Dr. Alan R. Williams, MD
- Medicare services, 2017
- 13
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 16
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 2025 Morse Ave, Sacramento, CA 95825
- Practice phone
- Call (209) 476-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Sacramento, 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. Alan R. Williams is a neurosurgeon in Sacramento, California
Dr. Williams practices at Permanente Medical Group Inc in Sacramento, California.
Dr. Williams' NPI, 1407934128, was assigned on November 1, 2006. Dr. Williams graduated from Albert Einstein College of Medicine in 1988. Dr. Williams' California license number on file is G67524.
- NPI
- 1407934128NPI Registry (opens in a new tab)
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Practice phone
- (209) 476-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Alan R. Williams practices at Permanente Medical Group Inc in Sacramento, California
Dr. Williams' primary practice is Permanente Medical Group Inc, at 2025 Morse Ave, Sacramento, CA 95825 in Sacramento County. The practice phone is (209) 476-2000.
- Permanente Medical Group Inc2025 Morse Ave, Sacramento, CA 95825 · Sacramento CountyPhone(209) 476-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alan R. Williams is affiliated with 2 sites of care and 1 medical group
Dr. Williams' primary practice is Permanente Medical Group Inc in Sacramento, California. Dr. Williams is also affiliated with Sacramento Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alan R. 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 |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Alan R. Williams is one of 846 neurosurgeons in California
Neurological surgery is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Williams is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Williams' licenses on file in 3 states: California, Texas and Maryland.
Specialties and state licenses
- Neurological surgery, CaliforniaPrimary
- Texas license
- Maryland license
Clinical focus
Dmand AI lists lower back pain among the conditions Dr. Williams treats.
Neurosurgeons near Dr. Williams
Counts of neurosurgeons 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. Alan R. Williams billed Medicare for 13 services in 2017
CMS data shows 13 Medicare services from Dr. Williams across 1 procedure code in 2017, for 13 Medicare patients. Medicare paid $388 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams compared with the California median for neurosurgeons, 2017
- Dr. Williams
- California median
- Medicare services
- 13vs 21694% below
- Medicare patients
- 13vs 15492% below
Medians across 679 neurosurgeons in California with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2017
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 neurosurgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alan R. Williams treated 13 Medicare patients in 2024, average age 72
CMS counts 13 Medicare patients who saw Dr. Williams in 2024. The largest group is under 65, with 0 patients. Their average risk score is 1.56, 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. Williams' median patient age at 66, with 88% women.
Dr. Williams' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
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 66
Patient panel by sex, all payers
- Women88%
- Men12%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alan R. Williams wrote 16 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 16 Medicare Part D claims for 11 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Dr. Williams' Part D claims, 2024
- Opioids75%12 of 16 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Alan R. Williams graduated from Albert Einstein College of Medicine
Dr. Williams graduated from Albert Einstein College of Medicine in 1988.
- Medical school
- Board certified in neurological surgery
Source: Dmand AI Professional Profile Data
Dr. Alan R. Williams accepts plans from 2 insurance carriers
Dr. Williams is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Williams accepts, by number of carriers
- EPO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Alan R. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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. Alan R. 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. Alan R. Williams' NPI number?
Dr. Alan R. Williams' NPI number is 1407934128. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Alan R. Williams?
Dr. Alan R. Williams is a neurosurgeon in Sacramento, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Alan R. Williams practice?
Dr. Williams practices at 2025 Morse Ave, Sacramento, CA 95825. Dr. Williams' primary practice is Permanente Medical Group Inc in Sacramento, California.
What is Dr. Alan R. Williams' office phone number?
The practice phone on file for Dr. Williams is (209) 476-2000.
What is Dr. Alan R. Williams' medical license number?
Dr. Williams' California license number on file is G67524, one of the licenses on file in 3 states.
Which states has Dr. Alan R. Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in California (1989 to 2025), Texas (1996 to 2002) and Maryland (1995 to 1997).
Which hospitals is Dr. Alan R. Williams affiliated with?
Dr. Williams is affiliated with Sacramento Medical Center.
What medical group is Dr. Alan R. Williams part of?
Dr. Williams is linked to The Permanente Medical Group, Inc.
Does Dr. Alan R. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 13 services in 2017.
How many Medicare patients does Dr. Alan R. Williams see?
CMS counts 13 Medicare patients who saw Dr. Williams in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
Is Dr. Alan R. Williams board certified?
Yes. Dr. Williams is board certified in neurological surgery by the American Board of Neurological Surgery.
What services does Dr. Alan R. Williams bill to Medicare?
In 2017, Dr. Williams' most billed Medicare services were hospital inpatient care (99231).
Where did Dr. Alan R. Williams go to medical school?
Dr. Williams graduated from Albert Einstein College of Medicine in 1988.
How long has Dr. Alan R. Williams been practicing?
Dr. Williams graduated from medical school in 1988, 38 years ago.
What insurance does Dr. Alan R. Williams accept?
Dr. Williams is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to neurological surgery practices?
See neurosurgeons in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card