Dr. Sergio A. Castillo, MD
- Medicare services, 2024
- 344
- Medicare patients, 2024
- 320
- Part D claims, 2024
- 250
- MIPS score, 2024
- 81
- Hospital affiliations
- 6
- Practice address
- 517 N Main St, Anna, IL 62906
- Practice phone
- Call (618) 833-4511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Union County Hospital
Anna, Illinois
Find Dr. Castillo'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. Sergio A. Castillo is an internist in Anna, Illinois
Dr. Castillo practices at Union County Hospital in Anna, Illinois.
Dr. Castillo's NPI, 1114906468, was assigned on January 14, 2006. Dr. Castillo holds Kansas license 04-49153.
- NPI
- 1114906468NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032194782
- NPI enumeration date
- January 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (618) 833-4511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sergio A. Castillo practices at Union County Hospital in Anna, Illinois
Dr. Castillo's primary practice is Union County Hospital, at 517 N Main St, Anna, IL 62906 in Union County. The practice phone is (618) 833-4511.
- Union County Hospital517 N Main St, Anna, IL 62906 · Union CountyPhone(618) 833-4511
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sergio A. Castillo is affiliated with 9 sites of care and 16 medical groups
Dr. Castillo's primary practice is Union County Hospital in Anna, Illinois. Dr. Castillo is also affiliated with Deaconess Illinois Union County. The medical group on file is Deaconess Illinois Specialty Clinic, Kirkwood. Dmand AI also links Dr. Castillo to 5 more hospitals, 15 medical groups, 1 group practice or clinic and 1 rural health clinic, each named with a free account.
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. Sergio A. Castillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castillo practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Union County Hospital | Available with a free account |
| +8 more sites and 15 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sergio A. Castillo is one of 5,652 internists in Illinois
Internal medicine is Dr. Castillo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Castillo's licenses on file in 3 states: Kansas, Florida and Wisconsin.
Specialties and state licenses
- Internal medicine, KansasPrimary
- Florida license
- Emergency medicine, Wisconsin
Internists near Dr. Castillo
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. Sergio A. Castillo billed Medicare for 344 services in 2024
CMS data shows 344 Medicare services from Dr. Castillo across 3 procedure codes in 2024, for 320 Medicare patients. Medicare paid $47,271 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Castillo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4152024: 34417%
- Tests and treatments
- 2023: 292024: 0100%
Dr. Castillo compared with the Illinois median for internists, 2024
- Dr. Castillo
- Illinois median
- Medicare services
- 344vs 56639% below
- Medicare patients
- 320vs 20854% above
- Part D claims
- 137vs 28452% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Castillo'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Castillo and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sergio A. Castillo treated 320 Medicare patients in 2024, average age 77
CMS counts 320 Medicare patients who saw Dr. Castillo in 2024. The largest group is 75 to 84, with 120 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 2.24, 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. Castillo's median patient age at 45, with 54% women.
Dr. Castillo's Medicare patients by age, 2024
Dr. Castillo's Medicare patients by sex, 2024
- Women17856%
- Men14244%
Chronic conditions among Dr. Castillo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Ischemic heart disease59%
- Heart failure58%
- COPD49%
- Chronic kidney disease49%
- Mood disorders49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Castillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sergio A. Castillo wrote 250 Medicare Part D claims in 2024
In 2024, Dr. Castillo wrote 250 Medicare Part D claims for 199 patients. 95% of them were for generic drugs. CMS names the drug for 137 of them, across 8 drugs with 11 or more claims each, at $626 in total drug cost. In 2023, CMS named 146 claims across 7 drugs.
Dr. Castillo's Part D claims by kind of drug, 2024
- Generic238 claims95%
- Brand-name12 claims5%
Dr. Castillo'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. Castillo's Part D claims, 2024
- Opioids11%27 of 250 claims
- Antibiotics38%96 of 250 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: 1462024: 1376%
Drugs named by CMS: 8 in 2024, 7 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
Dr. Sergio A. Castillo scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Castillo for performance year 2024, reported as part of a group. Dr. Castillo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Castillo's MIPS scores, performance year 2024
- 81of 100Final score
- 55.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Sergio A. Castillo received $30 in industry payments from 2017 to 2019
CMS Open Payments shows 2 general payments to Dr. Castillo from 2 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $16.
General payments to Dr. Castillo by program year, 2017 to 2019
Companies that paid Dr. Castillo the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sergio A. Castillo'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Sergio A. Castillo
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. Sergio A. Castillo's NPI number?
Dr. Sergio A. Castillo's NPI number is 1114906468. It was assigned on January 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sergio A. Castillo?
Dr. Sergio A. Castillo is an internist in Anna, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Sergio A. Castillo practice?
Dr. Castillo practices at 517 N Main St, Anna, IL 62906. Dr. Castillo's primary practice is Union County Hospital in Anna, Illinois. Dmand AI also links Dr. Castillo to 5 hospitals, 15 medical groups, 1 group practice or clinic and 1 rural health clinic.
What is Dr. Sergio A. Castillo's office phone number?
The practice phone on file for Dr. Castillo is (618) 833-4511.
What is Dr. Sergio A. Castillo's medical license number?
Dr. Castillo holds Kansas license 04-49153, one of the licenses on file in 3 states.
Which states has Dr. Sergio A. Castillo been licensed in?
Dmand AI has state licenses on file for Dr. Castillo in Kansas, Florida and Wisconsin.
Which hospitals is Dr. Sergio A. Castillo affiliated with?
Dr. Castillo is affiliated with Deaconess Illinois Union County. Dmand AI links Dr. Castillo to 5 more hospitals.
What medical group is Dr. Sergio A. Castillo part of?
Dr. Castillo is linked to Deaconess Illinois Specialty Clinic, Kirkwood. Dmand AI links Dr. Castillo to 15 more medical groups.
Does Dr. Sergio A. Castillo accept Medicare?
Yes. CMS data shows Dr. Castillo billed Medicare for 344 services in 2024, and Dr. Castillo accepts Medicare assignment.
What is Dr. Sergio A. Castillo's MIPS score?
Dr. Castillo's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Sergio A. Castillo see?
CMS counts 320 Medicare patients who saw Dr. Castillo in 2024, with an average age of 77.
What services does Dr. Sergio A. Castillo bill to Medicare?
In 2024, Dr. Castillo's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
What drugs does Dr. Sergio A. Castillo prescribe most?
In 2024 Medicare Part D data, Dr. Castillo's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Ondansetron HCl and Meclizine HCl.
Has Dr. Sergio A. Castillo received payments from drug or device companies?
CMS Open Payments shows $30 in general payments to Dr. Castillo from 2 companies from 2017 to 2019. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Sergio A. Castillo been practicing?
Dr. Castillo graduated from medical school in 1996, 30 years ago.
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