Regina M. Costroff, PA-C
- Medicare patients, 2024
- 50
- Part D claims, 2024
- 70
- Hospital affiliations
- 1
- Industry payments
- $54
- Medical groups
- 4
- Practice address
- 501 W 14th St, Wilmington, DE 19801
- Practice phone
- Call (302) 733-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
ChristianaCare Wilmington Hospital
Wilmington, Delaware
Find Regina Costroff'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.
Regina M. Costroff is a physician assistant in Wilmington, Delaware
Regina Costroff practices at ChristianaCare Wilmington Hospital in Wilmington, Delaware.
Regina Costroff's NPI, 1932670486, was assigned on December 10, 2018. Regina Costroff holds New Jersey license 25MP0050660.
- NPI
- 1932670486NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193063683
- NPI enumeration date
- December 10, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (302) 733-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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)
Regina M. Costroff practices at ChristianaCare Wilmington Hospital in Wilmington, Delaware
Regina Costroff's primary practice is ChristianaCare Wilmington Hospital, at 501 W 14th St, Wilmington, DE 19801 in New Castle County. The practice phone is (302) 733-1000.
- ChristianaCare Wilmington Hospital501 W 14th St, Wilmington, DE 19801 · New Castle CountyPhone(302) 733-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Regina M. Costroff is affiliated with 5 sites of care and 4 medical groups
Regina Costroff's primary practice is ChristianaCare Wilmington Hospital in Wilmington, Delaware. Regina Costroff is also affiliated with Select Specialty Hospital - Wilmington. The medical group on file is ChristianaCare. Dmand AI also links Regina Costroff to 3 more group practices and clinics and 3 medical groups, 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 Regina M. Costroff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Regina Costroff practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ChristianaCare Wilmington Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Regina M. Costroff is one of 631 physician assistants in Delaware
Physician assistant is Regina Costroff's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Regina Costroff's licenses on file in 2 states: New Jersey and Delaware.
Specialties and state licenses
- Physician assistant, New JerseyPrimary
- Delaware license
Physician assistants near Regina Costroff
Counts of physician assistants 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
Regina M. Costroff treated 50 Medicare patients in 2024, average age 73
CMS counts 50 Medicare patients who saw Regina Costroff in 2024. The largest group is 65 to 74, with 22 patients. 75% of them have high blood pressure, and 68% have high cholesterol. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Regina Costroff's median patient age at 60, with 52% women.
Regina Costroff's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Regina Costroff's Medicare patients by sex, 2024
- Women3366%
- Men1734%
Chronic conditions among Regina Costroff's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis46%
- Anxiety30%
- Diabetes26%
- Ischemic heart disease26%
Share of Medicare patients with each condition. A patient can have several.
Regina Costroff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Regina M. Costroff wrote 70 Medicare Part D claims in 2024
In 2024, Regina Costroff wrote 70 Medicare Part D claims for 61 patients. 84% of them were for generic drugs.
Regina Costroff's Part D claims by kind of drug, 2024
- Generic59 claims84%
- Brand-name and other11 claims16%
Drug classes CMS tracks in Regina Costroff's Part D claims, 2024
- Antibiotics56%39 of 70 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Regina M. Costroff takes part in Medicare
Regina Costroff 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.
Regina M. Costroff received $54 in industry payments in 2025
CMS Open Payments shows 3 general payments to Regina Costroff from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $20.
Companies that paid Regina Costroff the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Regina M. Costroff'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 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 (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 Regina M. Costroff
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Regina M. Costroff's NPI number?
Regina M. Costroff's NPI number is 1932670486. It was assigned on December 10, 2018, and it is active in the NPI Registry.
What does Regina M. Costroff specialize in?
Regina M. Costroff is a physician assistant in Wilmington, Delaware. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Regina M. Costroff practice?
Regina Costroff practices at 501 W 14th St, Wilmington, DE 19801. Regina Costroff's primary practice is ChristianaCare Wilmington Hospital in Wilmington, Delaware. Dmand AI also links Regina Costroff to 3 group practices and clinics and 3 medical groups.
What is Regina M. Costroff's office phone number?
The practice phone on file for Regina Costroff is (302) 733-1000.
What is Regina M. Costroff's medical license number?
Regina Costroff holds New Jersey license 25MP0050660, one of the licenses on file in 2 states.
Which states has Regina M. Costroff been licensed in?
Dmand AI has state licenses on file for Regina Costroff in New Jersey and Delaware.
Which hospitals is Regina M. Costroff affiliated with?
Regina Costroff is affiliated with Select Specialty Hospital - Wilmington.
What medical group is Regina M. Costroff part of?
Regina Costroff is linked to ChristianaCare. Dmand AI links Regina Costroff to 3 more medical groups.
Does Regina M. Costroff accept Medicare?
Yes. CMS lists Regina Costroff as accepting Medicare assignment.
How many Medicare patients does Regina M. Costroff see?
CMS counts 50 Medicare patients who saw Regina Costroff in 2024, with an average age of 73.
Has Regina M. Costroff received payments from drug or device companies?
CMS Open Payments shows $54 in general payments to Regina Costroff from 3 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Regina M. Costroff been practicing?
Regina Costroff graduated from medical school in 2018, 8 years ago.
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