Dr. John K. Wong, MD

  • Orange, CA
  • Hematologist and oncologist
NPI1336436500PAC ID0749571677
Medicare services, 2024
1,127
Medicare patients, 2024
223
Part D claims, 2024
486
Publications
5
Hospital affiliations
4
Practice address
1100 West Stewart Dr, Orange, CA 92868
Practice phone
Call (714) 633-9111
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Providence St. Joseph Hospital Orange

Hospital · Orange, California

See all 9 affiliations

Find Dr. Wong'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.

View contacts for free

Dr. John K. Wong is a hematologist and oncologist in Orange, California

Dr. Wong practices at Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services.

Dr. Wong's NPI, 1336436500, was assigned on July 7, 2011. Dr. Wong graduated from Saint George's University School of Medicine in 2010. Dr. Wong holds California license 122357.

NPI and contact details
Medicare PAC ID
0749571677
NPI enumeration date
July 7, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(714) 633-9111
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
42
Medical school graduation
2010

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. John K. Wong practices at Providence St. Joseph Hospital Orange in Orange, California

Dr. Wong's primary practice is Providence St. Joseph Hospital Orange, at 1100 West Stewart Dr, Orange, CA 92868 in Orange County. The practice phone is (714) 633-9111.

Source: Dmand AI Affiliation Data

Dr. John K. Wong is affiliated with 6 sites of care and 3 medical groups

Dr. Wong's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. Dr. Wong is also affiliated with UCI Health - Orange. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Dr. Wong to 2 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.

See all 9 affiliations for Dr. Wong

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. John K. Wong's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wong practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Providence St. Joseph Hospital OrangeAvailable with a free account
+5 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Wong practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Providence Health & Services and 6.2K+ hospitals, with verified contacts in the same login.

Dr. John K. Wong is one of 1,502 hematologists and oncologists in California

Hematology and oncology is Dr. Wong's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Wong is board certified in hematology by the American Board of Internal Medicine. Dr. Wong is licensed in California.

Specialties and state licenses

  • Hematology and oncology, CaliforniaPrimaryLicense 122357 · 2012 to 2026 · taxonomy 207RH0003X

Clinical focus

Dmand AI lists breast cancer, chronic anemia, chronic leukemia, deep vein thrombosis (DVT), immune deficiency disease, lung cancer, lymphoma and multiple myeloma among the conditions Dr. Wong treats.

Hematologists and oncologists near Dr. Wong

Counts of hematologists and oncologists 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. John K. Wong billed Medicare for 1,127 services in 2024

CMS data shows 1,127 Medicare services from Dr. Wong across 11 procedure codes in 2024, for 223 Medicare patients. Medicare paid $70,354 for them.

Medicare services, 20241,127
Medicare patients223
Paid by Medicare$70,354
Procedure codes11

Dr. Wong's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 8092024: 68915%
Tests and treatments
2023: 692024: 193180%
Surgery
2023: 4542024: 12473%
Lab and pathology
2023: 5692024: 12179%

Where Dr. Wong's Medicare services took place, 2024

  • In an office1,04292%
  • In a facility858%

Dr. Wong compared with the California median for hematologists and oncologists, 2024

  • Dr. Wong
  • California median
Medicare services
1,127vs 93221% above
Medicare patients
223vs 225Close to median
Part D claims
341vs 39413% below

Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.

Dr. Wong'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.

See all procedures by Dr. Wong

Need commercial claims for Dr. Wong?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wong and other hematologists and oncologists in California.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. John K. Wong treated 223 Medicare patients in 2024, average age 77

CMS counts 223 Medicare patients who saw Dr. Wong in 2024. The largest group is 75 to 84, with 83 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 21% are also on Medicaid. Their average risk score is 2.24, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Wong's median patient age at 66, with 55% women.

Medicare patients, 2024223
Average age77
Average risk score2.24
Also on Medicaid21%

Dr. Wong's Medicare patients by age, 2024

Dr. Wong's Medicare patients by sex, 2024

  • Women11250%
  • Men11150%

Chronic conditions among Dr. Wong's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol74%
  3. Arthritis44%
  4. Ischemic heart disease37%
  5. Cancer34%
  6. Chronic kidney disease33%
  7. Diabetes32%
  8. Atrial fibrillation25%

Share of Medicare patients with each condition. A patient can have several.

Dr. Wong'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

  • Women55%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. John K. Wong wrote 486 Medicare Part D claims in 2024

In 2024, Dr. Wong wrote 486 Medicare Part D claims for 114 patients. 58% of them were for generic drugs. CMS names the drug for 341 of them, across 15 drugs with 11 or more claims each, at $1,465,253 in total drug cost. In 2023, CMS named 286 claims across 16 drugs.

Part D claims, 2024486
Drugs named by CMS15
Total drug cost$1.5M
Part D patients114

Dr. Wong's Part D claims by kind of drug, 2024

  • Generic284 claims58%
  • Brand-name202 claims42%

Dr. Wong'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2862024: 34119%

Drugs named by CMS: 15 in 2024, 16 in 2023.

See all prescribing by Dr. Wong

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. John K. Wong offers telehealth to Medicare patients

Dr. Wong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Wong as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

For MedTech and pharma teams

Find hematologists and oncologists like Dr. Wong by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. John K. Wong has 5 publications on record

Dmand AI links 5 papers to Dr. Wong, published from 2017 to 2025. 2019 was the busiest year, with 2. Dr. Wong has published most often in Exp Hematol Oncol. Dr. Wong's most frequent co-authors are Jeffrey Yoonjae Ahn, MD, Chung-Tsen Hsueh, MD and Hamid R. Mirshahidi, MD.

Papers5
Years published2017 to 2025

Dr. Wong's papers by year, 2017 to 2025

Dr. Wong's most frequent co-authors

Recent publications by Dr. Wong

See all 5 publications and co-authors

See who Dr. Wong researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wong works with, so you can find a warm path to the right hematologists and oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. John K. Wong received $25,657 in industry payments from 2017 to 2025

CMS Open Payments shows 1,068 general payments to Dr. Wong from 78 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 87% of the total. Novartis Pharmaceuticals Corporation paid the most, $3,730.

General payments to Dr. Wong by program year, 2017 to 2025

General payments to Dr. Wong by kind, 2017 to 2025

$25.7Kin total
  • Food and beverage$22,21187%
  • Device or supply loans$2,0988%
  • Travel and lodging$7803%
  • Education$5682%

Companies that paid Dr. Wong the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Wong

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. John K. Wong graduated from Saint George's University School of Medicine

Dr. Wong graduated from Saint George's University School of Medicine in 2010. Dr. Wong is a member of ASCO and ASH.

  1. Medical schoolSaint George's University School of Medicine
  2. Board certified in hematologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine
  4. Board certified in medical oncologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. John K. Wong accepts plans from 8 insurance carriers

Dr. Wong is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, Humana and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Humana
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • LA Care
  • Regence Health Plans
  • CMS Medicare
  • Molina

Plan types Dr. Wong accepts, by number of carriers

  1. Medicare7
  2. PPO5
  3. HMO3
  4. Medicaid1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. John K. Wong's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. John K. Wong

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. John K. Wong's NPI number?

Dr. John K. Wong's NPI number is 1336436500. It was assigned on July 7, 2011, and it is active in the NPI Registry.

What kind of doctor is Dr. John K. Wong?

Dr. John K. Wong is a hematologist and oncologist in Orange, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. John K. Wong practice?

Dr. Wong practices at 1100 West Stewart Dr, Orange, CA 92868. Dr. Wong's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. Dmand AI also links Dr. Wong to 2 hospitals, 2 group practices and clinics and 2 medical groups.

What is Dr. John K. Wong's office phone number?

The practice phone on file for Dr. Wong is (714) 633-9111.

What is Dr. John K. Wong's medical license number?

Dr. Wong holds California license 122357.

Which hospitals is Dr. John K. Wong affiliated with?

Dr. Wong practices at Providence St. Joseph Hospital Orange in Orange, California. Dr. Wong is also affiliated with UCI Health - Orange. Dmand AI links Dr. Wong to 2 more hospitals.

What medical group is Dr. John K. Wong part of?

Dr. Wong is linked to Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI links Dr. Wong to 2 more medical groups.

Does Dr. John K. Wong accept Medicare?

Yes. CMS data shows Dr. Wong billed Medicare for 1,127 services in 2024, and Dr. Wong accepts Medicare assignment.

Does Dr. John K. Wong offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Wong as offering telehealth services.

How many Medicare patients does Dr. John K. Wong see?

CMS counts 223 Medicare patients who saw Dr. Wong in 2024, with an average age of 77.

Show 9 more questionsShow fewer questions

Is Dr. John K. Wong board certified?

Yes. Dr. Wong is board certified in hematology by the American Board of Internal Medicine.

What services does Dr. John K. Wong bill to Medicare?

In 2024, Dr. Wong's most billed Medicare services were office visit, established patient (99214), infusion or chemotherapy administration (96372) and surgery: heart and blood vessels (36415).

Where did Dr. John K. Wong go to medical school?

Dr. Wong graduated from Saint George's University School of Medicine in 2010.

What drugs does Dr. John K. Wong prescribe most?

In 2024 Medicare Part D data, Dr. Wong's most prescribed drugs by claims were Eliquis, Brukinsa and Revlimid.

Has Dr. John K. Wong received payments from drug or device companies?

CMS Open Payments shows $25,657 in general payments to Dr. Wong from 78 companies from 2017 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.

How long has Dr. John K. Wong been practicing?

Dr. Wong graduated from medical school in 2010, 16 years ago.

Does Dr. John K. Wong do research?

Dmand AI links 5 publications to Dr. Wong, published from 2017 to 2025.

Who does Dr. John K. Wong publish with?

Dr. Wong's most frequent co-authors are Jeffrey Yoonjae Ahn, MD (1 shared paper), Chung-Tsen Hsueh, MD (1 shared paper) and Hamid R. Mirshahidi, MD (1 shared paper).

What insurance does Dr. John K. Wong accept?

Dr. Wong is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, Humana and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

Selling to hematology and oncology practices?

See hematologists and oncologists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)