Aaron R. Block, PA-C
- Medicare patients, 2024
- 243
- Part D claims, 2024
- 1,562
- Hospital affiliations
- 6
- Industry payments
- $26
- Medical groups
- 4
- Practice address
- 501 W 14th St, Wilmington, DE 19801
- Practice phone
- Call (302) 623-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
ChristianaCare Wilmington Hospital
Wilmington, Delaware
Find Aaron Block'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.
Aaron R. Block is a physician assistant in Wilmington, Delaware
Aaron Block practices at ChristianaCare Wilmington Hospital in Wilmington, Delaware.
Aaron Block's NPI, 1700922390, was assigned on January 30, 2007. Aaron Block holds Delaware license C50000564.
- NPI
- 1700922390NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759484066
- NPI enumeration date
- January 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (302) 623-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Aaron R. Block practices at ChristianaCare Wilmington Hospital in Wilmington, Delaware
Aaron Block's primary practice is ChristianaCare Wilmington Hospital, at 501 W 14th St, Wilmington, DE 19801 in New Castle County. The practice phone is (302) 623-7000.
- ChristianaCare Wilmington Hospital501 W 14th St, Wilmington, DE 19801 · New Castle CountyPhone(302) 623-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Aaron R. Block is affiliated with 8 sites of care and 4 medical groups
Aaron Block's primary practice is ChristianaCare Wilmington Hospital in Wilmington, Delaware. Aaron Block is also affiliated with Select Specialty Hospital - Wilmington. The medical group on file is ChristianaCare. Dmand AI also links Aaron Block to 5 more hospitals, 3 medical groups and 1 group practice or clinic, 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 Aaron R. Block's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Aaron Block practices, 7 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 |
| +7 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Aaron R. Block is one of 631 physician assistants in Delaware
Physician assistant is Aaron Block's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Aaron Block is licensed in Delaware.
Specialties and state licenses
- Physician assistant, DelawarePrimary
Physician assistants near Aaron Block
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
Aaron R. Block treated 243 Medicare patients in 2024, average age 75
CMS counts 243 Medicare patients who saw Aaron Block in 2024. The largest group is 65 to 74, with 114 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Aaron Block's median patient age at 77, with 52% women.
Aaron Block's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Aaron Block's Medicare patients by sex, 2024
- Women12049%
- Men12351%
Chronic conditions among Aaron Block's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease40%
- Anxiety36%
- Mood disorders33%
- Depression31%
- Alzheimer's and dementia28%
Share of Medicare patients with each condition. A patient can have several.
Aaron Block's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women52%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Aaron R. Block wrote 1,562 Medicare Part D claims in 2024
In 2024, Aaron Block wrote 1,562 Medicare Part D claims for 349 patients. 93% of them were for generic drugs.
Aaron Block's Part D claims by kind of drug, 2024
- Generic1,454 claims93%
- Brand-name and other108 claims7%
Drug classes CMS tracks in Aaron Block's Part D claims, 2024
- Antibiotics1%18 of 1,562 claims
- Antipsychotics, patients 65 and over1%20 of 1,562 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
Aaron R. Block offers telehealth to Medicare patients
Aaron Block accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Aaron Block as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Aaron R. Block received $26 in industry payments in 2025
CMS Open Payments shows 1 general payment to Aaron Block from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Eisai Inc. paid the most, $26.
Companies that paid Aaron Block 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 Aaron R. Block'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 Aaron R. Block
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Aaron R. Block's NPI number?
Aaron R. Block's NPI number is 1700922390. It was assigned on January 30, 2007, and it is active in the NPI Registry.
What does Aaron R. Block specialize in?
Aaron R. Block is a physician assistant in Wilmington, Delaware. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Aaron R. Block practice?
Aaron Block practices at 501 W 14th St, Wilmington, DE 19801. Aaron Block's primary practice is ChristianaCare Wilmington Hospital in Wilmington, Delaware. Dmand AI also links Aaron Block to 5 hospitals, 3 medical groups and 1 group practice or clinic.
What is Aaron R. Block's office phone number?
The practice phone on file for Aaron Block is (302) 623-7000.
What is Aaron R. Block's medical license number?
Aaron Block holds Delaware license C50000564.
Which hospitals is Aaron R. Block affiliated with?
Aaron Block is affiliated with Select Specialty Hospital - Wilmington. Dmand AI links Aaron Block to 5 more hospitals.
What medical group is Aaron R. Block part of?
Aaron Block is linked to ChristianaCare. Dmand AI links Aaron Block to 3 more medical groups.
Does Aaron R. Block accept Medicare?
Yes. CMS lists Aaron Block as accepting Medicare assignment.
Does Aaron R. Block offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Aaron Block as offering telehealth services.
How many Medicare patients does Aaron R. Block see?
CMS counts 243 Medicare patients who saw Aaron Block in 2024, with an average age of 75.
Has Aaron R. Block received payments from drug or device companies?
CMS Open Payments shows $26 in general payments to Aaron Block from 1 company from 2025 to 2025. The largest total came from Eisai Inc.
How long has Aaron R. Block been practicing?
Aaron Block graduated from medical school in 2005, 21 years ago.
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