Dr. Chad J. Pendley, MD
- Medicare services, 2024
- 1,005
- Medicare patients, 2024
- 300
- Part D claims, 2024
- 245
- Hospital affiliations
- 1
- Medical groups
- 3
- Practice address
- 3815 Highland Avenue, Downers Grove, IL 60515
- Practice phone
- Call (630) 275-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Pendley's professional email, personal email and mobile number
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Dr. Chad J. Pendley is an internist in Downers Grove, Illinois
Dr. Pendley practices at Advocate Good Samaritan Hospital in Downers Grove, Illinois, part of Advocate Health.
Dr. Pendley's NPI, 1811258734, was assigned on June 6, 2012. Dr. Pendley graduated from Medical College of Wisconsin in 2012. Dr. Pendley holds Illinois license 036-136998.
- NPI
- 1811258734NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133432511
- NPI enumeration date
- June 6, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 275-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chad J. Pendley practices at Advocate Good Samaritan Hospital in Downers Grove, Illinois
Dr. Pendley's primary practice is Advocate Good Samaritan Hospital, at 3815 Highland Avenue, Downers Grove, IL 60515 in Du Page County. The practice phone is (630) 275-5900.
- Advocate Good Samaritan Hospital3815 Highland Avenue, Downers Grove, IL 60515 · Du Page CountyPhone(630) 275-5900
Source: Dmand AI Affiliation Data
Dr. Chad J. Pendley is affiliated with 3 sites of care and 3 medical groups
Dr. Pendley's primary practice is Advocate Good Samaritan Hospital in Downers Grove, Illinois, part of Advocate Health. The medical group on file is Dreyer Medical Clinic (Advocate Medical Group). Dmand AI also links Dr. Pendley to 2 more medical groups, 1 group practice or clinic and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Chad J. Pendley's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pendley practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advocate Good Samaritan Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chad J. Pendley is one of 5,652 internists in Illinois
Internal medicine is Dr. Pendley's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Pendley is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Pendley
Counts of internists 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. Chad J. Pendley billed Medicare for 1,005 services in 2024
CMS data shows 1,005 Medicare services from Dr. Pendley across 5 procedure codes in 2024, for 300 Medicare patients. Medicare paid $92,274 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Pendley's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8732024: 1,00515%
Dr. Pendley compared with the Illinois median for internists, 2024
- Dr. Pendley
- Illinois median
- Medicare services
- 1,005vs 56678% above
- Medicare patients
- 300vs 20844% above
- Part D claims
- 67vs 28476% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Pendley's most billed Medicare procedure codes, 2024
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chad J. Pendley treated 300 Medicare patients in 2024, average age 76
CMS counts 300 Medicare patients who saw Dr. Pendley in 2024. The largest group is 75 to 84, with 113 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 2.13, 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. Pendley's median patient age at 76, with 51% women.
Dr. Pendley's Medicare patients by age, 2024
Dr. Pendley's Medicare patients by sex, 2024
- Women15451%
- Men14649%
Chronic conditions among Dr. Pendley's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Ischemic heart disease56%
- Heart failure51%
- Chronic kidney disease49%
- Diabetes42%
- Mood disorders41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pendley's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Chad J. Pendley wrote 245 Medicare Part D claims in 2024
In 2024, Dr. Pendley wrote 245 Medicare Part D claims for 132 patients. 93% of them were for generic drugs. CMS names the drug for 67 of them, across 4 drugs with 11 or more claims each, at $480 in total drug cost. In 2023, CMS named 36 claims across 3 drugs.
Dr. Pendley's Part D claims by kind of drug, 2024
- Generic228 claims93%
- Brand-name and other17 claims7%
Dr. Pendley'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. Pendley's Part D claims, 2024
- Opioids13%32 of 245 claims
- Antibiotics16%40 of 245 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: 362024: 6786%
Drugs named by CMS: 4 in 2024, 3 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. Chad J. Pendley takes part in Medicare
Dr. Pendley 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. Chad J. Pendley graduated from Medical College of Wisconsin
Dr. Pendley graduated from Medical College of Wisconsin in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Chad J. Pendley'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) |
| 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 |
| 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. Chad J. Pendley
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. Chad J. Pendley's NPI number?
Dr. Chad J. Pendley's NPI number is 1811258734. It was assigned on June 6, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Chad J. Pendley?
Dr. Chad J. Pendley is an internist in Downers Grove, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Chad J. Pendley practice?
Dr. Pendley practices at 3815 Highland Avenue, Downers Grove, IL 60515. Dr. Pendley's primary practice is Advocate Good Samaritan Hospital in Downers Grove, Illinois, part of Advocate Health. Dmand AI also links Dr. Pendley to 2 medical groups, 1 group practice or clinic and 1 hospice.
What is Dr. Chad J. Pendley's office phone number?
The practice phone on file for Dr. Pendley is (630) 275-5900.
What is Dr. Chad J. Pendley's medical license number?
Dr. Pendley holds Illinois license 036-136998.
Which hospitals is Dr. Chad J. Pendley affiliated with?
Dr. Pendley practices at Advocate Good Samaritan Hospital in Downers Grove, Illinois.
What medical group is Dr. Chad J. Pendley part of?
Dr. Pendley is linked to Dreyer Medical Clinic (Advocate Medical Group). Dmand AI links Dr. Pendley to 2 more medical groups.
Does Dr. Chad J. Pendley accept Medicare?
Yes. CMS data shows Dr. Pendley billed Medicare for 1,005 services in 2024, and Dr. Pendley accepts Medicare assignment.
How many Medicare patients does Dr. Chad J. Pendley see?
CMS counts 300 Medicare patients who saw Dr. Pendley in 2024, with an average age of 76.
What services does Dr. Chad J. Pendley bill to Medicare?
In 2024, Dr. Pendley's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99232).
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Where did Dr. Chad J. Pendley go to medical school?
Dr. Pendley graduated from Medical College of Wisconsin in 2012.
What drugs does Dr. Chad J. Pendley prescribe most?
In 2024 Medicare Part D data, Dr. Pendley's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Prednisone and Pantoprazole Sodium.
How long has Dr. Chad J. Pendley been practicing?
Dr. Pendley graduated from medical school in 2012, 14 years ago.
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