consulting fees$10022%
- Education$10%
Companies that paid Dr. Larson the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Douglas Larson graduated from University Of Minnesota Medical School
Dr. Larson graduated from University Of Minnesota Medical School in 1982.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. David Douglas Larson accepts plans from 2 insurance carriers
Dr. Larson is in network with 2 carriers, including CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- CMS Medicare
- Molina
Source: Dmand AI Insurance Network Data
Sources for Dr. David Douglas Larson'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. David Douglas Larson
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. David Douglas Larson's NPI number?
Dr. David Douglas Larson's NPI number is 1255444535. It was assigned on August 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Douglas Larson?
Dr. David Douglas Larson is an anesthesiologist in Long Beach, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. David Douglas Larson practice?
Dr. Larson practices at 2801 Atlantic Ave, Long Beach, CA 90806. Dr. Larson's primary practice is Long Beach Medical Center in Long Beach, California, part of MemorialCare Health System. Dmand AI also links Dr. Larson to 1 therapy and rehab clinic and 1 medical group.
What is Dr. David Douglas Larson's office phone number?
The practice phone on file for Dr. Larson is (562) 933-2000.
What is Dr. David Douglas Larson's medical license number?
Dr. Larson holds California license G55863, one of the licenses on file in 2 states.
Which states has Dr. David Douglas Larson been licensed in?
Dmand AI has state licenses on file for Dr. Larson in California (1985 to 2027) and Washington (1993 to 2026).
Which hospitals is Dr. David Douglas Larson affiliated with?
Dr. Larson practices at Long Beach Medical Center in Long Beach, California.
What medical group is Dr. David Douglas Larson part of?
Dr. Larson is linked to CEP America. Dmand AI links Dr. Larson to 1 more medical group.
Does Dr. David Douglas Larson accept Medicare?
Yes. CMS lists Dr. Larson as accepting Medicare assignment.
How many Medicare patients does Dr. David Douglas Larson see?
CMS counts 13 Medicare patients who saw Dr. Larson in 2024, with an average age of 73.
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Is Dr. David Douglas Larson board certified?
Yes. Dr. Larson is board certified in anesthesiology by the American Board of Anesthesiology.
Where did Dr. David Douglas Larson go to medical school?
Dr. Larson graduated from University Of Minnesota Medical School in 1982.
Has Dr. David Douglas Larson received payments from drug or device companies?
CMS Open Payments shows $454 in general payments to Dr. Larson from 3 companies from 2018 to 2023. The largest total came from Chiesi USA, Inc.
How long has Dr. David Douglas Larson been practicing?
Dr. Larson graduated from medical school in 1982, 44 years ago.
What insurance does Dr. David Douglas Larson accept?
Dr. Larson is in network with 2 carriers, including CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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