Dr. Symphorosa M. Williams, MD
- Medicare services, 2024
- 9,006
- Medicare patients, 2024
- 2,250
- Hospital affiliations
- 2
- Industry payments
- $466
- Medical group
- 1
- Practice address
- 15004 Innovation Drive, San Diego, CA 92128
- Practice phone
- Call (858) 605-7121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Scripps Clinic Rancho Bernardo Ambulatory Surgery Center
Surgery Center - Medicare-Certified · San Diego, California
Find Dr. Williams' 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. Symphorosa M. Williams is a diagnostic radiologist in San Diego, California
Dr. Williams practices at Scripps Clinic Rancho Bernardo Ambulatory Surgery Center in San Diego, California.
Dr. Williams' NPI, 1548233349, was assigned on February 10, 2006. Dr. Williams graduated from Yale School of Medicine in 1991. Dr. Williams holds California license G74881.
- NPI
- 1548233349NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850420332
- NPI enumeration date
- February 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 605-7121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Symphorosa M. Williams practices at Scripps Clinic Rancho Bernardo Ambulatory Surgery Center in San Diego, California
Dr. Williams' primary practice is Scripps Clinic Rancho Bernardo Ambulatory Surgery Center, at 15004 Innovation Drive, San Diego, CA 92128. The practice phone is (858) 605-7121.
- Scripps Clinic Rancho Bernardo Ambulatory Surgery Center15004 Innovation Drive, San Diego, CA 92128Phone(858) 605-7121
Source: Dmand AI Affiliation Data
Dr. Symphorosa M. Williams is affiliated with 4 sites of care and 1 medical group
Dr. Williams' primary practice is Scripps Clinic Rancho Bernardo Ambulatory Surgery Center in San Diego, California. Dr. Williams is also affiliated with Scripps Memorial Hospital La Jolla. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. Williams to 1 more hospital and 1 group practice or clinic, 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. Symphorosa M. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Clinic Rancho Bernardo Ambulatory Surgery Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Symphorosa M. Williams is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Williams is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Williams' licenses on file in 3 states: California, Virginia and Pennsylvania.
Specialties and state licenses
- Diagnostic radiology, CaliforniaPrimary
- Virginia license
- Pennsylvania license
Diagnostic radiologists near Dr. Williams
Counts of diagnostic radiologists 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. Symphorosa M. Williams billed Medicare for 9,006 services in 2024
CMS data shows 9,006 Medicare services from Dr. Williams across 29 procedure codes in 2024, for 2,250 Medicare patients. Medicare paid $287,554 for them.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 2,6272024: 5,404106%
- Imaging
- 2023: 3,0002024: 3,58319%
- Surgery
- 2023: 132024: 1946%
- Tests and treatments
- 2023: 162024: 0100%
Where Dr. Williams' Medicare services took place, 2024
- In an office8,30592%
- In a facility7018%
Dr. Williams compared with the California median for diagnostic radiologists, 2024
- Dr. Williams
- California median
- Medicare services
- 9,006vs 2,2813.9 times
- Medicare patients
- 2,250vs 1,34667% above
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Williams' 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. Williams and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Symphorosa M. Williams treated 2,250 Medicare patients in 2024, average age 74
CMS counts 2,250 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 1,279 patients. 73% of them have high cholesterol, and 53% have high blood pressure. 4% are also on Medicaid. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 53, with 83% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women2,05291%
- Men1989%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High cholesterol73%
- High blood pressure53%
- Arthritis47%
- Osteoporosis30%
- Mood disorders21%
- Anxiety20%
- Cancer19%
- Depression18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women83%
- Men16%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Symphorosa M. Williams takes part in Medicare
Dr. Williams 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. Symphorosa M. Williams received $466 in industry payments from 2016 to 2025
CMS Open Payments shows 14 general payments to Dr. Williams from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $144.
General payments to Dr. Williams by program year, 2016 to 2025
Companies that paid Dr. Williams 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. Symphorosa M. Williams graduated from Yale School of Medicine
Dr. Williams graduated from Yale School of Medicine in 1991.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Dr. Symphorosa M. Williams accepts plans from 3 insurance carriers
Dr. Williams is in network with 3 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Williams accepts, by number of carriers
- Medicare2
- EPO1
- HMO1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Symphorosa M. Williams'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) |
| 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. Symphorosa M. Williams
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. Symphorosa M. Williams' NPI number?
Dr. Symphorosa M. Williams' NPI number is 1548233349. It was assigned on February 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Symphorosa M. Williams?
Dr. Symphorosa M. Williams is a diagnostic radiologist in San Diego, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Symphorosa M. Williams practice?
Dr. Williams practices at 15004 Innovation Drive, San Diego, CA 92128. Dr. Williams' primary practice is Scripps Clinic Rancho Bernardo Ambulatory Surgery Center in San Diego, California. Dmand AI also links Dr. Williams to 1 hospital and 1 group practice or clinic.
What is Dr. Symphorosa M. Williams' office phone number?
The practice phone on file for Dr. Williams is (858) 605-7121.
What is Dr. Symphorosa M. Williams' medical license number?
Dr. Williams holds California license G74881, one of the licenses on file in 3 states.
Which states has Dr. Symphorosa M. Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in California (1992 to 2026), Virginia (1999 to 2018) and Pennsylvania (1999 to 2006).
Which hospitals is Dr. Symphorosa M. Williams affiliated with?
Dr. Williams is affiliated with Scripps Memorial Hospital La Jolla. Dmand AI links Dr. Williams to 1 more hospital.
What medical group is Dr. Symphorosa M. Williams part of?
Dr. Williams is linked to Scripps Clinic Medical Group.
Does Dr. Symphorosa M. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 9,006 services in 2024, and Dr. Williams accepts Medicare assignment.
How many Medicare patients does Dr. Symphorosa M. Williams see?
CMS counts 2,250 Medicare patients who saw Dr. Williams in 2024, with an average age of 74.
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Is Dr. Symphorosa M. Williams board certified?
Yes. Dr. Williams is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Symphorosa M. Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were medical supplies or transport (A9575), radiation oncology (77067) and radiation oncology (77063).
Where did Dr. Symphorosa M. Williams go to medical school?
Dr. Williams graduated from Yale School of Medicine in 1991.
Has Dr. Symphorosa M. Williams received payments from drug or device companies?
CMS Open Payments shows $466 in general payments to Dr. Williams from 10 companies from 2016 to 2025. The largest total came from Hologic Inc.
How long has Dr. Symphorosa M. Williams been practicing?
Dr. Williams graduated from medical school in 1991, 35 years ago.
What insurance does Dr. Symphorosa M. Williams accept?
Dr. Williams is in network with 3 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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