Dr. Clive Lionel Alonzo, MD
- Medicare services, 2024
- 355
- Medicare patients, 2024
- 136
- Part D claims, 2024
- 282
- Hospital affiliations
- 2
- Industry payments
- $557
- Practice address
- 421 E State Highway 114, Southlake, TX 76092
- Practice phone
- Call (878) 654-4400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Alonzo's professional email, personal email and mobile number
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Dr. Clive Lionel Alonzo is an internist in Merrillville, Indiana
Dr. Alonzo practices at Methodist Southlake Medical Center in Southlake, Texas, part of Methodist Hospitals of Dallas.
Dr. Alonzo's NPI, 1134190721, was assigned on January 31, 2006. Dr. Alonzo graduated from Meharry Medical College School of Medicine in 2002. Dr. Alonzo holds Indiana license 01060964A.
- NPI
- 1134190721NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012935919
- NPI enumeration date
- January 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (878) 654-4400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Clive Lionel Alonzo practices in Southlake and Merrillville
Dr. Alonzo's primary practice is Methodist Southlake Medical Center, at 421 E State Highway 114, Southlake, TX 76092 in Tarrant County. The practice phone is (878) 654-4400. Dr. Alonzo also practices at Methodist Southlake Hospital, 8701 Broadway, Merrillville, IN 46410.
- Methodist Southlake Medical CenterPrimary421 E State Highway 114, Southlake, TX 76092 · Tarrant CountyPhone(878) 654-4400
- Methodist Southlake Hospital8701 Broadway, Merrillville, IN 46410 · Lake CountyPhone(219) 886-4404
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Clive Lionel Alonzo is affiliated with 2 sites of care and 2 medical groups
Dr. Alonzo's primary practice is Methodist Southlake Medical Center in Southlake, Texas, part of Methodist Hospitals of Dallas. Dr. Alonzo is also affiliated with Methodist Hospitals - Northlake. The medical group on file is Sound Physicians. Dmand AI also links Dr. Alonzo to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Clive Lionel Alonzo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alonzo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Methodist Southlake Medical Center | Available with a free account |
| +1 more site and 1 medical group | 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 Methodist Hospitals of Dallas and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Clive Lionel Alonzo is one of 1,987 internists in Indiana
Internal medicine is Dr. Alonzo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Alonzo's licenses on file in 2 states: Indiana and Illinois.
Specialties and state licenses
- Internal medicine, IndianaPrimary
- Hospitalist, Illinois
Internists near Dr. Alonzo
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. Clive Lionel Alonzo billed Medicare for 355 services in 2024
CMS data shows 355 Medicare services from Dr. Alonzo across 6 procedure codes in 2024, for 136 Medicare patients. Medicare paid $30,329 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Alonzo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4212024: 35516%
Dr. Alonzo compared with the Indiana median for internists, 2024
- Dr. Alonzo
- Indiana median
- Medicare services
- 355vs 52032% below
- Medicare patients
- 136vs 21236% below
- Part D claims
- 52vs 15967% below
Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.
Dr. Alonzo'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.
Need commercial claims for Dr. Alonzo?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Alonzo and other internists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Clive Lionel Alonzo treated 136 Medicare patients in 2024, average age 71
CMS counts 136 Medicare patients who saw Dr. Alonzo in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 63% are also on Medicaid. Their average risk score is 3.01, 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. Alonzo's median patient age at 70, with 55% women.
Dr. Alonzo's Medicare patients by age, 2024
Dr. Alonzo's Medicare patients by sex, 2024
- Women7454%
- Men6246%
Chronic conditions among Dr. Alonzo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Heart failure60%
- COPD57%
- Diabetes57%
- Chronic kidney disease51%
- Arthritis49%
- Ischemic heart disease45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Alonzo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women55%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Clive Lionel Alonzo wrote 282 Medicare Part D claims in 2024
In 2024, Dr. Alonzo wrote 282 Medicare Part D claims for 94 patients. 84% of them were for generic drugs. CMS names the drug for 52 of them, across 4 drugs with 11 or more claims each, at $537 in total drug cost. In 2023, CMS named 13 claims across 1 drug.
Dr. Alonzo's Part D claims by kind of drug, 2024
- Generic237 claims84%
- Brand-name and other45 claims16%
Dr. Alonzo'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. Alonzo's Part D claims, 2024
- Antibiotics9%24 of 282 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: 132024: 52300%
Drugs named by CMS: 4 in 2024, 1 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. Clive Lionel Alonzo takes part in Medicare
Dr. Alonzo 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. Clive Lionel Alonzo received $557 in industry payments from 2016 to 2024
CMS Open Payments shows 27 general payments to Dr. Alonzo from 8 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $309.
General payments to Dr. Alonzo by program year, 2016 to 2024
Companies that paid Dr. Alonzo the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Clive Lionel Alonzo graduated from Meharry Medical College School of Medicine
Dr. Alonzo graduated from Meharry Medical College School of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Clive Lionel Alonzo'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 DataDmand AI Practice 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) |
| Industry payments | Open Payments (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. Clive Lionel Alonzo
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. Clive Lionel Alonzo's NPI number?
Dr. Clive Lionel Alonzo's NPI number is 1134190721. It was assigned on January 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Clive Lionel Alonzo?
Dr. Clive Lionel Alonzo is an internist in Merrillville, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Clive Lionel Alonzo practice?
Dr. Alonzo practices at 421 E State Highway 114, Southlake, TX 76092. Dr. Alonzo also practices at 8701 Broadway, Merrillville, IN 46410. Dr. Alonzo's primary practice is Methodist Southlake Medical Center in Southlake, Texas, part of Methodist Hospitals of Dallas. Dmand AI also links Dr. Alonzo to 1 medical group.
What is Dr. Clive Lionel Alonzo's office phone number?
The practice phone on file for Dr. Alonzo is (878) 654-4400.
What is Dr. Clive Lionel Alonzo's medical license number?
Dr. Alonzo holds Indiana license 01060964A, one of the licenses on file in 2 states.
Which states has Dr. Clive Lionel Alonzo been licensed in?
Dmand AI has state licenses on file for Dr. Alonzo in Indiana and Illinois.
Which hospitals is Dr. Clive Lionel Alonzo affiliated with?
Dr. Alonzo practices at Methodist Southlake Medical Center in Southlake, Texas. Dr. Alonzo is also affiliated with Methodist Hospitals - Northlake.
What medical group is Dr. Clive Lionel Alonzo part of?
Dr. Alonzo is linked to Sound Physicians. Dmand AI links Dr. Alonzo to 1 more medical group.
Does Dr. Clive Lionel Alonzo accept Medicare?
Yes. CMS data shows Dr. Alonzo billed Medicare for 355 services in 2024, and Dr. Alonzo accepts Medicare assignment.
How many Medicare patients does Dr. Clive Lionel Alonzo see?
CMS counts 136 Medicare patients who saw Dr. Alonzo in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Clive Lionel Alonzo bill to Medicare?
In 2024, Dr. Alonzo's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and critical care (99291).
Where did Dr. Clive Lionel Alonzo go to medical school?
Dr. Alonzo graduated from Meharry Medical College School of Medicine in 2002.
What drugs does Dr. Clive Lionel Alonzo prescribe most?
In 2024 Medicare Part D data, Dr. Alonzo's most prescribed drugs by claims were Duloxetine HCl, Carvedilol and Prednisone.
Has Dr. Clive Lionel Alonzo received payments from drug or device companies?
CMS Open Payments shows $557 in general payments to Dr. Alonzo from 8 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Clive Lionel Alonzo been practicing?
Dr. Alonzo graduated from medical school in 2002, 24 years ago.
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