Dr. Mathew V. Castelino, MD
- Medicare services, 2024
- 245
- Medicare patients, 2024
- 57
- Part D claims, 2024
- 5,821
- Hospital affiliations
- 2
- Industry payments
- $6,534
- Practice address
- 600 Grant St, Gary, IN 46402
- Practice phone
- Call (219) 886-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Castelino'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. Mathew V. Castelino is a psychiatrist in Gary, Indiana
Dr. Castelino practices at Methodist Hospitals - Northlake in Gary, Indiana, part of The Methodist Hospitals.
Dr. Castelino's NPI, 1912970229, was assigned on February 8, 2006. Dr. Castelino holds Illinois license 036087553.
- NPI
- 1912970229NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527051572
- NPI enumeration date
- February 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (219) 886-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mathew V. Castelino practices at Methodist Hospitals - Northlake in Gary, Indiana
Dr. Castelino's primary practice is Methodist Hospitals - Northlake, at 600 Grant St, Gary, IN 46402 in Lake County. The practice phone is (219) 886-4000.
- Methodist Hospitals - Northlake600 Grant St, Gary, IN 46402 · Lake CountyPhone(219) 886-4000
Source: Dmand AI Affiliation Data
Dr. Mathew V. Castelino is affiliated with 3 sites of care and 2 medical groups
Dr. Castelino's primary practice is Methodist Hospitals - Northlake in Gary, Indiana, part of The Methodist Hospitals. The medical group on file is Methodist Hospitals Endocrinology Services. Dmand AI also links Dr. Castelino to 1 more hospital, 1 community health center and 1 medical group, 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. Mathew V. Castelino's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castelino practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Methodist Hospitals - Northlake | Available with a free account |
| +2 more sites 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 The Methodist Hospitals and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mathew V. Castelino is one of 541 psychiatrists in Indiana
Psychiatry is Dr. Castelino's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Castelino is licensed in Illinois.
Specialties and state licenses
- Psychiatry, IllinoisPrimary
Psychiatrists near Dr. Castelino
Counts of psychiatrists 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. Mathew V. Castelino billed Medicare for 245 services in 2024
CMS data shows 245 Medicare services from Dr. Castelino across 4 procedure codes in 2024, for 57 Medicare patients. Medicare paid $7,852 for them.
Dr. Castelino's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2172024: 13737%
- Tests and treatments
- 2023: 1942024: 10844%
Where Dr. Castelino's Medicare services took place, 2024
- In an office10844%
- In a facility13756%
Dr. Castelino compared with the Indiana median for psychiatrists, 2024
- Dr. Castelino
- Indiana median
- Medicare services
- 245vs 13976% above
- Medicare patients
- 57vs 4916% above
- Part D claims
- 5,692vs 21027.1 times
Medians across 578 psychiatrists in Indiana with Dmand AI profiles that report each measure.
Dr. Castelino'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. Castelino?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Castelino and other psychiatrists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mathew V. Castelino treated 57 Medicare patients in 2024, average age 50
CMS counts 57 Medicare patients who saw Dr. Castelino in 2024. 75% of them have schizophrenia and other psychoses, and 67% have mood disorders. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Castelino's median patient age at 45, with 46% women.
Dr. Castelino's Medicare patients by sex, 2024
- Women1628%
- Men4172%
Chronic conditions among Dr. Castelino's Medicare patients, 2024
- Schizophrenia and other psychoses75%
- Mood disorders67%
- Bipolar disorder60%
- Tobacco use53%
- High blood pressure47%
- Depression42%
- Anxiety40%
- Alcohol and drug use disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Castelino'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
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mathew V. Castelino wrote 5,821 Medicare Part D claims in 2024
In 2024, Dr. Castelino wrote 5,821 Medicare Part D claims for 259 patients. 81% of them were for generic drugs. CMS names the drug for 5,692 of them, across 69 drugs with 11 or more claims each, at $2,960,523 in total drug cost. In 2023, CMS named 5,885 claims across 72 drugs.
Dr. Castelino's Part D claims by kind of drug, 2024
- Generic4,736 claims81%
- Brand-name and other1,085 claims19%
Dr. Castelino'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. Castelino's Part D claims, 2024
- Antipsychotics, patients 65 and over12%684 of 5,821 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: 5,8852024: 5,6923%
Drugs named by CMS: 69 in 2024, 72 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. Mathew V. Castelino takes part in Medicare
Dr. Castelino 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. Mathew V. Castelino received $6,534 in industry payments from 2016 to 2025
CMS Open Payments shows 397 general payments to Dr. Castelino from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Janssen Pharmaceuticals, Inc paid the most, $1,050.
General payments to Dr. Castelino by program year, 2016 to 2025
General payments to Dr. Castelino by kind, 2016 to 2025
- Food and beverage$6,32497%
- Education$2103%
Companies that paid Dr. Castelino the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mathew V. Castelino'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) |
| 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. Mathew V. Castelino
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. Mathew V. Castelino's NPI number?
Dr. Mathew V. Castelino's NPI number is 1912970229. It was assigned on February 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mathew V. Castelino?
Dr. Mathew V. Castelino is a psychiatrist in Gary, Indiana. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Mathew V. Castelino practice?
Dr. Castelino practices at 600 Grant St, Gary, IN 46402. Dr. Castelino's primary practice is Methodist Hospitals - Northlake in Gary, Indiana, part of The Methodist Hospitals. Dmand AI also links Dr. Castelino to 1 hospital, 1 community health center and 1 medical group.
What is Dr. Mathew V. Castelino's office phone number?
The practice phone on file for Dr. Castelino is (219) 886-4000.
What is Dr. Mathew V. Castelino's medical license number?
Dr. Castelino holds Illinois license 036087553.
Which hospitals is Dr. Mathew V. Castelino affiliated with?
Dr. Castelino practices at Methodist Hospitals - Northlake in Gary, Indiana. Dmand AI links Dr. Castelino to 1 more hospital.
What medical group is Dr. Mathew V. Castelino part of?
Dr. Castelino is linked to Methodist Hospitals Endocrinology Services. Dmand AI links Dr. Castelino to 1 more medical group.
Does Dr. Mathew V. Castelino accept Medicare?
Yes. CMS data shows Dr. Castelino billed Medicare for 245 services in 2024, and Dr. Castelino accepts Medicare assignment.
How many Medicare patients does Dr. Mathew V. Castelino see?
CMS counts 57 Medicare patients who saw Dr. Castelino in 2024, with an average age of 50.
What services does Dr. Mathew V. Castelino bill to Medicare?
In 2024, Dr. Castelino's most billed Medicare services were infusion or chemotherapy administration (96372), hospital inpatient care (99232) and hospital inpatient care (99238).
Show 3 more questionsShow fewer questions
What drugs does Dr. Mathew V. Castelino prescribe most?
In 2024 Medicare Part D data, Dr. Castelino's most prescribed drugs by claims were Quetiapine Fumarate, Escitalopram Oxalate and Clonazepam.
Has Dr. Mathew V. Castelino received payments from drug or device companies?
CMS Open Payments shows $6,534 in general payments to Dr. Castelino from 17 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Mathew V. Castelino been practicing?
Dr. Castelino graduated from medical school in 1979, 47 years ago.
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