Seth William Callahan, PA-C
- Medicare patients, 2024
- 135
- Part D claims, 2024
- 817
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- Industry payments
- $223
- Practice address
- 100 Twin C Lane, Suite 200, Newark, DE 19713
- Practice phone
- Call (302) 683-0700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
First State Surgery Center
Surgery Center - Medicare-Certified · Newark, Delaware
Find Seth Callahan'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.
Seth William Callahan is a physician assistant in Newark, Delaware
Seth Callahan practices at First State Surgery Center in Newark, Delaware.
Seth Callahan's NPI, 1548833577, was assigned on July 19, 2021.
- NPI
- 1548833577NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901202936
- NPI enumeration date
- July 19, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (302) 683-0700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Seth William Callahan practices at 2 locations in Newark, Delaware
Seth Callahan's primary practice is First State Surgery Center, at 100 Twin C Lane, Suite 200, Newark, DE 19713. The practice phone is (302) 683-0700. Seth Callahan also practices at First State Surgery Center, 1000 Twin C Ln, Newark, DE 19713.
- First State Surgery CenterPrimary100 Twin C Lane, Suite 200, Newark, DE 19713Phone(302) 683-0700
- First State Surgery Center1000 Twin C Ln, Newark, DE 19713 · New Castle CountyPhone(302) 683-0700
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Seth William Callahan is affiliated with 4 sites of care and 2 medical groups
Seth Callahan's primary practice is First State Surgery Center in Newark, Delaware. Seth Callahan is also affiliated with Christiana Hospital. The medical group on file is Agape Physical Therapy. Dmand AI also links Seth Callahan to 2 more group practices and clinics 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 Seth William Callahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Seth Callahan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| First State Surgery Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Seth William Callahan is one of 631 physician assistants in Delaware
Physician assistant is Seth Callahan's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Seth Callahan
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
Seth William Callahan treated 135 Medicare patients in 2024, average age 74
CMS counts 135 Medicare patients who saw Seth Callahan in 2024. The largest group is 65 to 74, with 66 patients. 75% of them have arthritis, and 75% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Seth Callahan's median patient age at 63, with 44% women.
Seth Callahan's Medicare patients by age, 2024
Seth Callahan's Medicare patients by sex, 2024
- Women8361%
- Men5239%
Chronic conditions among Seth Callahan's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Anxiety35%
- Diabetes34%
- Mood disorders33%
- Depression28%
- Ischemic heart disease24%
Share of Medicare patients with each condition. A patient can have several.
Seth Callahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Seth William Callahan wrote 817 Medicare Part D claims in 2024
In 2024, Seth Callahan wrote 817 Medicare Part D claims for 222 patients. 98% of them were for generic drugs.
Seth Callahan's Part D claims by kind of drug, 2024
- Generic803 claims98%
- Brand-name14 claims2%
Drug classes CMS tracks in Seth Callahan's Part D claims, 2024
- Opioids29%239 of 817 claims
- Antibiotics15%120 of 817 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
Seth William Callahan scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Seth Callahan for performance year 2024, reported as part of a group. Seth Callahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Seth Callahan's MIPS scores, performance year 2024
- 98of 100Final score
- 96of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Seth William Callahan received $223 in industry payments in 2025
CMS Open Payments shows 4 general payments to Seth Callahan from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $94.
Companies that paid Seth Callahan 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 Seth William Callahan'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 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)Clinician Public Reporting: Overall MIPS Performance (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 Seth William Callahan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Seth William Callahan's NPI number?
Seth William Callahan's NPI number is 1548833577. It was assigned on July 19, 2021, and it is active in the NPI Registry.
What does Seth William Callahan specialize in?
Seth William Callahan is a physician assistant in Newark, Delaware. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Seth William Callahan practice?
Seth Callahan practices at 100 Twin C Lane, Suite 200, Newark, DE 19713. Seth Callahan also practices at 1000 Twin C Ln, Newark, DE 19713. Seth Callahan's primary practice is First State Surgery Center in Newark, Delaware. Dmand AI also links Seth Callahan to 2 group practices and clinics and 1 medical group.
What is Seth William Callahan's office phone number?
The practice phone on file for Seth Callahan is (302) 683-0700.
Which hospitals is Seth William Callahan affiliated with?
Seth Callahan is affiliated with Christiana Hospital.
What medical group is Seth William Callahan part of?
Seth Callahan is linked to Agape Physical Therapy. Dmand AI links Seth Callahan to 1 more medical group.
Does Seth William Callahan accept Medicare?
Yes. CMS lists Seth Callahan as accepting Medicare assignment.
What is Seth William Callahan's MIPS score?
Seth Callahan's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.
How many Medicare patients does Seth William Callahan see?
CMS counts 135 Medicare patients who saw Seth Callahan in 2024, with an average age of 74.
Has Seth William Callahan received payments from drug or device companies?
CMS Open Payments shows $223 in general payments to Seth Callahan from 3 companies from 2025 to 2025. The largest total came from Stryker Corporation.
How long has Seth William Callahan been practicing?
Seth Callahan graduated from medical school in 2021, 5 years ago.
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