Dr. Sonja Nicole Loo, MD
- Medicare services, 2024
- 42
- Medicare patients, 2024
- 85
- Hospital affiliations
- 3
- Industry payments
- $1,211
- Medical groups
- 3
- Practice address
- 27700 Medical Center Rd, Mission Viejo, CA 92691
- Practice phone
- Call (949) 365-2447
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mission Hospital - Unit
Acute Care Hospital-Unit · Mission Viejo, California
Find Dr. Loo'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. Sonja Nicole Loo is an anesthesiologist in Mission Viejo, California
Dr. Loo practices at Mission Hospital - Unit in Mission Viejo, California.
Dr. Loo's NPI, 1952563108, was assigned on June 30, 2008. Dr. Loo graduated from Medical College Of Wisconsin in 2008. Dr. Loo holds California license A123220.
- NPI
- 1952563108NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618124892
- NPI enumeration date
- June 30, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 365-2447
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sonja Nicole Loo practices at Mission Hospital - Unit in Mission Viejo, California
Dr. Loo's primary practice is Mission Hospital - Unit, at 27700 Medical Center Rd, Mission Viejo, CA 92691 in Orange County. The practice phone is (949) 365-2447.
- Mission Hospital - Unit27700 Medical Center Rd, Mission Viejo, CA 92691 · Orange CountyPhone(949) 365-2447
Source: Dmand AI Affiliation Data
Dr. Sonja Nicole Loo is affiliated with 3 sites of care and 3 medical groups
Dr. Loo's primary practice is Mission Hospital - Unit in Mission Viejo, California. Dr. Loo is also affiliated with Providence Mission Hospital. The medical group on file is Mission Anesthesia Consultants. Dmand AI also links Dr. Loo to 1 more hospital and 2 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sonja Nicole Loo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Loo practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mission Hospital - Unit | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sonja Nicole Loo is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Loo's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Loo is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Loo's licenses on file in 2 states: California and Minnesota.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Minnesota license
Anesthesiologists near Dr. Loo
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. Sonja Nicole Loo billed Medicare for 42 services in 2024
CMS data shows 42 Medicare services from Dr. Loo across 3 procedure codes in 2024, for 85 Medicare patients. Medicare paid $4,905 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Loo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 132024: 42223%
Dr. Loo compared with the California median for anesthesiologists, 2024
- Dr. Loo
- California median
- Medicare services
- 42vs 7242% below
- Medicare patients
- 85vs 14341% below
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Loo'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. Loo and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sonja Nicole Loo treated 85 Medicare patients in 2024, average age 73
CMS counts 85 Medicare patients who saw Dr. Loo in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have high cholesterol, and 69% have high blood pressure. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Loo's median patient age at 67, with 61% women.
Dr. Loo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Loo's Medicare patients by sex, 2024
- Women4654%
- Men3946%
Chronic conditions among Dr. Loo's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis49%
- Ischemic heart disease28%
- Atrial fibrillation25%
- Osteoporosis24%
- Anxiety22%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Loo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Sonja Nicole Loo takes part in Medicare
Dr. Loo 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. Sonja Nicole Loo received $1,211 in industry payments from 2016 to 2019
CMS Open Payments shows 2 general payments to Dr. Loo from 2 drug and device companies from 2016 to 2019. Honoraria make up the largest share, 99% of the total. Edwards Lifesciences Corporation paid the most, $1,200.
General payments to Dr. Loo by program year, 2016 to 2019
General payments to Dr. Loo by kind, 2016 to 2019
- Honoraria$1,20099%
- Food and beverage$111%
Companies that paid Dr. Loo the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sonja Nicole Loo graduated from Medical College Of Wisconsin
Dr. Loo graduated from Medical College Of Wisconsin in 2008.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Sonja Nicole Loo accepts plans from 5 insurance carriers
Dr. Loo is in network with 5 carriers, including Medica, United Healthcare and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Medica
- United Healthcare
- CMS Medicare
- Elevance
- WI State Medicaid
Plan types Dr. Loo accepts, by number of carriers
- Medicare3
- HMO2
- PPO2
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Sonja Nicole Loo'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 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) |
| 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. Sonja Nicole Loo
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. Sonja Nicole Loo's NPI number?
Dr. Sonja Nicole Loo's NPI number is 1952563108. It was assigned on June 30, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Sonja Nicole Loo?
Dr. Sonja Nicole Loo is an anesthesiologist in Mission Viejo, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Sonja Nicole Loo practice?
Dr. Loo practices at 27700 Medical Center Rd, Mission Viejo, CA 92691. Dr. Loo's primary practice is Mission Hospital - Unit in Mission Viejo, California. Dmand AI also links Dr. Loo to 1 hospital and 2 medical groups.
What is Dr. Sonja Nicole Loo's office phone number?
The practice phone on file for Dr. Loo is (949) 365-2447.
What is Dr. Sonja Nicole Loo's medical license number?
Dr. Loo holds California license A123220, one of the licenses on file in 2 states.
Which states has Dr. Sonja Nicole Loo been licensed in?
Dmand AI has state licenses on file for Dr. Loo in California (2012 to 2026) and Minnesota (2012 to 2013).
Which hospitals is Dr. Sonja Nicole Loo affiliated with?
Dr. Loo is affiliated with Providence Mission Hospital. Dmand AI links Dr. Loo to 2 more hospitals.
What medical group is Dr. Sonja Nicole Loo part of?
Dr. Loo is linked to Mission Anesthesia Consultants. Dmand AI links Dr. Loo to 2 more medical groups.
Does Dr. Sonja Nicole Loo accept Medicare?
Yes. CMS data shows Dr. Loo billed Medicare for 42 services in 2024, and Dr. Loo accepts Medicare assignment.
How many Medicare patients does Dr. Sonja Nicole Loo see?
CMS counts 85 Medicare patients who saw Dr. Loo in 2024, with an average age of 73.
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Is Dr. Sonja Nicole Loo board certified?
Yes. Dr. Loo is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Sonja Nicole Loo bill to Medicare?
In 2024, Dr. Loo's most billed Medicare services were anesthesia (00731), anesthesia (00813) and anesthesia (00812).
Where did Dr. Sonja Nicole Loo go to medical school?
Dr. Loo graduated from Medical College Of Wisconsin in 2008.
Has Dr. Sonja Nicole Loo received payments from drug or device companies?
CMS Open Payments shows $1,211 in general payments to Dr. Loo from 2 companies from 2016 to 2019. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Sonja Nicole Loo been practicing?
Dr. Loo graduated from medical school in 2008, 18 years ago.
What insurance does Dr. Sonja Nicole Loo accept?
Dr. Loo is in network with 5 carriers, including Medica, United Healthcare and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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