Dr. Tik Lung Dion Fung, MD
- Medicare services, 2020
- 29
- Medicare patients, 2024
- 16
- Part D claims, 2024
- 1,532
- Hospital affiliations
- 1
- Industry payments
- $114
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fung'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. Tik Lung Dion Fung is a neurologist in Fontana, California
Dr. Fung practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Dr. Fung's NPI, 1710167994, was assigned on November 6, 2007. Dr. Fung graduated from McGill University Faculty of Medicine in 2004. Dr. Fung holds California license A98198.
- NPI
- 1710167994NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072780451
- NPI enumeration date
- November 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tik Lung Dion Fung practices at Fontana Medical Center in Fontana, California
Dr. Fung's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Source: Dmand AI Affiliation Data
Dr. Tik Lung Dion Fung is affiliated with 2 sites of care and 1 medical group
Dr. Fung's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Fung to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Tik Lung Dion Fung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fung practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tik Lung Dion Fung is one of 2,207 neurologists in California
Neurology is Dr. Fung's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Fung is board certified in neurology by the American Board of Psychiatry and Neurology. Dr. Fung is licensed in California.
Specialties and state licenses
- Neurology, CaliforniaPrimary
Clinical focus
Dmand AI lists epilepsy and essential tremor among the conditions Dr. Fung treats.
Neurologists near Dr. Fung
Counts of neurologists 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. Tik Lung Dion Fung billed Medicare for 29 services in 2020
CMS data shows 29 Medicare services from Dr. Fung across 1 procedure code in 2020, for 16 Medicare patients. Medicare paid $967 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Fung's Medicare services by type, 2018 to 2020
- 2018
- 2020
- Office and hospital visits
- 2018: 382020: 2924%
Dr. Fung compared with the California median for neurologists, 2020
- Dr. Fung
- California median
- Medicare services
- 29vs 40493% below
- Medicare patients
- 16vs 19092% below
- Part D claims
- 1,336vs 3244.1 times
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Fung's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Fung?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fung and other neurologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tik Lung Dion Fung treated 16 Medicare patients in 2024, average age 53
CMS counts 16 Medicare patients who saw Dr. Fung in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fung's median patient age at 51, with 68% women.
Dr. Fung's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tik Lung Dion Fung wrote 1,532 Medicare Part D claims in 2024
In 2024, Dr. Fung wrote 1,532 Medicare Part D claims for 337 patients. 90% of them were for generic drugs. CMS names the drug for 1,336 of them, across 34 drugs with 11 or more claims each, at $304,398 in total drug cost. In 2023, CMS named 1,116 claims across 28 drugs.
Dr. Fung's Part D claims by kind of drug, 2024
- Generic1,384 claims90%
- Brand-name and other148 claims10%
Dr. Fung'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. Fung's Part D claims, 2024
- Opioids1%17 of 1,532 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1162024: 1,33620%
Drugs named by CMS: 34 in 2024, 28 in 2023.
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
How Dr. Tik Lung Dion Fung takes part in Medicare
Dr. Fung 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)
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Dr. Tik Lung Dion Fung received $114 in industry payments from 2016 to 2017
CMS Open Payments shows 7 general payments to Dr. Fung from 6 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Supernus Pharmaceuticals, Inc. paid the most, $44.
General payments to Dr. Fung by program year, 2016 to 2017
Companies that paid Dr. Fung the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tik Lung Dion Fung graduated from McGill University Faculty of Medicine
Dr. Fung graduated from McGill University Faculty of Medicine in 2004.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Dr. Tik Lung Dion Fung accepts plans from 6 insurance carriers
Dr. Fung is in network with 6 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Kaiser Permanente
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Fung accepts, by number of carriers
- Medicare5
- PPO4
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Tik Lung Dion Fung'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| 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. Tik Lung Dion Fung
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. Tik Lung Dion Fung's NPI number?
Dr. Tik Lung Dion Fung's NPI number is 1710167994. It was assigned on November 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Tik Lung Dion Fung?
Dr. Tik Lung Dion Fung is a neurologist in Fontana, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Tik Lung Dion Fung practice?
Dr. Fung practices at 9961 Sierra Ave, Fontana, CA 92335. Dr. Fung's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. Dmand AI also links Dr. Fung to 1 group practice or clinic.
What is Dr. Tik Lung Dion Fung's office phone number?
The practice phone on file for Dr. Fung is (909) 427-5000.
What is Dr. Tik Lung Dion Fung's medical license number?
Dr. Fung holds California license A98198.
Which hospitals is Dr. Tik Lung Dion Fung affiliated with?
Dr. Fung practices at Fontana Medical Center in Fontana, California.
What medical group is Dr. Tik Lung Dion Fung part of?
Dr. Fung is linked to Southern California Permanente Medical Group.
Does Dr. Tik Lung Dion Fung accept Medicare?
Yes. CMS data shows Dr. Fung billed Medicare for 29 services in 2020, and Dr. Fung accepts Medicare assignment.
How many Medicare patients does Dr. Tik Lung Dion Fung see?
CMS counts 16 Medicare patients who saw Dr. Fung in 2024, with an average age of 53.
Is Dr. Tik Lung Dion Fung board certified?
Yes. Dr. Fung is board certified in neurology by the American Board of Psychiatry and Neurology.
Show 6 more questionsShow fewer questions
What services does Dr. Tik Lung Dion Fung bill to Medicare?
In 2020, Dr. Fung's most billed Medicare services were hospital inpatient care (99231).
Where did Dr. Tik Lung Dion Fung go to medical school?
Dr. Fung graduated from McGill University Faculty of Medicine in 2004.
What drugs does Dr. Tik Lung Dion Fung prescribe most?
In 2024 Medicare Part D data, Dr. Fung's most prescribed drugs by claims were Carbidopa-Levodopa, Levetiracetam and Gabapentin.
Has Dr. Tik Lung Dion Fung received payments from drug or device companies?
CMS Open Payments shows $114 in general payments to Dr. Fung from 6 companies from 2016 to 2017. The largest total came from Supernus Pharmaceuticals, Inc.
How long has Dr. Tik Lung Dion Fung been practicing?
Dr. Fung graduated from medical school in 2004, 22 years ago.
What insurance does Dr. Tik Lung Dion Fung accept?
Dr. Fung is in network with 6 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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