Dr. Matthew Hong Gie Tan, MD
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 108
- MIPS score, 2024
- 100
- Hospital affiliations
- 3
- Industry payments
- $112,668
- Practice address
- 1828 East Cesar Chavez Avenue, Suite 6500, Los Angeles, CA 90033
- Practice phone
- Call (323) 263-6774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Doss Eye Medical Group
Surgery Center - Medicare-Certified · Los Angeles, 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. Matthew Hong Gie Tan is an anesthesiologist in Los Angeles, California
Dr. Tan practices at Doss Eye Medical Group in Los Angeles, California.
Dr. Tan's NPI, 1518527845, was assigned on June 18, 2019. Dr. Tan graduated from Keck School of Medicine of USC in 2019. Dr. Tan holds California license A182435.
- NPI
- 1518527845NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587018601
- NPI enumeration date
- June 18, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (323) 263-6774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew Hong Gie Tan practices at Doss Eye Medical Group in Los Angeles, California
Dr. Tan's primary practice is Doss Eye Medical Group, at 1828 East Cesar Chavez Avenue, Suite 6500, Los Angeles, CA 90033. The practice phone is (323) 263-6774.
- Doss Eye Medical Group1828 East Cesar Chavez Avenue, Suite 6500, Los Angeles, CA 90033Phone(323) 263-6774
Source: Dmand AI Affiliation Data
Dr. Matthew Hong Gie Tan is affiliated with 5 sites of care and 2 medical groups
Dr. Tan's primary practice is Doss Eye Medical Group in Los Angeles, California. Dr. Tan is also affiliated with Adventist Health White Memorial. The medical group on file is Foothills Pain Management Clinic. Dmand AI also links Dr. Tan to 2 more hospitals, 1 group practice or 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. Matthew Hong Gie Tan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Doss Eye Medical Group | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew Hong Gie Tan is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Tan's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Tan's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Pain medicine (anesthesiology), Illinois
Anesthesiologists near Dr. Tan
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. Matthew Hong Gie Tan treated 15 Medicare patients in 2024, average age 68
CMS counts 15 Medicare patients who saw Dr. Tan in 2024. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tan's median patient age at 61, with 62% women.
Chronic conditions among Dr. Tan's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
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 61
Patient panel by sex, all payers
- Women62%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Matthew Hong Gie Tan wrote 108 Medicare Part D claims in 2024
In 2024, Dr. Tan wrote 108 Medicare Part D claims for 36 patients. 97% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $560 in total drug cost.
Dr. Tan's Part D claims by kind of drug, 2024
- Generic105 claims97%
- Brand-name and other3 claims3%
Dr. Tan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Tan's Part D claims, 2024
- Opioids31%34 of 108 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Matthew Hong Gie Tan scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Tan for performance year 2024, reported as part of a group. Dr. Tan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Tan's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
- 66of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Matthew Hong Gie Tan received $112,668 in industry payments from 2023 to 2025
CMS Open Payments shows 196 general payments to Dr. Tan from 17 drug and device companies from 2023 to 2025. Grants make up the largest share, 84% of the total. Abbott Laboratories paid the most, $51,114.
General payments to Dr. Tan by program year, 2023 to 2025
General payments to Dr. Tan by kind, 2023 to 2025
- Grants$95,00084%
- Food and beverage$9,1758%
- Travel and lodging$8,4938%
Companies that paid Dr. Tan the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew Hong Gie Tan graduated from Keck School of Medicine of USC
Dr. Tan graduated from Keck School of Medicine of USC in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Matthew Hong Gie Tan accepts plans from 7 insurance carriers
Dr. Tan is in network with 7 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Aspirus Health Plan. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- HCSC
Plan types Dr. Tan accepts, by number of carriers
- PPO4
- POS3
- Medicare2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Matthew Hong Gie 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 | 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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)Clinician Public Reporting: Overall MIPS Performance (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. Matthew Hong Gie 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. Matthew Hong Gie Tan's NPI number?
Dr. Matthew Hong Gie Tan's NPI number is 1518527845. It was assigned on June 18, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Hong Gie Tan?
Dr. Matthew Hong Gie Tan is an anesthesiologist in Los Angeles, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Matthew Hong Gie Tan practice?
Dr. Tan practices at 1828 East Cesar Chavez Avenue, Suite 6500, Los Angeles, CA 90033. Dr. Tan's primary practice is Doss Eye Medical Group in Los Angeles, California. Dmand AI also links Dr. Tan to 2 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Matthew Hong Gie Tan's office phone number?
The practice phone on file for Dr. Tan is (323) 263-6774.
What is Dr. Matthew Hong Gie Tan's medical license number?
Dr. Tan holds California license A182435, one of the licenses on file in 2 states.
Which states has Dr. Matthew Hong Gie Tan been licensed in?
Dmand AI has state licenses on file for Dr. Tan in California (2022 to 2026) and Illinois (2023 to 2026).
Which hospitals is Dr. Matthew Hong Gie Tan affiliated with?
Dr. Tan is affiliated with Adventist Health White Memorial. Dmand AI links Dr. Tan to 2 more hospitals.
What medical group is Dr. Matthew Hong Gie Tan part of?
Dr. Tan is linked to Foothills Pain Management Clinic. Dmand AI links Dr. Tan to 1 more medical group.
Does Dr. Matthew Hong Gie Tan accept Medicare?
Yes. CMS lists Dr. Tan as accepting Medicare assignment.
What is Dr. Matthew Hong Gie Tan's MIPS score?
Dr. Tan's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Matthew Hong Gie Tan see?
CMS counts 15 Medicare patients who saw Dr. Tan in 2024, with an average age of 68.
Where did Dr. Matthew Hong Gie Tan go to medical school?
Dr. Tan graduated from Keck School of Medicine of USC in 2019.
What drugs does Dr. Matthew Hong Gie Tan prescribe most?
In 2024 Medicare Part D data, Dr. Tan's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Matthew Hong Gie Tan received payments from drug or device companies?
CMS Open Payments shows $112,668 in general payments to Dr. Tan from 17 companies from 2023 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Matthew Hong Gie Tan been practicing?
Dr. Tan graduated from medical school in 2019, 7 years ago.
What insurance does Dr. Matthew Hong Gie Tan accept?
Dr. Tan is in network with 7 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Aspirus Health Plan. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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