Dr. William D. Chaplin, DO
- Medicare services, 2023
- 12
- Medicare patients, 2024
- 29
- Hospital affiliations
- 1
- Industry payments
- $77
- Medical group
- 1
- Practice address
- 100 East Lefevre Road, Sterling, IL 61081
- Practice phone
- Call (815) 625-0400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chaplin'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 D. Chaplin is an anesthesiologist in Sterling, Illinois
Dr. Chaplin practices at CGH Medical Center in Sterling, Illinois, part of City of Sterling.
Dr. Chaplin's NPI, 1619359940, was assigned on June 23, 2015. Dr. Chaplin holds Illinois license 036150062.
- NPI
- 1619359940NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416246673
- NPI enumeration date
- June 23, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 625-0400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William D. Chaplin practices at CGH Medical Center in Sterling, Illinois
Dr. Chaplin's primary practice is CGH Medical Center, at 100 East Lefevre Road, Sterling, IL 61081 in Whiteside County. The practice phone is (815) 625-0400.
- CGH Medical Center100 East Lefevre Road, Sterling, IL 61081 · Whiteside CountyPhone(815) 625-0400
Source: Dmand AI Affiliation Data
Dr. William D. Chaplin is affiliated with 2 sites of care and 1 medical group
Dr. Chaplin's primary practice is CGH Medical Center in Sterling, Illinois, part of City of Sterling. The medical group on file is CGH Medical Center. Dmand AI also links Dr. Chaplin to 1 more group practice or clinic, named with a free account. Dr. Chaplin's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William D. Chaplin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chaplin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CGH Medical Center | 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 City of Sterling and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William D. Chaplin is one of 1,887 anesthesiologists in Illinois
Anesthesiology is Dr. Chaplin's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Chaplin is licensed in Illinois.
Specialties and state licenses
- Anesthesiology, IllinoisPrimary
Anesthesiologists near Dr. Chaplin
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. William D. Chaplin billed Medicare for 12 services in 2023
CMS data shows 12 Medicare services from Dr. Chaplin across 1 procedure code in 2023, for 29 Medicare patients. Medicare paid $265 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chaplin's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Imaging
- 2022: 182023: 1233%
Dr. Chaplin compared with the Illinois median for anesthesiologists, 2023
- Dr. Chaplin
- Illinois median
- Medicare services
- 12vs 9187% below
- Medicare patients
- 29vs 15782% below
Medians across 1,742 anesthesiologists in Illinois with Dmand AI profiles that report each measure.
Dr. Chaplin's most billed Medicare procedure codes, 2023
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. Chaplin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chaplin and other anesthesiologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William D. Chaplin treated 29 Medicare patients in 2024, average age 75
CMS counts 29 Medicare patients who saw Dr. Chaplin in 2024. The largest group is 75 to 84, with 11 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.65, 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. Chaplin's median patient age at 71, with 58% women.
Dr. Chaplin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chaplin's Medicare patients by sex, 2024
- Women1759%
- Men1241%
Chronic conditions among Dr. Chaplin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Diabetes45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chaplin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. William D. Chaplin takes part in Medicare
Dr. Chaplin 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)
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. William D. Chaplin received $77 in industry payments from 2021 to 2025
CMS Open Payments shows 5 general payments to Dr. Chaplin from 3 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $39.
General payments to Dr. Chaplin by program year, 2021 to 2025
Companies that paid Dr. Chaplin the most, 2021 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 D. Chaplin'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 DataMedicare Physician & Other Practitioners - 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) |
| 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 D. Chaplin
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 D. Chaplin's NPI number?
Dr. William D. Chaplin's NPI number is 1619359940. It was assigned on June 23, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. William D. Chaplin?
Dr. William D. Chaplin is an anesthesiologist in Sterling, Illinois. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. William D. Chaplin practice?
Dr. Chaplin practices at 100 East Lefevre Road, Sterling, IL 61081. Dr. Chaplin's primary practice is CGH Medical Center in Sterling, Illinois, part of City of Sterling. Dmand AI also links Dr. Chaplin to 1 group practice or clinic.
What is Dr. William D. Chaplin's office phone number?
The practice phone on file for Dr. Chaplin is (815) 625-0400.
What is Dr. William D. Chaplin's medical license number?
Dr. Chaplin holds Illinois license 036150062.
Which hospitals is Dr. William D. Chaplin affiliated with?
Dr. Chaplin practices at CGH Medical Center in Sterling, Illinois.
What medical group is Dr. William D. Chaplin part of?
Dr. Chaplin is linked to CGH Medical Center.
Does Dr. William D. Chaplin accept Medicare?
Yes. CMS data shows Dr. Chaplin billed Medicare for 12 services in 2023, and Dr. Chaplin accepts Medicare assignment.
How many Medicare patients does Dr. William D. Chaplin see?
CMS counts 29 Medicare patients who saw Dr. Chaplin in 2024, with an average age of 75.
What services does Dr. William D. Chaplin bill to Medicare?
In 2023, Dr. Chaplin's most billed Medicare services were ultrasound (76942).
Has Dr. William D. Chaplin received payments from drug or device companies?
CMS Open Payments shows $77 in general payments to Dr. Chaplin from 3 companies from 2021 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. William D. Chaplin been practicing?
Dr. Chaplin graduated from medical school in 2015, 11 years ago.
Selling to anesthesiology practices?
See anesthesiologists in Illinois 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