Dr. Leon Douglas Williams, MD
- Medicare services, 2019
- 28
- Part D claims, 2024
- 3,171
- Hospital affiliations
- 1
- Medical groups
- 2
- Insurance carriers
- 3
- Practice address
- 6600 Bruceville Road, Sacramento, CA 95823
- Practice phone
- Call (916) 688-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Williams' professional email, personal email and mobile number
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Dr. Leon Douglas Williams is a family medicine physician in Sacramento, California
Dr. Williams practices at Kaiser Permanente South Sacramento Medical Center in Sacramento, California, part of Kaiser Permanente.
Dr. Williams' NPI, 1386677102, was assigned on July 7, 2006. Dr. Williams graduated from University of Toledo College of Medicine and Life Sciences in 2004. Dr. Williams' Louisiana license number on file is 200787.
- NPI
- 1386677102NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981795739
- NPI enumeration date
- July 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 688-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Leon Douglas Williams practices at Kaiser Permanente South Sacramento Medical Center in Sacramento, California
Dr. Williams' primary practice is Kaiser Permanente South Sacramento Medical Center, at 6600 Bruceville Road, Sacramento, CA 95823 in Sacramento County. The practice phone is (916) 688-2000.
- Kaiser Permanente South Sacramento Medical Center6600 Bruceville Road, Sacramento, CA 95823 · Sacramento CountyPhone(916) 688-2000
Source: Dmand AI Affiliation Data
Dr. Leon Douglas Williams is affiliated with 1 site of care and 2 medical groups
Dr. Williams' primary practice is Kaiser Permanente South Sacramento Medical Center in Sacramento, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Williams to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Leon Douglas 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 |
|---|---|
| Kaiser Permanente South Sacramento Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Leon Douglas Williams is one of 15,680 family medicine physicians in California
Family medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Williams is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Williams' licenses on file in 2 states: Louisiana and California.
Specialties and state licenses
- Family medicine, LouisianaPrimary
- California license
Clinical focus
Dmand AI lists chronic diabetes, chronic kidney disease and muscle pain, fibromyalgia, and limb pain among the conditions Dr. Williams treats.
Family medicine physicians near Dr. Williams
Counts of family medicine physicians 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. Leon Douglas Williams billed Medicare for 28 services in 2019
CMS data shows 28 Medicare services from Dr. Williams across 1 procedure code in 2019, all of them office visits. Medicare paid $1,971 for them. Every service was in an office.
Dr. Williams' Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 232019: 2822%
Dr. Williams compared with the California median for family medicine physicians, 2019
- Dr. Williams
- California median
- Medicare services
- 28vs 24689% below
- Part D claims
- 2,615vs 8333.1 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2019
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 family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leon Douglas Williams' patients have a median age of 51
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 51, with 47% 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 51
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Leon Douglas Williams wrote 3,171 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 3,171 Medicare Part D claims for 443 patients. 91% of them were for generic drugs. CMS names the drug for 2,615 of them, across 75 drugs with 11 or more claims each, at $107,481 in total drug cost. In 2023, CMS named 4,894 claims across 100 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic2,873 claims91%
- Brand-name284 claims9%
- Other14 claims0%
Dr. Williams' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Williams' Part D claims, 2024
- Opioids7%211 of 3,171 claims
- Antibiotics2%62 of 3,171 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,8942024: 2,61547%
Drugs named by CMS: 75 in 2024, 100 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Leon Douglas 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. Leon Douglas Williams graduated from University of Toledo College of Medicine and Life Sciences
Dr. Williams graduated from University of Toledo College of Medicine and Life Sciences in 2004.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Leon Douglas Williams accepts plans from 3 insurance carriers
Dr. Williams is in network with 3 carriers, including Elevance, Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Elevance
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Williams accepts, by number of carriers
- EPO2
- HMO2
- Medicare2
- POS2
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Leon Douglas 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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| 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. Leon Douglas 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. Leon Douglas Williams' NPI number?
Dr. Leon Douglas Williams' NPI number is 1386677102. It was assigned on July 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Leon Douglas Williams?
Dr. Leon Douglas Williams is a family medicine physician in Sacramento, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Leon Douglas Williams practice?
Dr. Williams practices at 6600 Bruceville Road, Sacramento, CA 95823. Dr. Williams' primary practice is Kaiser Permanente South Sacramento Medical Center in Sacramento, California, part of Kaiser Permanente. Dmand AI also links Dr. Williams to 1 medical group.
What is Dr. Leon Douglas Williams' office phone number?
The practice phone on file for Dr. Williams is (916) 688-2000.
What is Dr. Leon Douglas Williams' medical license number?
Dr. Williams' Louisiana license number on file is 200787, one of the licenses on file in 2 states.
Which states has Dr. Leon Douglas Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in Louisiana (2006 to 2017) and California (2010 to 2026).
Which hospitals is Dr. Leon Douglas Williams affiliated with?
Dr. Williams practices at Kaiser Permanente South Sacramento Medical Center in Sacramento, California.
What medical group is Dr. Leon Douglas Williams part of?
Dr. Williams is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. Leon Douglas Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 28 services in 2019, and Dr. Williams accepts Medicare assignment.
Is Dr. Leon Douglas Williams board certified?
Yes. Dr. Williams is board certified in family medicine by the American Board of Family Medicine.
Show 5 more questionsShow fewer questions
What services does Dr. Leon Douglas Williams bill to Medicare?
In 2019, Dr. Williams' most billed Medicare services were office visit, established patient (99214).
Where did Dr. Leon Douglas Williams go to medical school?
Dr. Williams graduated from University of Toledo College of Medicine and Life Sciences in 2004.
What drugs does Dr. Leon Douglas Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Amlodipine Besylate, Hydrocodone-Acetaminophen and Atorvastatin Calcium.
How long has Dr. Leon Douglas Williams been practicing?
Dr. Williams graduated from medical school in 2004, 22 years ago.
What insurance does Dr. Leon Douglas Williams accept?
Dr. Williams is in network with 3 carriers, including Elevance, Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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