Dr. William L. Ring, MD
- Medicare services, 2024
- 320
- Medicare patients, 2024
- 104
- Hospital affiliations
- 2
- Industry payments
- $265
- Medical group
- 1
- Practice address
- 9888 Genesee Avenue, La Jolla, CA 92037
- Practice phone
- Call (858) 626-4123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ring'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. William L. Ring is a hospitalist in La Jolla, California
Dr. Ring practices at Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health.
Dr. Ring's NPI, 1407811003, was assigned on April 18, 2006. Dr. Ring graduated from University of Tennessee Health Science Center College of Medicine - Memphis in 1986. Dr. Ring's California license number on file is G69579.
- NPI
- 1407811003NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284708629
- NPI enumeration date
- April 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (858) 626-4123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William L. Ring practices at Scripps Memorial Hospital La Jolla in La Jolla, California
Dr. Ring's primary practice is Scripps Memorial Hospital La Jolla, at 9888 Genesee Avenue, La Jolla, CA 92037 in San Diego County. The practice phone is (858) 626-4123.
- Scripps Memorial Hospital La Jolla9888 Genesee Avenue, La Jolla, CA 92037 · San Diego CountyPhone(858) 626-4123
Source: Dmand AI Affiliation Data
Dr. William L. Ring is affiliated with 2 sites of care and 1 medical group
Dr. Ring's primary practice is Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health. Dr. Ring is also affiliated with Scripps Green Hospital. The medical group on file is Scripps Clinic Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William L. Ring's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ring practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Memorial Hospital La Jolla | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William L. Ring is one of 3,186 hospitalists in California
Hospitalist is Dr. Ring's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Ring is board certified in critical care medicine by the American Board of Internal Medicine. Dmand AI has Dr. Ring's licenses on file in 3 states: California, Nevada and Tennessee.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
- Nevada license
- Tennessee license
Hospitalists near Dr. Ring
Counts of hospitalists 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. William L. Ring billed Medicare for 320 services in 2024
CMS data shows 320 Medicare services from Dr. Ring across 4 procedure codes in 2024, for 104 Medicare patients. Medicare paid $44,613 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ring's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2372024: 32035%
Dr. Ring compared with the California median for hospitalists, 2024
- Dr. Ring
- California median
- Medicare services
- 320vs 43026% below
- Medicare patients
- 104vs 20148% below
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Ring'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. Ring and other hospitalists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William L. Ring treated 104 Medicare patients in 2024, average age 77
CMS counts 104 Medicare patients who saw Dr. Ring in 2024. The largest group is 75 to 84, with 54 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.30, 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. Ring's median patient age at 67, with 44% women.
Dr. Ring's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ring's Medicare patients by sex, 2024
- Women5452%
- Men5048%
Chronic conditions among Dr. Ring's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Anxiety50%
- Ischemic heart disease50%
- Heart failure46%
- Chronic kidney disease44%
- Mood disorders43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ring'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
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. William L. Ring takes part in Medicare
Dr. Ring 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. William L. Ring received $265 in industry payments from 2016 to 2018
CMS Open Payments shows 7 general payments to Dr. Ring from 5 drug and device companies from 2016 to 2018. Consulting fees make up the largest share, 57% of the total. Merck Sharp & Dohme Corporation paid the most, $150.
General payments to Dr. Ring by program year, 2016 to 2018
General payments to Dr. Ring by kind, 2016 to 2018
- Consulting fees$15057%
- Food and beverage$11543%
Companies that paid Dr. Ring the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William L. Ring graduated from University of Tennessee Health Science Center College of Medicine - Memphis
Dr. Ring graduated from University of Tennessee Health Science Center College of Medicine - Memphis in 1986.
- Medical school
- Board certified in critical care medicine
Source: Dmand AI Professional Profile Data
Dr. William L. Ring accepts plans from 6 insurance carriers
Dr. Ring is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Ring accepts, by number of carriers
- Medicare6
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. William L. Ring'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. William L. Ring
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. William L. Ring's NPI number?
Dr. William L. Ring's NPI number is 1407811003. It was assigned on April 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William L. Ring?
Dr. William L. Ring is a hospitalist in La Jolla, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. William L. Ring practice?
Dr. Ring practices at 9888 Genesee Avenue, La Jolla, CA 92037. Dr. Ring's primary practice is Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health.
What is Dr. William L. Ring's office phone number?
The practice phone on file for Dr. Ring is (858) 626-4123.
What is Dr. William L. Ring's medical license number?
Dr. Ring's California license number on file is G69579, one of the licenses on file in 3 states.
Which states has Dr. William L. Ring been licensed in?
Dmand AI has state licenses on file for Dr. Ring in California (1990 to 2025), Nevada (1989 to 1995) and Tennessee (1987 to 1990).
Which hospitals is Dr. William L. Ring affiliated with?
Dr. Ring practices at Scripps Memorial Hospital La Jolla in La Jolla, California. Dr. Ring is also affiliated with Scripps Green Hospital.
What medical group is Dr. William L. Ring part of?
Dr. Ring is linked to Scripps Clinic Medical Group.
Does Dr. William L. Ring accept Medicare?
Yes. CMS data shows Dr. Ring billed Medicare for 320 services in 2024, and Dr. Ring accepts Medicare assignment.
How many Medicare patients does Dr. William L. Ring see?
CMS counts 104 Medicare patients who saw Dr. Ring in 2024, with an average age of 77.
Show 6 more questionsShow fewer questions
Is Dr. William L. Ring board certified?
Yes. Dr. Ring is board certified in critical care medicine by the American Board of Internal Medicine.
What services does Dr. William L. Ring bill to Medicare?
In 2024, Dr. Ring's most billed Medicare services were critical care (99291), hospital inpatient care (99233) and critical care (99292).
Where did Dr. William L. Ring go to medical school?
Dr. Ring graduated from University of Tennessee Health Science Center College of Medicine - Memphis in 1986.
Has Dr. William L. Ring received payments from drug or device companies?
CMS Open Payments shows $265 in general payments to Dr. Ring from 5 companies from 2016 to 2018. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. William L. Ring been practicing?
Dr. Ring graduated from medical school in 1986, 40 years ago.
What insurance does Dr. William L. Ring accept?
Dr. Ring is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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