ALLISON MARIE HAMILTON CRNA
NPI 1215772330
Nurse Anesthetist, Certified Registered in Baltimore, MD
About Allison Marie Hamilton Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON MARIE HAMILTON CRNA (NPI 1215772330) is an individual nurse anesthetist, certified registered in Baltimore, Maryland, licensed in Maryland (R225446) and active in the NPI registry since June 2024. She is affiliated with Medstar Franklin Square Medical Center and is a graduate of Other (2026).
NPPES Registry Identity
Specialties & Licenses
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
Allison Marie Hamilton Crna 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 Reassignment
Medicare enrollment records show Allison Hamilton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21239
- Reassigned Medicare billing, Maryland enrollment
- 2,602 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.
Medstar Franklin Square Medical Center
Acute Care Hospitals · Rosedale, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21237 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BALTIMORE, MD 21237
BALTIMORE, MD 21237
BALTIMORE, MD 21237
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 Allison Hamilton's NPI number?
The NPI number for Allison Hamilton is 1215772330. It was assigned to this individual provider in the NPPES registry on June 29, 2024.
Where is Allison Hamilton located?
Allison Hamilton practices at 9000 Franklin Square Dr, Baltimore, MD 21237. The listed phone number is (443) 777-7000.
What is Allison Hamilton's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Allison Hamilton enrolled in Medicare?
Yes. Allison Hamilton 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 organization bills Medicare for Allison Hamilton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Hamilton reassigns Medicare benefits to Medstar Medical Group II LLC (Baltimore, MD). The 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 Allison Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Allison Hamilton affiliated with any hospitals?
According to CMS data, Allison Hamilton is affiliated with Medstar Franklin Square Medical Center.
When was this NPI record last updated?
The NPPES record for Allison Hamilton was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# Allison Marie Hamilton, CRNA · NPI 1215772330
Nurse Anesthetist, Certified Registered physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 29, 2024.
## Identity
- **NPI:** 1215772330 (Entity type: Individual)
- **Enumerated:** June 29, 2024
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** R225446 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 9000 FRANKLIN SQUARE DR, Baltimore, MD 21237-3901
- **Phone:** (443) 777-7000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2026
## Record status
- **NPPES last updated:** July 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1215772330) · Data from the CMS NPPES public registry.