Dr. William Arnold, MD
- Medicare services, 2016
- 88,192
- Part D claims, 2019
- 28
- Industry payments
- $10,614
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 4709 Golf Rd Suite 300 Suite 300, Skokie, IL 60076-1233
- Practice phone
- Call (847) 869-7233
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Arnold Arthritis & Rheumatology SC
Multi-specialty group site · Skokie, Illinois
Find Dr. Arnold'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 Arnold is a rheumatologist in Arlington Heights, Illinois
Dr. Arnold practices at Arnold Arthritis & Rheumatology SC in Skokie, Illinois.
Dr. Arnold's NPI, 1457305823, was assigned on May 20, 2006. Dr. Arnold holds Illinois license 036-043731.
- NPI
- 1457305823NPI Registry (opens in a new tab)
- NPI enumeration date
- May 20, 2006
- NPI status
- Active
- Practice phone
- (847) 869-7233
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Arnold practices in Skokie and Arlington Heights
Dr. Arnold's primary practice is Arnold Arthritis & Rheumatology SC, at 4709 Golf Rd Suite 300 Suite 300, Skokie, IL 60076-1233. The practice phone is (847) 869-7233. The NPI Registry lists Dr. Arnold's practice address as 800 W Central Rd, Arlington Heights, IL 60005.
- Arnold Arthritis & Rheumatology SCPrimary4709 Golf Rd Suite 300 Suite 300, Skokie, IL 60076-1233Phone(847) 869-7233
- NPI Registry address800 W Central Rd, Arlington Heights, IL 60005 · Cook CountyPhone(847) 869-7233
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. William Arnold is affiliated with 2 sites of care and 2 medical groups
Dr. Arnold's primary practice is Arnold Arthritis & Rheumatology SC in Skokie, Illinois. The medical group on file is Arnold Arthritis & Rheumatology. Dmand AI also links Dr. Arnold to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. William Arnold's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Arnold practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arnold Arthritis & Rheumatology SC | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Arnold is one of 285 rheumatologists in Illinois
Rheumatology is Dr. Arnold's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Arnold is licensed in Illinois.
Specialties and state licenses
- Rheumatology, IllinoisPrimary
Rheumatologists near Dr. Arnold
Counts of rheumatologists 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 Arnold billed Medicare for 88,192 services in 2016
CMS data shows 88,192 Medicare services from Dr. Arnold across 31 procedure codes in 2016. Medicare paid $983,059 for them. Every service was in an office.
Dr. Arnold's Medicare services by type, 2016
- Drugs given in the office84,949
- Tests and treatments1,434
- Office and hospital visits952
- Surgery523
- Imaging334
Dr. Arnold compared with the Illinois median for rheumatologists, 2016
- Dr. Arnold
- Illinois median
- Medicare services
- 88,192vs 98789.4 times
- Part D claims
- 28vs 1,07797% below
Medians across 290 rheumatologists in Illinois with Dmand AI profiles that report each measure.
Dr. Arnold's most billed Medicare procedure codes, 2016
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. Arnold?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Arnold and other rheumatologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Arnold's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Arnold's median patient age at 78, with 67% women.
Dr. Arnold's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. William Arnold wrote 28 Medicare Part D claims in 2019
In 2019, Dr. Arnold wrote 28 Medicare Part D claims. They cover 2 drugs, with $3,237 in total drug cost. In 2018, CMS named 125 claims across 6 drugs.
Dr. Arnold's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 1252019: 2878%
Drugs named by CMS: 2 in 2019, 6 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William Arnold received $10,614 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Arnold from 6 drug and device companies from 2016 to 2025. Accredited education speaker fees make up the largest share, 91% of the total. Pfizer Inc. paid the most, $10,286. It also lists 3 research payments totaling $4,000 from 2016 to 2018.
General payments to Dr. Arnold by program year, 2016 to 2025
General payments to Dr. Arnold by kind, 2016 to 2025
- Accredited education speaker fees$9,64591%
- Travel and lodging$7367%
- Food and beverage$2322%
Companies that paid Dr. Arnold the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Arnold'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Arnold
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 Arnold's NPI number?
Dr. William Arnold's NPI number is 1457305823. It was assigned on May 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William Arnold?
Dr. William Arnold is a rheumatologist in Arlington Heights, Illinois. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. William Arnold practice?
Dr. Arnold practices at 4709 Golf Rd Suite 300 Suite 300, Skokie, IL 60076-1233. Dr. Arnold also practices at 800 W Central Rd, Arlington Heights, IL 60005. Dr. Arnold's primary practice is Arnold Arthritis & Rheumatology SC in Skokie, Illinois. Dmand AI also links Dr. Arnold to 1 group practice or clinic and 1 medical group.
What is Dr. William Arnold's office phone number?
The practice phone on file for Dr. Arnold is (847) 869-7233.
What is Dr. William Arnold's medical license number?
Dr. Arnold holds Illinois license 036-043731.
What medical group is Dr. William Arnold part of?
Dr. Arnold is linked to Arnold Arthritis & Rheumatology. Dmand AI links Dr. Arnold to 1 more medical group.
Does Dr. William Arnold accept Medicare?
Yes. CMS data shows Dr. Arnold billed Medicare for 88,192 services in 2016.
What services does Dr. William Arnold bill to Medicare?
In 2016, Dr. Arnold's most billed Medicare services were injected or infused drug (J0717), injected or infused drug (J1745) and injected or infused drug (J7325).
What drugs does Dr. William Arnold prescribe most?
In 2019 Medicare Part D data, Dr. Arnold's most prescribed drugs by claims were Hydroxychloroquine Sulfate and Methotrexate Sodium.
Has Dr. William Arnold received payments from drug or device companies?
CMS Open Payments shows $10,614 in general payments to Dr. Arnold from 6 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. William Arnold been practicing?
Dr. Arnold's NPI was assigned in 2006.
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