Dr. William Slikker III, MD
- Part D claims, 2024
- 90
- Publications
- 19
- Hospital affiliations
- 1
- Industry payments
- $269
- Medical group
- 1
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Slikker'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 Slikker III is an orthopedic surgeon in Richmond, California
Dr. Slikker practices at Richmond Medical Center in Richmond, California.
Dr. Slikker's NPI, 1598077877, was assigned on July 2, 2010. Dr. Slikker graduated from Stanford University School Of Medicine in 2010. Dr. Slikker's Illinois license number on file is 125058699.
- NPI
- 1598077877NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931417672
- NPI enumeration date
- July 2, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Slikker III practices at Richmond Medical Center in Richmond, California
Dr. Slikker's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William Slikker III is affiliated with 2 sites of care and 1 medical group
Dr. Slikker's primary practice is Richmond Medical Center in Richmond, California. Dr. Slikker is also affiliated with Rush University 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. William Slikker III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Slikker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | 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 Slikker III is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Slikker's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Slikker is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Slikker's licenses on file in 3 states: Illinois, California and Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, IllinoisPrimary
- California license
- Massachusetts license
Clinical focus
Dmand AI lists hand joint or tendon inflammation among the conditions Dr. Slikker treats.
Orthopedic surgeons near Dr. Slikker
Counts of orthopedic surgeons 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 Slikker III's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Dr. Slikker's median patient age at 50, with 60% women.
Dr. Slikker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women60%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. William Slikker III wrote 90 Medicare Part D claims in 2024
In 2024, Dr. Slikker wrote 90 Medicare Part D claims for 71 patients. 100% of them were for generic drugs. CMS names the drug for 63 of them, across 1 drug with 11 or more claims each, at $588 in total drug cost. In 2023, CMS named 165 claims across 2 drugs.
Dr. Slikker's 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. Slikker's Part D claims, 2024
- Opioids76%68 of 90 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: 1652024: 6362%
Drugs named by CMS: 1 in 2024, 2 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. William Slikker III takes part in Medicare
Dr. Slikker 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 Slikker III has 19 publications on record
Dmand AI links 19 papers to Dr. Slikker, published from 2012 to 2019. 2014 was the busiest year, with 4. The most frequent topics are Magnetic Resonance Imaging, Hip Joint and Neurotoxicity Syndromes. Dr. Slikker has published most often in Knee Surg Sports Traumatol Arthrosc. Dr. Slikker's most frequent co-authors are Jonathan Mordechai Frank, MD, John J. Fernandez, MD and Joshua David Harris, MD.
Dr. Slikker's papers by year, 2012 to 2019
Topics Dr. Slikker writes about most
- Magnetic Resonance Imaging
- Hip Joint
- Neurotoxicity Syndromes
- Arthrodesis
- Arthroscopy
- Behavior, Animal
- Carpal Bones
- Central Nervous System Stimulants
Dr. Slikker's most frequent co-authors
- Jonathan Mordechai Frank, MD5 shared papers
- John J. Fernandez, MD3 shared papers
- Joshua David Harris, MD3 shared papers
Recent publications by Dr. Slikker
Exp Biol Med (Maywood)
Plast Reconstr Surg Glob Open
See who Dr. Slikker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Slikker works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William Slikker III received $269 in industry payments from 2019 to 2025
CMS Open Payments shows 3 general payments to Dr. Slikker from 3 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Skeletal Dynamics LLC paid the most, $102.
General payments to Dr. Slikker by program year, 2019 to 2025
Companies that paid Dr. Slikker the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Slikker III graduated from Stanford University School Of Medicine
Dr. Slikker graduated from Stanford University School Of Medicine in 2010.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. William Slikker III accepts plans from 3 insurance carriers
Dr. Slikker is in network with 3 carriers, including Kaiser Permanente, CMS Medicare and RI State Medicaid. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
- RI State Medicaid
Plan types Dr. Slikker accepts, by number of carriers
- EPO1
- HMO1
- Medicaid1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. William Slikker III'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Slikker III
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 Slikker III's NPI number?
Dr. William Slikker III's NPI number is 1598077877. It was assigned on July 2, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. William Slikker III?
Dr. William Slikker III is an orthopedic surgeon in Richmond, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. William Slikker III practice?
Dr. Slikker practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Slikker's primary practice is Richmond Medical Center in Richmond, California.
What is Dr. William Slikker III's office phone number?
The practice phone on file for Dr. Slikker is (510) 307-1555.
What is Dr. William Slikker III's medical license number?
Dr. Slikker's Illinois license number on file is 125058699, one of the licenses on file in 3 states.
Which states has Dr. William Slikker III been licensed in?
Dmand AI has state licenses on file for Dr. Slikker in Illinois (2013 to 2015), California (2016 to 2025) and Massachusetts (2015 to 2017).
Which hospitals is Dr. William Slikker III affiliated with?
Dr. Slikker is affiliated with Rush University Medical Center.
What medical group is Dr. William Slikker III part of?
Dr. Slikker is linked to The Permanente Medical Group, Inc.
Does Dr. William Slikker III accept Medicare?
Yes. CMS lists Dr. Slikker as accepting Medicare assignment.
Is Dr. William Slikker III board certified?
Yes. Dr. Slikker is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
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Where did Dr. William Slikker III go to medical school?
Dr. Slikker graduated from Stanford University School Of Medicine in 2010.
What drugs does Dr. William Slikker III prescribe most?
In 2024 Medicare Part D data, Dr. Slikker's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. William Slikker III received payments from drug or device companies?
CMS Open Payments shows $269 in general payments to Dr. Slikker from 3 companies from 2019 to 2025. The largest total came from Skeletal Dynamics LLC.
How long has Dr. William Slikker III been practicing?
Dr. Slikker graduated from medical school in 2010, 16 years ago.
Does Dr. William Slikker III do research?
Dmand AI links 19 publications to Dr. Slikker, published from 2012 to 2019.
Who does Dr. William Slikker III publish with?
Dr. Slikker's most frequent co-authors are Jonathan Mordechai Frank, MD (5 shared papers), John J. Fernandez, MD (3 shared papers) and Joshua David Harris, MD (3 shared papers).
What insurance does Dr. William Slikker III accept?
Dr. Slikker is in network with 3 carriers, including Kaiser Permanente, CMS Medicare and RI State Medicaid. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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