J Gastrointest Surg
Breast NeoplasmsCarcinoma, HepatocellularColorectal Neoplasms
Dr. Evan Ong, MD
NPI1073541959PAC ID6204839335
- Medicare services, 2024
- 109
- Medicare patients, 2024
- 99
- Part D claims, 2024
- 40
- Publications
- 23
- MIPS score, 2024
- 87
- Practice address
- 1221 Madison St, Seattle, WA 98104
- Practice phone
- Call (206) 682-2200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Alisa G. Rekow M.D., LLC
Seattle, Washington
Find Dr. Ong'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. Evan Ong is a surgical oncologist in Seattle, Washington
Dr. Ong practices at Alisa G. Rekow M.D., LLC in Seattle, Washington.
Dr. Ong's NPI, 1073541959, was assigned on June 29, 2006. Dr. Ong graduated from Albert Einstein College of Medicine of Yeshiva University in 1999. Dr. Ong holds Washington license 60454602.
NPI and contact details
- NPI
- 1073541959NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204839335
- NPI enumeration date
- June 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (206) 682-2200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Evan Ong practices at Alisa G. Rekow M.D., LLC in Seattle, Washington
Dr. Ong's primary practice is Alisa G. Rekow M.D., LLC, at 1221 Madison St, Seattle, WA 98104 in King County. The practice phone is (206) 682-2200.
- Alisa G. Rekow M.D., LLC1221 Madison St, Seattle, WA 98104 · King CountyPhone(206) 682-2200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Evan Ong is affiliated with 4 sites of care and 2 medical groups
Dr. Ong's primary practice is Alisa G. Rekow M.D., LLC in Seattle, Washington. Dr. Ong is also affiliated with Swedish First Hill Campus. The medical group on file is Swedish Health Services. Dmand AI also links Dr. Ong to 2 more group practices and clinics and 1 medical group, each named with a free account.
Alisa G. Rekow M.D., LLCPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Evan Ong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ong practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alisa G. Rekow M.D., LLC | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Evan Ong is one of 31 surgical oncologists in Washington
Surgical oncology is Dr. Ong's primary specialty in the NPI Registry, under taxonomy code 2086X0206X. Dr. Ong is licensed in Washington.
Specialties and state licenses
- Surgical oncology, WashingtonPrimary
Surgical oncologists near Dr. Ong
Counts of surgical 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. Evan Ong billed Medicare for 109 services in 2024
CMS data shows 109 Medicare services from Dr. Ong across 6 procedure codes in 2024, for 99 Medicare patients. Medicare paid $28,573 for them.
Medicare services, 2024109
Medicare patients99
Paid by Medicare$28,573
Procedure codes6
Dr. Ong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 502024: 9692%
- Other services
- 2023: 02024: 13
Where Dr. Ong's Medicare services took place, 2024
- In an office9688%
- In a facility1312%
Dr. Ong compared with the Washington median for surgical oncologists, 2024
- Dr. Ong
- Washington median
- Medicare services
- 109vs 114Close to median
- Medicare patients
- 99vs 8221% above
- Part D claims
- 38vs 4719% below
Medians across 31 surgical oncologists in Washington with Dmand AI profiles that report each measure.
Dr. Ong'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.
Need commercial claims for Dr. Ong?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ong and other surgical oncologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Evan Ong treated 99 Medicare patients in 2024, average age 73
CMS counts 99 Medicare patients who saw Dr. Ong in 2024. The largest group is 75 to 84, with 41 patients. 69% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 2.35, 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. Ong's median patient age at 70, with 60% women.
Medicare patients, 202499
Average age73
Average risk score2.35
Dr. Ong's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ong's Medicare patients by sex, 2024
- Women4848%
- Men5152%
Chronic conditions among Dr. Ong's Medicare patients, 2024
- High cholesterol69%
- High blood pressure65%
- Cancer45%
- Arthritis36%
- Atrial fibrillation27%
- Ischemic heart disease24%
- Anxiety23%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Evan Ong wrote 40 Medicare Part D claims in 2024
In 2024, Dr. Ong wrote 40 Medicare Part D claims for 14 patients. 95% of them were for generic drugs. CMS names the drug for 38 of them, across 3 drugs with 11 or more claims each, at $551 in total drug cost.
Part D claims, 202440
Drugs named by CMS3
Total drug cost$551
Part D patients14
Dr. Ong's Part D claims by kind of drug, 2024
- Generic38 claims95%
- Brand-name and other2 claims5%
Dr. Ong's most prescribed drugs by claims, 2017
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. Ong's Part D claims, 2024
- Antibiotics38%15 of 40 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. Evan Ong scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Ong for performance year 2024, reported as part of a group. Dr. Ong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ong as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Ong's MIPS scores, performance year 2024
- 87of 100Final score
- 84.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 72of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Evan Ong has 23 publications on record
Dmand AI links 23 papers to Dr. Ong, published from 2012 to 2025. 2021 was the busiest year, with 3. The most frequent topics are Gastrointestinal Stromal Tumors, Pancreatic Neoplasms and Breast Neoplasms. Dr. Ong has published most often in World J Surg. Dr. Ong's most frequent co-authors are Tun Jie, MD, Mohamed M. Alassas, MD and Federico N. Aucejo, MD.
Papers23
Years published2012 to 2025
Dr. Ong's papers by year, 2012 to 2025
Topics Dr. Ong writes about most
- Gastrointestinal Stromal Tumors
- Pancreatic Neoplasms
- Breast Neoplasms
- Colonic Neoplasms
- Laparoscopy
- Peritoneal Neoplasms
- Tomography, X-Ray Computed
Dr. Ong's most frequent co-authors
- Tun Jie, MD9 shared papers
- Mohamed M. Alassas, MD5 shared papers
- Federico N. Aucejo, MD2 shared papers
Recent publications by Dr. Ong
Adenocarcinoma, MucinousAppendectomyAppendiceal Neoplasms
See who Dr. Ong researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ong works with, so you can find a warm path to the right surgical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Evan Ong received $20,394 in industry payments from 2016 to 2025
CMS Open Payments shows 23 general payments to Dr. Ong from 7 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 70% of the total. Histosonics, Inc. paid the most, $17,815.
General payments to Dr. Ong by program year, 2016 to 2025
General payments to Dr. Ong by kind, 2016 to 2025
$20.4Kin total
- Consulting fees$14,30070%
- Travel and lodging$3,70618%
- Food and beverage$1,3887%
- Honoraria$1,0005%
Companies that paid Dr. Ong the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Evan Ong graduated from Albert Einstein College of Medicine of Yeshiva University
Dr. Ong graduated from Albert Einstein College of Medicine of Yeshiva University in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Evan Ong'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Evan Ong
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. Evan Ong's NPI number?
Dr. Evan Ong's NPI number is 1073541959. It was assigned on June 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Evan Ong?
Dr. Evan Ong is a surgical oncologist in Seattle, Washington. The primary specialty in the NPI Registry is Surgical Oncology Physician (taxonomy code 2086X0206X).
Where does Dr. Evan Ong practice?
Dr. Ong practices at 1221 Madison St, Seattle, WA 98104. Dr. Ong's primary practice is Alisa G. Rekow M.D., LLC in Seattle, Washington. Dmand AI also links Dr. Ong to 2 group practices and clinics and 1 medical group.
What is Dr. Evan Ong's office phone number?
The practice phone on file for Dr. Ong is (206) 682-2200.
What is Dr. Evan Ong's medical license number?
Dr. Ong holds Washington license 60454602.
Which hospitals is Dr. Evan Ong affiliated with?
Dr. Ong is affiliated with Swedish First Hill Campus.
What medical group is Dr. Evan Ong part of?
Dr. Ong is linked to Swedish Health Services. Dmand AI links Dr. Ong to 1 more medical group.
Does Dr. Evan Ong accept Medicare?
Yes. CMS data shows Dr. Ong billed Medicare for 109 services in 2024, and Dr. Ong accepts Medicare assignment.
Does Dr. Evan Ong offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ong as offering telehealth services.
What is Dr. Evan Ong's MIPS score?
Dr. Ong's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Evan Ong see?
CMS counts 99 Medicare patients who saw Dr. Ong in 2024, with an average age of 73.
What services does Dr. Evan Ong bill to Medicare?
In 2024, Dr. Ong's most billed Medicare services were office visit, new patient (99205), office visit, established patient (99214) and office visit, new patient (99204).
Where did Dr. Evan Ong go to medical school?
Dr. Ong graduated from Albert Einstein College of Medicine of Yeshiva University in 1999.
What drugs does Dr. Evan Ong prescribe most?
In 2017 Medicare Part D data, Dr. Ong's most prescribed drugs by claims were Gavilyte-G, Neomycin Sulfate and Oxycodone HCl.
Has Dr. Evan Ong received payments from drug or device companies?
CMS Open Payments shows $20,394 in general payments to Dr. Ong from 7 companies from 2016 to 2025. The largest total came from Histosonics, Inc.
How long has Dr. Evan Ong been practicing?
Dr. Ong graduated from medical school in 1999, 27 years ago.
Does Dr. Evan Ong do research?
Dmand AI links 23 publications to Dr. Ong, published from 2012 to 2025.
Who does Dr. Evan Ong publish with?
Dr. Ong's most frequent co-authors are Tun Jie, MD (9 shared papers), Mohamed M. Alassas, MD (5 shared papers) and Federico N. Aucejo, MD (2 shared papers).
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