Dr. Kathleen Serafica Castillo, MD
- Part D claims, 2024
- 252
- Hospital affiliations
- 3
- Industry payments
- $360
- Medical group
- 1
- State license
- 1
- Practice address
- 410 West 10th Avenue, Columbus, OH 43210
- Practice phone
- Call (614) 293-9700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Kathleen Serafica Castillo is an internist in Columbus, Ohio
Dr. Castillo practices at Ohio State University Hospital in Columbus, Ohio, part of The Ohio State University Wexner Medical Center.
Dr. Castillo's NPI, 1891374617, was assigned on April 7, 2021. Dr. Castillo holds Ohio license 57.251338.
- NPI
- 1891374617NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800296740
- NPI enumeration date
- April 7, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (614) 293-9700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kathleen Serafica Castillo practices at Ohio State University Hospital in Columbus, Ohio
Dr. Castillo's primary practice is Ohio State University Hospital, at 410 West 10th Avenue, Columbus, OH 43210 in Franklin County. The practice phone is (614) 293-9700.
- Ohio State University Hospital410 West 10th Avenue, Columbus, OH 43210 · Franklin CountyPhone(614) 293-9700
Source: Dmand AI Affiliation Data
Dr. Kathleen Serafica Castillo is affiliated with 6 sites of care and 1 medical group
Dr. Castillo's primary practice is Ohio State University Hospital in Columbus, Ohio, part of The Ohio State University Wexner Medical Center. Dr. Castillo is also affiliated with The Medical Center at Bowling Green. The medical group on file is Southern Kentucky Nephrology Associates. Dmand AI also links Dr. Castillo to 1 more hospital, 2 hospital outpatient departments and 1 group practice or clinic, 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. Kathleen Serafica Castillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castillo practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ohio State University Hospital | Available with a free account |
| +5 more affiliated sites | 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 Ohio State University Wexner Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Kathleen Serafica Castillo is one of 4,708 internists in Ohio
Internal medicine is Dr. Castillo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Castillo is licensed in Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
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. Kathleen Serafica Castillo's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Castillo's median patient age at 75, with 50% women.
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 75
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Kathleen Serafica Castillo wrote 252 Medicare Part D claims in 2024
In 2024, Dr. Castillo wrote 252 Medicare Part D claims for 34 patients. 72% of them were for generic drugs. CMS names the drug for 68 of them, across 4 drugs with 11 or more claims each, at $602 in total drug cost. In 2023, CMS named 170 claims across 9 drugs.
Dr. Castillo's Part D claims by kind of drug, 2024
- Generic182 claims72%
- Brand-name52 claims21%
- Other18 claims7%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1702024: 6860%
Drugs named by CMS: 4 in 2024, 9 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. Kathleen Serafica Castillo takes part in Medicare
Dr. Castillo 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Kathleen Serafica Castillo received $360 in industry payments from 2022 to 2025
CMS Open Payments shows 11 general payments to Dr. Castillo from 8 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Otsuka Pharmaceutical Development & Commercialization, Inc. paid the most, $120.
General payments to Dr. Castillo by program year, 2022 to 2025
Companies that paid Dr. Castillo the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Kathleen Serafica 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Kathleen Serafica 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. Kathleen Serafica Castillo's NPI number?
Dr. Kathleen Serafica Castillo's NPI number is 1891374617. It was assigned on April 7, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Kathleen Serafica Castillo?
Dr. Kathleen Serafica Castillo is an internist in Columbus, Ohio. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Kathleen Serafica Castillo practice?
Dr. Castillo practices at 410 West 10th Avenue, Columbus, OH 43210. Dr. Castillo's primary practice is Ohio State University Hospital in Columbus, Ohio, part of The Ohio State University Wexner Medical Center. Dmand AI also links Dr. Castillo to 1 hospital, 2 hospital outpatient departments and 1 group practice or clinic.
What is Dr. Kathleen Serafica Castillo's office phone number?
The practice phone on file for Dr. Castillo is (614) 293-9700.
What is Dr. Kathleen Serafica Castillo's medical license number?
Dr. Castillo holds Ohio license 57.251338.
Which hospitals is Dr. Kathleen Serafica Castillo affiliated with?
Dr. Castillo practices at Ohio State University Hospital in Columbus, Ohio. Dr. Castillo is also affiliated with The Medical Center at Bowling Green. Dmand AI links Dr. Castillo to 1 more hospital.
What medical group is Dr. Kathleen Serafica Castillo part of?
Dr. Castillo is linked to Southern Kentucky Nephrology Associates.
Does Dr. Kathleen Serafica Castillo accept Medicare?
Yes. CMS lists Dr. Castillo as accepting Medicare assignment.
What drugs does Dr. Kathleen Serafica Castillo prescribe most?
In 2024 Medicare Part D data, Dr. Castillo's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Diclofenac Sodium.
Has Dr. Kathleen Serafica Castillo received payments from drug or device companies?
CMS Open Payments shows $360 in general payments to Dr. Castillo from 8 companies from 2022 to 2025. The largest total came from Otsuka Pharmaceutical Development & Commercialization, Inc.
How long has Dr. Kathleen Serafica Castillo been practicing?
Dr. Castillo graduated from medical school in 2004, 22 years ago.
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