Dr. Larissa R. Tan, MD
- Part D claims, 2021
- 19
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 1
- State license
- 1
- Practice address
- 441 N Lakeview Ave, Anaheim, CA 92807
- Practice phone
- Call (714) 279-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave)
Multi-specialty group site · Anaheim, California
Find Dr. Tan'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. Larissa R. Tan is a general surgeon in Anaheim, California
Dr. Tan practices at Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave) in Anaheim, California.
Dr. Tan's NPI, 1033280912, was assigned on November 13, 2006. Dr. Tan graduated from UC Irvine School of Medicine in 1989. Dr. Tan holds California license G71354.
- NPI
- 1033280912NPI Registry (opens in a new tab)
- NPI enumeration date
- November 13, 2006
- NPI status
- Active
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Larissa R. Tan practices at 2 locations in Anaheim, California
Dr. Tan's primary practice is Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave), at 441 N Lakeview Ave, Anaheim, CA 92807. The practice phone is (714) 279-4000. The NPI Registry lists Dr. Tan's practice address as 3440 E La Palma Ave, Anaheim, CA 92806.
- Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave)Primary441 N Lakeview Ave, Anaheim, CA 92807Phone(714) 279-4000
- NPI Registry address3440 E La Palma Ave, Anaheim, CA 92806 · Orange CountyPhone(888) 988-2800
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Larissa R. Tan is affiliated with 1 site of care and 1 medical group
Dr. Tan's primary practice is Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave) in Anaheim, California. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Larissa R. Tan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Larissa R. Tan is one of 2,926 general surgeons in California
Surgery is Dr. Tan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Tan is board certified in surgery by the American Board of Surgery. Dr. Tan is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Tan
Counts of general surgeons 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. Larissa R. Tan's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Tan's median patient age at 66, with 100% women.
Dr. Tan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Larissa R. Tan wrote 19 Medicare Part D claims in 2021
In 2021, Dr. Tan wrote 19 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $131 in total drug cost. In 2020, CMS named 12 claims across 1 drug.
Dr. Tan's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 122021: 1958%
Drugs named by CMS: 1 in 2021, 1 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Larissa R. Tan graduated from UC Irvine School of Medicine
Dr. Tan graduated from UC Irvine School of Medicine in 1989.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Larissa R. Tan accepts plans from 1 insurance carrier
Dr. Tan is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Tan accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Larissa R. Tan'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Larissa R. Tan
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. Larissa R. Tan's NPI number?
Dr. Larissa R. Tan's NPI number is 1033280912. It was assigned on November 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Larissa R. Tan?
Dr. Larissa R. Tan is a general surgeon in Anaheim, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Larissa R. Tan practice?
Dr. Tan practices at 441 N Lakeview Ave, Anaheim, CA 92807. Dr. Tan also practices at 3440 E La Palma Ave, Anaheim, CA 92806. Dr. Tan's primary practice is Southern California Permanente Medical Group - Anaheim (441 N Lakeview Ave) in Anaheim, California.
What is Dr. Larissa R. Tan's office phone number?
The practice phone on file for Dr. Tan is (714) 279-4000.
What is Dr. Larissa R. Tan's medical license number?
Dr. Tan holds California license G71354.
What medical group is Dr. Larissa R. Tan part of?
Dr. Tan is linked to Southern California Permanente Medical Group.
Is Dr. Larissa R. Tan board certified?
Yes. Dr. Tan is board certified in surgery by the American Board of Surgery.
Where did Dr. Larissa R. Tan go to medical school?
Dr. Tan graduated from UC Irvine School of Medicine in 1989.
What drugs does Dr. Larissa R. Tan prescribe most?
In 2021 Medicare Part D data, Dr. Tan's most prescribed drugs by claims were Tramadol HCl.
How long has Dr. Larissa R. Tan been practicing?
Dr. Tan graduated from medical school in 1989, 37 years ago.
What insurance does Dr. Larissa R. Tan accept?
Dr. Tan is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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