Dr. Isuru Udayanga Wijesinghe, DO
- Medicare services, 2024
- 164
- Medicare patients, 2024
- 264
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Industry payments
- $580
- Practice address
- 1600 N Rose Ave, Oxnard, CA 93030
- Practice phone
- Call (805) 988-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Wijesinghe's professional email, personal email and mobile number
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Dr. Isuru Udayanga Wijesinghe is an anesthesiologist in Oxnard, California
Dr. Wijesinghe practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health.
Dr. Wijesinghe's NPI, 1275977019, was assigned on April 23, 2013. Dr. Wijesinghe holds New York license 293869.
- NPI
- 1275977019NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406118777
- NPI enumeration date
- April 23, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 988-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Isuru Udayanga Wijesinghe practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California
Dr. Wijesinghe's primary practice is Dignity Health - St. John's Regional Medical Center, at 1600 N Rose Ave, Oxnard, CA 93030 in Ventura County. The practice phone is (805) 988-2500.
- Dignity Health - St. John's Regional Medical Center1600 N Rose Ave, Oxnard, CA 93030 · Ventura CountyPhone(805) 988-2500
Source: Dmand AI Affiliation Data
Dr. Isuru Udayanga Wijesinghe is affiliated with 2 sites of care and 2 medical groups
Dr. Wijesinghe's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. The medical group on file is Palm Spring Anesthesia. Dmand AI also links Dr. Wijesinghe to 1 more hospital 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. Isuru Udayanga Wijesinghe's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wijesinghe practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - St. John's Regional Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Isuru Udayanga Wijesinghe is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Wijesinghe's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Wijesinghe's licenses on file in 2 states: New York and California.
Specialties and state licenses
- Anesthesiology, New YorkPrimary
- California license
Anesthesiologists near Dr. Wijesinghe
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. Isuru Udayanga Wijesinghe billed Medicare for 164 services in 2024
CMS data shows 164 Medicare services from Dr. Wijesinghe across 7 procedure codes in 2024, for 264 Medicare patients. Medicare paid $23,843 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Wijesinghe's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1152024: 10410%
- Surgery
- 2023: 482024: 6025%
Dr. Wijesinghe compared with the California median for anesthesiologists, 2024
- Dr. Wijesinghe
- California median
- Medicare services
- 164vs 722.3 times
- Medicare patients
- 264vs 14385% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Wijesinghe'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Isuru Udayanga Wijesinghe treated 264 Medicare patients in 2024, average age 74
CMS counts 264 Medicare patients who saw Dr. Wijesinghe in 2024. The largest group is 65 to 74, with 115 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.83, 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. Wijesinghe's median patient age at 72, with 47% women.
Dr. Wijesinghe's Medicare patients by age, 2024
Dr. Wijesinghe's Medicare patients by sex, 2024
- Women12447%
- Men14053%
Chronic conditions among Dr. Wijesinghe's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Diabetes37%
- Atrial fibrillation36%
- Ischemic heart disease36%
- Mood disorders31%
- Chronic kidney disease29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wijesinghe's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Isuru Udayanga Wijesinghe scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Wijesinghe for performance year 2024, reported as part of a group. Dr. Wijesinghe accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Wijesinghe's MIPS scores, performance year 2024
- 85of 100Final score
- 70of 100Quality
- 40of 100Improvement Activities
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. Isuru Udayanga Wijesinghe received $580 in industry payments from 2017 to 2021
CMS Open Payments shows 11 general payments to Dr. Wijesinghe from 6 drug and device companies from 2017 to 2021. Food and beverage make up the largest share, 100% of the total. AcelRx Pharmaceuticals, Inc. paid the most, $265.
General payments to Dr. Wijesinghe by program year, 2017 to 2021
Companies that paid Dr. Wijesinghe the most, 2017 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Isuru Udayanga Wijesinghe'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) |
| 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) |
| 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. Isuru Udayanga Wijesinghe
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. Isuru Udayanga Wijesinghe's NPI number?
Dr. Isuru Udayanga Wijesinghe's NPI number is 1275977019. It was assigned on April 23, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Isuru Udayanga Wijesinghe?
Dr. Isuru Udayanga Wijesinghe is an anesthesiologist in Oxnard, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Isuru Udayanga Wijesinghe practice?
Dr. Wijesinghe practices at 1600 N Rose Ave, Oxnard, CA 93030. Dr. Wijesinghe's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. Dmand AI also links Dr. Wijesinghe to 1 hospital and 1 medical group.
What is Dr. Isuru Udayanga Wijesinghe's office phone number?
The practice phone on file for Dr. Wijesinghe is (805) 988-2500.
What is Dr. Isuru Udayanga Wijesinghe's medical license number?
Dr. Wijesinghe holds New York license 293869, one of the licenses on file in 2 states.
Which states has Dr. Isuru Udayanga Wijesinghe been licensed in?
Dmand AI has state licenses on file for Dr. Wijesinghe in New York and California.
Which hospitals is Dr. Isuru Udayanga Wijesinghe affiliated with?
Dr. Wijesinghe practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California. Dmand AI links Dr. Wijesinghe to 1 more hospital.
What medical group is Dr. Isuru Udayanga Wijesinghe part of?
Dr. Wijesinghe is linked to Palm Spring Anesthesia. Dmand AI links Dr. Wijesinghe to 1 more medical group.
Does Dr. Isuru Udayanga Wijesinghe accept Medicare?
Yes. CMS data shows Dr. Wijesinghe billed Medicare for 164 services in 2024, and Dr. Wijesinghe accepts Medicare assignment.
What is Dr. Isuru Udayanga Wijesinghe's MIPS score?
Dr. Wijesinghe's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Isuru Udayanga Wijesinghe see?
CMS counts 264 Medicare patients who saw Dr. Wijesinghe in 2024, with an average age of 74.
What services does Dr. Isuru Udayanga Wijesinghe bill to Medicare?
In 2024, Dr. Wijesinghe's most billed Medicare services were surgery: heart and blood vessels (36620), anesthesia (00142) and anesthesia (01926).
Has Dr. Isuru Udayanga Wijesinghe received payments from drug or device companies?
CMS Open Payments shows $580 in general payments to Dr. Wijesinghe from 6 companies from 2017 to 2021. The largest total came from AcelRx Pharmaceuticals, Inc.
How long has Dr. Isuru Udayanga Wijesinghe been practicing?
Dr. Wijesinghe graduated from medical school in 2013, 13 years ago.
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