Mary Elizabeth Gross, ACNP
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 518
- Hospital affiliations
- 4
- Industry payments
- $96
- Medical groups
- 5
- Practice address
- 701 Middleford Rd, Seaford, DE 19973
- Practice phone
- Call (302) 629-5217
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mid-Sussex Medical Center
Seaford, Delaware
Find Mary Gross' 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.
Mary Elizabeth Gross is an acute care nurse practitioner in Seaford, Delaware
Mary Gross practices at Mid-Sussex Medical Center in Seaford, Delaware.
Mary Gross' NPI, 1952646861, was assigned on December 4, 2012. Mary Gross holds Maryland license R168153.
- NPI
- 1952646861NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345494571
- NPI enumeration date
- December 4, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (302) 629-5217
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Elizabeth Gross practices at Mid-Sussex Medical Center in Seaford, Delaware
Mary Gross' primary practice is Mid-Sussex Medical Center, at 701 Middleford Rd, Seaford, DE 19973 in Sussex County. The practice phone is (302) 629-5217.
- Mid-Sussex Medical Center701 Middleford Rd, Seaford, DE 19973 · Sussex CountyPhone(302) 629-5217
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mary Elizabeth Gross is affiliated with 6 sites of care and 5 medical groups
Mary Gross' primary practice is Mid-Sussex Medical Center in Seaford, Delaware. Mary Gross is also affiliated with TidalHealth Nanticoke. The medical group on file is TidalHealth Cardiovascular Surgery. Dmand AI also links Mary Gross to 3 more hospitals, 4 medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mary Elizabeth Gross' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Gross practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mid-Sussex Medical Center | Available with a free account |
| +5 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary Elizabeth Gross is one of 53 acute care nurse practitioners in Delaware
Acute care is Mary Gross' primary specialty in the NPI Registry, under taxonomy code 363LA2100X. Mary Gross is licensed in Maryland.
Specialties and state licenses
- Acute care nurse practitioner, MarylandPrimary
Acute care nurse practitioners near Mary Gross
Counts of acute care nurse practitioners 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
Mary Elizabeth Gross treated 11 Medicare patients in 2024, average age 77
CMS counts 11 Medicare patients who saw Mary Gross in 2024. The largest group is under 65, with 0 patients. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mary Gross' median patient age at 70, with 65% women.
Mary Gross' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mary Gross' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women65%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mary Elizabeth Gross wrote 518 Medicare Part D claims in 2024
In 2024, Mary Gross wrote 518 Medicare Part D claims for 248 patients. 78% of them were for generic drugs.
Mary Gross' Part D claims by kind of drug, 2024
- Generic406 claims78%
- Brand-name112 claims22%
Drug classes CMS tracks in Mary Gross' Part D claims, 2024
- Opioids6%29 of 518 claims
- Antibiotics4%23 of 518 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 Mary Elizabeth Gross takes part in Medicare
Mary Gross 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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Mary Elizabeth Gross received $96 in industry payments in 2025
CMS Open Payments shows 4 general payments to Mary Gross from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $29.
Companies that paid Mary Gross 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 Mary Elizabeth Gross'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 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 Mary Elizabeth Gross
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Elizabeth Gross' NPI number?
Mary Elizabeth Gross' NPI number is 1952646861. It was assigned on December 4, 2012, and it is active in the NPI Registry.
What does Mary Elizabeth Gross specialize in?
Mary Elizabeth Gross is an acute care nurse practitioner in Seaford, Delaware. The primary specialty in the NPI Registry is Acute Care Nurse Practitioner (taxonomy code 363LA2100X).
Where does Mary Elizabeth Gross practice?
Mary Gross practices at 701 Middleford Rd, Seaford, DE 19973. Mary Gross' primary practice is Mid-Sussex Medical Center in Seaford, Delaware. Dmand AI also links Mary Gross to 3 hospitals, 4 medical groups and 1 group practice or clinic.
What is Mary Elizabeth Gross' office phone number?
The practice phone on file for Mary Gross is (302) 629-5217.
What is Mary Elizabeth Gross' medical license number?
Mary Gross holds Maryland license R168153.
Which hospitals is Mary Elizabeth Gross affiliated with?
Mary Gross is affiliated with TidalHealth Nanticoke. Dmand AI links Mary Gross to 3 more hospitals.
What medical group is Mary Elizabeth Gross part of?
Mary Gross is linked to TidalHealth Cardiovascular Surgery. Dmand AI links Mary Gross to 4 more medical groups.
Does Mary Elizabeth Gross accept Medicare?
Yes. CMS lists Mary Gross as accepting Medicare assignment.
How many Medicare patients does Mary Elizabeth Gross see?
CMS counts 11 Medicare patients who saw Mary Gross in 2024, with an average age of 77.
Has Mary Elizabeth Gross received payments from drug or device companies?
CMS Open Payments shows $96 in general payments to Mary Gross from 4 companies from 2025 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Mary Elizabeth Gross been practicing?
Mary Gross graduated from medical school in 2012, 14 years ago.
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