Dr. Thomas G. Williams, MD
- Medicare services, 2021
- 121
- Affiliated sites
- 1
- State licenses
- 4
- Year NPI issued
- 2005
- Practice address
- 25495 Medical Center Dr, Ste 101, Murrieta, CA 92562
- Practice phone
- Call (951) 200-7777
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Temecula Valley Day Surgery - Murrieta
Surgery Center - Medicare-Certified · Murrieta, California
Find Dr. Williams' professional email, personal email and mobile number
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Dr. Thomas G. Williams is an anesthesiologist in Murrieta, California
Dr. Williams practices at Temecula Valley Day Surgery - Murrieta in Murrieta, California.
Dr. Williams' NPI, 1407849698, was assigned on August 24, 2005. Dr. Williams graduated from Stanford University School Of Medicine in 1977. Dr. Williams' California license number on file is G68083.
- NPI
- 1407849698NPI Registry (opens in a new tab)
- NPI enumeration date
- August 24, 2005
- NPI status
- Active
- Practice phone
- (951) 200-7777
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas G. Williams practices at Temecula Valley Day Surgery - Murrieta in Murrieta, California
Dr. Williams' primary practice is Temecula Valley Day Surgery - Murrieta, at 25495 Medical Center Dr, Ste 101, Murrieta, CA 92562. The practice phone is (951) 200-7777.
- Temecula Valley Day Surgery - Murrieta25495 Medical Center Dr, Ste 101, Murrieta, CA 92562Phone(951) 200-7777
Source: Dmand AI Affiliation Data
Dr. Thomas G. Williams is affiliated with 1 site of care
Dr. Williams' primary practice is Temecula Valley Day Surgery - Murrieta in Murrieta, California.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas G. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Temecula Valley Day Surgery - Murrieta | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas G. Williams is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Williams is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Williams' licenses on file in 4 states: California, Virginia, Florida and North Carolina.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Virginia license
- Florida license
- North Carolina license
Anesthesiologists near Dr. Williams
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. Thomas G. Williams billed Medicare for 121 services in 2021
CMS data shows 121 Medicare services from Dr. Williams across 1 procedure code in 2021. Medicare paid $13,046 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams' Medicare services by type, 2020 to 2021
- 2020
- 2021
- Anesthesia
- 2020: 1462021: 12117%
Dr. Williams compared with the California median for anesthesiologists, 2021
- Dr. Williams
- California median
- Medicare services
- 121vs 7268% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2021
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. Williams?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas G. Williams' patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 59, with 50% women.
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 59
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
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Dr. Thomas G. Williams graduated from Stanford University School Of Medicine
Dr. Williams graduated from Stanford University School Of Medicine in 1977.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas G. 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 Data |
| 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. Thomas G. 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. Thomas G. Williams' NPI number?
Dr. Thomas G. Williams' NPI number is 1407849698. It was assigned on August 24, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas G. Williams?
Dr. Thomas G. Williams is an anesthesiologist in Murrieta, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Thomas G. Williams practice?
Dr. Williams practices at 25495 Medical Center Dr, Ste 101, Murrieta, CA 92562. Dr. Williams' primary practice is Temecula Valley Day Surgery - Murrieta in Murrieta, California.
What is Dr. Thomas G. Williams' office phone number?
The practice phone on file for Dr. Williams is (951) 200-7777.
What is Dr. Thomas G. Williams' medical license number?
Dr. Williams' California license number on file is G68083, one of the licenses on file in 4 states.
Which states has Dr. Thomas G. Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in California (1990 to 2023), Virginia (1979 to 2004), Florida (1987 to 1998) and North Carolina (1984 to 1994).
Does Dr. Thomas G. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 121 services in 2021.
Is Dr. Thomas G. Williams board certified?
Yes. Dr. Williams is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Thomas G. Williams bill to Medicare?
In 2021, Dr. Williams' most billed Medicare services were anesthesia (00142).
Where did Dr. Thomas G. Williams go to medical school?
Dr. Williams graduated from Stanford University School Of Medicine in 1977.
How long has Dr. Thomas G. Williams been practicing?
Dr. Williams graduated from medical school in 1977, 49 years ago.
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