Dr. Arturo D. Castro Diaz, MD
- Medicare services, 2024
- 870
- Medicare patients, 2024
- 332
- Part D claims, 2024
- 344
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 2651 E Discovery Pkwy, Bloomington, IN 47408
- Practice phone
- Call (812) 353-5252
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
IU Health Bloomington
Bloomington, Indiana
Find Dr. Castro Diaz'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. Arturo D. Castro Diaz is an internist in Bloomington, Indiana
Dr. Castro Diaz practices at IU Health Bloomington in Bloomington, Indiana.
Dr. Castro Diaz's NPI, 1538621842, was assigned on April 4, 2019. Dr. Castro Diaz holds Indiana license 01088753A.
- NPI
- 1538621842NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608104047
- NPI enumeration date
- April 4, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (812) 353-5252
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Arturo D. Castro Diaz practices at IU Health Bloomington in Bloomington, Indiana
Dr. Castro Diaz's primary practice is IU Health Bloomington, at 2651 E Discovery Pkwy, Bloomington, IN 47408 in Monroe County. The practice phone is (812) 353-5252.
- IU Health Bloomington2651 E Discovery Pkwy, Bloomington, IN 47408 · Monroe CountyPhone(812) 353-5252
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Arturo D. Castro Diaz is affiliated with 3 sites of care and 2 medical groups
Dr. Castro Diaz's primary practice is IU Health Bloomington in Bloomington, Indiana. Dr. Castro Diaz is also affiliated with IU Health Bloomington Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Castro Diaz to 1 more hospital and 1 medical group, 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. Arturo D. Castro Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castro Diaz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| IU Health Bloomington | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Arturo D. Castro Diaz is one of 1,987 internists in Indiana
Internal medicine is Dr. Castro Diaz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Castro Diaz is licensed in Indiana.
Specialties and state licenses
- Internal medicine, IndianaPrimary
Internists near Dr. Castro Diaz
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. Arturo D. Castro Diaz billed Medicare for 870 services in 2024
CMS data shows 870 Medicare services from Dr. Castro Diaz across 4 procedure codes in 2024, for 332 Medicare patients. Medicare paid $57,858 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Castro Diaz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7782024: 87012%
Dr. Castro Diaz compared with the Indiana median for internists, 2024
- Dr. Castro Diaz
- Indiana median
- Medicare services
- 870vs 52067% above
- Medicare patients
- 332vs 21257% above
- Part D claims
- 151vs 1595% below
Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.
Dr. Castro Diaz'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. Castro Diaz?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Castro Diaz and other internists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Arturo D. Castro Diaz treated 332 Medicare patients in 2024, average age 76
CMS counts 332 Medicare patients who saw Dr. Castro Diaz in 2024. The largest group is 75 to 84, with 110 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.25, 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. Castro Diaz's median patient age at 68, with 48% women.
Dr. Castro Diaz's Medicare patients by age, 2024
Dr. Castro Diaz's Medicare patients by sex, 2024
- Women17252%
- Men16048%
Chronic conditions among Dr. Castro Diaz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Mood disorders54%
- Depression52%
- Anxiety51%
- Diabetes51%
- Chronic kidney disease49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Castro Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Arturo D. Castro Diaz wrote 344 Medicare Part D claims in 2024
In 2024, Dr. Castro Diaz wrote 344 Medicare Part D claims for 119 patients. 87% of them were for generic drugs. CMS names the drug for 151 of them, across 9 drugs with 11 or more claims each, at $9,026 in total drug cost. In 2023, CMS named 181 claims across 10 drugs.
Dr. Castro Diaz's Part D claims by kind of drug, 2024
- Generic300 claims87%
- Brand-name and other44 claims13%
Dr. Castro Diaz'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. Castro Diaz's Part D claims, 2024
- Opioids8%28 of 344 claims
- Antibiotics19%64 of 344 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: 1812024: 15117%
Drugs named by CMS: 9 in 2024, 10 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. Arturo D. Castro Diaz takes part in Medicare
Dr. Castro Diaz 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. Arturo D. Castro Diaz has 1 publication on record
Dmand AI links 1 paper to Dr. Castro Diaz in 2019.
Recent publications by Dr. Castro Diaz
See who Dr. Castro Diaz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Castro Diaz works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Arturo D. Castro Diaz'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Arturo D. Castro Diaz
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. Arturo D. Castro Diaz's NPI number?
Dr. Arturo D. Castro Diaz's NPI number is 1538621842. It was assigned on April 4, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Arturo D. Castro Diaz?
Dr. Arturo D. Castro Diaz is an internist in Bloomington, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Arturo D. Castro Diaz practice?
Dr. Castro Diaz practices at 2651 E Discovery Pkwy, Bloomington, IN 47408. Dr. Castro Diaz's primary practice is IU Health Bloomington in Bloomington, Indiana. Dmand AI also links Dr. Castro Diaz to 1 hospital and 1 medical group.
What is Dr. Arturo D. Castro Diaz's office phone number?
The practice phone on file for Dr. Castro Diaz is (812) 353-5252.
What is Dr. Arturo D. Castro Diaz's medical license number?
Dr. Castro Diaz holds Indiana license 01088753A.
Which hospitals is Dr. Arturo D. Castro Diaz affiliated with?
Dr. Castro Diaz is affiliated with IU Health Bloomington Hospital. Dmand AI links Dr. Castro Diaz to 1 more hospital.
What medical group is Dr. Arturo D. Castro Diaz part of?
Dr. Castro Diaz is linked to IU Health Medical Group. Dmand AI links Dr. Castro Diaz to 1 more medical group.
Does Dr. Arturo D. Castro Diaz accept Medicare?
Yes. CMS data shows Dr. Castro Diaz billed Medicare for 870 services in 2024, and Dr. Castro Diaz accepts Medicare assignment.
How many Medicare patients does Dr. Arturo D. Castro Diaz see?
CMS counts 332 Medicare patients who saw Dr. Castro Diaz in 2024, with an average age of 76.
What services does Dr. Arturo D. Castro Diaz bill to Medicare?
In 2024, Dr. Castro Diaz's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99233).
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What drugs does Dr. Arturo D. Castro Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Castro Diaz's most prescribed drugs by claims were Pantoprazole Sodium, Amoxicillin-Clavulanate Potass and Atorvastatin Calcium.
How long has Dr. Arturo D. Castro Diaz been practicing?
Dr. Castro Diaz graduated from medical school in 2018, 8 years ago.
Does Dr. Arturo D. Castro Diaz do research?
Dmand AI links 1 publication to Dr. Castro Diaz.
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