Biol Blood Marrow Transplant
Double-Blind MethodGraft vs Host DiseaseHematologic Neoplasms
Dr. Thomas H. Fong, MD
NPI1790812642PAC ID2466510623
- Medicare services, 2024
- 42
- Medicare patients, 2024
- 35
- Part D claims, 2024
- 1,631
- Publications
- 1
- Hospital affiliations
- 1
- 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. Fong's professional email, personal email and mobile number
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Dr. Thomas H. Fong is a hematologist and oncologist in Fontana, California
Dr. Fong practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Dr. Fong's NPI, 1790812642, was assigned on February 27, 2007. Dr. Fong graduated from WashU Medicine in 2001. Dr. Fong's Missouri license number on file is 2004012109.
NPI and contact details
- NPI
- 1790812642NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466510623
- NPI enumeration date
- February 27, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas H. Fong practices at Fontana Medical Center in Fontana, California
Dr. Fong'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. Thomas H. Fong is affiliated with 2 sites of care and 1 medical group
Dr. Fong'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. Fong 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. Thomas H. Fong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fong 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. Thomas H. Fong is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Fong's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Fong is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Fong's licenses on file in 2 states: Missouri and California.
Specialties and state licenses
- Hematology and oncology, MissouriPrimary
- California license
Hematologists and oncologists near Dr. Fong
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
1,502hematologists and oncologists in California
9hematologists and oncologists in Fontana
7hematologists and oncologists at Fontana Medical CenterSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas H. Fong billed Medicare for 42 services in 2024
CMS data shows 42 Medicare services from Dr. Fong across 2 procedure codes in 2024, for 35 Medicare patients. Medicare paid $1,548 for them. Every service was in an office.
Medicare services, 202442
Medicare patients35
Paid by Medicare$1,548
Procedure codes2
Dr. Fong's Medicare services by type, 2019 to 2024
- 2019
- 2024
- Drugs given in the office
- 2019: 02024: 24
- Office and hospital visits
- 2019: 172024: 186%
Dr. Fong compared with the California median for hematologists and oncologists, 2024
- Dr. Fong
- California median
- Medicare services
- 42vs 93295% below
- Medicare patients
- 35vs 22584% below
- Part D claims
- 1,438vs 3943.6 times
Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.
Dr. Fong's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fong and other hematologists and oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas H. Fong treated 35 Medicare patients in 2024, average age 63
CMS counts 35 Medicare patients who saw Dr. Fong in 2024. The largest group is 65 to 74, with 18 patients. 51% of them have cancer, and 40% have high blood pressure. 37% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fong's median patient age at 62, with 67% women.
Medicare patients, 202435
Average age63
Average risk score1.21
Also on Medicaid37%
Dr. Fong's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fong's Medicare patients by sex, 2024
- Women2057%
- Men1543%
Chronic conditions among Dr. Fong's Medicare patients, 2024
- Cancer51%
- High blood pressure40%
- Diabetes37%
- High cholesterol34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas H. Fong wrote 1,631 Medicare Part D claims in 2024
In 2024, Dr. Fong wrote 1,631 Medicare Part D claims for 326 patients. 80% of them were for generic drugs. CMS names the drug for 1,438 of them, across 36 drugs with 11 or more claims each, at $3,656,478 in total drug cost. In 2023, CMS named 1,332 claims across 35 drugs.
Part D claims, 20241,631
Drugs named by CMS36
Total drug cost$3.7M
Part D patients326
Dr. Fong's Part D claims by kind of drug, 2024
- Generic1,305 claims80%
- Brand-name and other326 claims20%
Dr. Fong'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. Fong's Part D claims, 2024
- Opioids2%29 of 1,631 claims
- Antibiotics1%11 of 1,631 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: 1,3322024: 1,4388%
Drugs named by CMS: 36 in 2024, 35 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
Dr. Thomas H. Fong offers telehealth to Medicare patients
Dr. Fong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Fong as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Thomas H. Fong has 1 publication on record
Dmand AI links 1 paper to Dr. Fong. Dr. Fong's most frequent co-authors are John F. Dipersio, MD and Lawrence Tim Goodnough, MD.
Papers1
Dr. Fong's most frequent co-authors
Recent publications by Dr. Fong
See who Dr. Fong researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fong works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas H. Fong received $163 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Fong from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Royal Biologics paid the most, $163.
Companies that paid Dr. Fong the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas H. Fong has 1 award and honors on record
Dmand AI lists 1 award for Dr. Fong, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Fong
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Thomas H. Fong graduated from WashU Medicine
Dr. Fong graduated from WashU Medicine in 2001.
- Medical school
- Board certified in hematology
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Thomas H. Fong accepts plans from 2 insurance carriers
Dr. Fong is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Fong accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas H. Fong'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Thomas H. Fong
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. Thomas H. Fong's NPI number?
Dr. Thomas H. Fong's NPI number is 1790812642. It was assigned on February 27, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas H. Fong?
Dr. Thomas H. Fong is a hematologist and oncologist in Fontana, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Thomas H. Fong practice?
Dr. Fong practices at 9961 Sierra Ave, Fontana, CA 92335. Dr. Fong's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. Dmand AI also links Dr. Fong to 1 group practice or clinic.
What is Dr. Thomas H. Fong's office phone number?
The practice phone on file for Dr. Fong is (909) 427-5000.
What is Dr. Thomas H. Fong's medical license number?
Dr. Fong's Missouri license number on file is 2004012109, one of the licenses on file in 2 states.
Which states has Dr. Thomas H. Fong been licensed in?
Dmand AI has state licenses on file for Dr. Fong in Missouri (2004 to 2009) and California (2008 to 2026).
Which hospitals is Dr. Thomas H. Fong affiliated with?
Dr. Fong practices at Fontana Medical Center in Fontana, California.
What medical group is Dr. Thomas H. Fong part of?
Dr. Fong is linked to Southern California Permanente Medical Group.
Does Dr. Thomas H. Fong accept Medicare?
Yes. CMS data shows Dr. Fong billed Medicare for 42 services in 2024, and Dr. Fong accepts Medicare assignment.
Does Dr. Thomas H. Fong offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Fong as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Thomas H. Fong see?
CMS counts 35 Medicare patients who saw Dr. Fong in 2024, with an average age of 63.
Is Dr. Thomas H. Fong board certified?
Yes. Dr. Fong is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. Thomas H. Fong bill to Medicare?
In 2024, Dr. Fong's most billed Medicare services were injected or infused drug (J7030) and office visit, established patient (99214).
Where did Dr. Thomas H. Fong go to medical school?
Dr. Fong graduated from WashU Medicine in 2001.
What drugs does Dr. Thomas H. Fong prescribe most?
In 2024 Medicare Part D data, Dr. Fong's most prescribed drugs by claims were Anastrozole, Prednisone and Dexamethasone.
Has Dr. Thomas H. Fong received payments from drug or device companies?
CMS Open Payments shows $163 in general payments to Dr. Fong from 1 company from 2025 to 2025. The largest total came from Royal Biologics.
How long has Dr. Thomas H. Fong been practicing?
Dr. Fong graduated from medical school in 2001, 25 years ago.
Does Dr. Thomas H. Fong do research?
Dmand AI links 1 publication to Dr. Fong.
Who does Dr. Thomas H. Fong publish with?
Dr. Fong's most frequent co-authors are John F. Dipersio, MD (1 shared paper) and Lawrence Tim Goodnough, MD (1 shared paper).
What insurance does Dr. Thomas H. Fong accept?
Dr. Fong is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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