MARY ELIZABETH GROSS ACNP
NPI 1952646861
Nurse Practitioner - Acute Care in Glen Burnie, MD
About Mary Elizabeth Gross Acnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY ELIZABETH GROSS ACNP (NPI 1952646861) is an individual acute care provider in Glen Burnie, Maryland, licensed in Maryland (R168153) and active in the NPI registry since December 2012. She is enrolled in Medicare PECOS, is affiliated with Tidalhealth Peninsula Regional, Inc, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mary Elizabeth Gross Acnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Mary Gross reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Glen Burnie, MD 21061
- Reassigned Medicare billing, Maryland enrollment
- 966 clinicians in this Medicare group
Seaford, DE 19973
- Reassigned Medicare billing, Delaware and Maryland enrollments
- 179 clinicians in this Medicare group
Salisbury, MD 21801
- Reassigned Medicare billing, Maryland enrollment
- 531 clinicians in this Medicare group
Lewes, DE 19958
- Reassigned Medicare billing, Delaware enrollment
- 382 clinicians in this Medicare group
Lewes, DE 19958
- Reassigned Medicare billing, Delaware enrollment
- 23 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Tidalhealth Peninsula Regional, Inc
Acute Care Hospitals · Salisbury, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21061 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GLEN BURNIE, MD 21061
GLEN BURNIE, MD 21061
GLEN BURNIE, MD 21061
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mary Gross's NPI number?
The NPI number for Mary Gross is 1952646861. It was assigned to this individual provider in the NPPES registry on December 4, 2012. The provider is also known as Mary Sykes.
Where is Mary Gross located?
Mary Gross practices at 301 Hospital Dr, Glen Burnie, MD 21061. The listed phone number is (410) 787-4000.
What is Mary Gross's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Mary Gross enrolled in Medicare?
Yes. Mary Gross is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mary Gross's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Gross reassigns Medicare benefits to 5 organizations: University Of Maryland Community Medical Group, Inc. (Glen Burnie, MD), Tidalhealth Physician Network, Inc. (Seaford, DE), Tidalhealth Specialty Care, LLC (Salisbury, MD), Beebe Physician Network, Inc. (Lewes, DE) and Beebe Medical Center, Inc. (Lewes, DE). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Gross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Gross accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Mary Gross as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mary Gross affiliated with any hospitals?
According to CMS data, Mary Gross is affiliated with Tidalhealth Peninsula Regional, Inc.
When was this NPI record last updated?
The NPPES record for Mary Gross was last updated on May 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mary Elizabeth Gross, ACNP · NPI 1952646861
Acute Care physician in Glen Burnie, Maryland. Individual provider, active in the CMS NPPES registry since December 4, 2012.
## Identity
- **NPI:** 1952646861 (Entity type: Individual)
- **Enumerated:** December 4, 2012
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** R168153 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 301 HOSPITAL DR, Glen Burnie, MD 21061-5803
- **Phone:** (410) 787-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): University Of Maryland Community Medical Group, Inc. (NPI 1295367894, Glen Burnie, MD); Tidalhealth Physician Network, Inc. (NPI 1467534636, Seaford, DE); Tidalhealth Specialty Care, LLC (NPI 1619504735, Salisbury, MD); Beebe Physician Network, Inc. (NPI 1730133992, Lewes, DE); Beebe Medical Center, Inc. (NPI 1821196486, Lewes, DE) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** May 20, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1952646861) · Data from the CMS NPPES public registry.