MRS. MEGAN D. HAMILTON CRNA
NPI 1104061795
Nurse Anesthetist, Certified Registered in Saint Louis, MO
About Mrs. Megan D. Hamilton Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MEGAN D. HAMILTON CRNA (NPI 1104061795) is an individual nurse anesthetist, certified registered in Saint Louis, Missouri, licensed in Missouri (2003017713) and active in the NPI registry since December 2008. She is affiliated with Mercy Hospital St Louis and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Mrs. Megan D. 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 Megan Hamilton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 309 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.
Mercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63141 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.
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
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 Megan Hamilton's NPI number?
The NPI number for Megan Hamilton is 1104061795. It was assigned to this individual provider in the NPPES registry on December 10, 2008.
Where is Megan Hamilton located?
Megan Hamilton practices at 615 S New Ballas Rd Dept Of Anesthesia, Saint Louis, MO 63141. The listed phone number is (314) 251-4687.
What is Megan Hamilton's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Megan Hamilton enrolled in Medicare?
Yes. Megan 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 Megan Hamilton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Megan Hamilton reassigns Medicare benefits to Western Anesthesiology Associates, Inc. (Saint Louis, MO). 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 Megan Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Megan Hamilton affiliated with any hospitals?
According to CMS data, Megan Hamilton is affiliated with Mercy Hospital St Louis.
When was this NPI record last updated?
The NPPES record for Megan Hamilton was last updated on December 7, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Mrs. Megan D. Hamilton, CRNA · NPI 1104061795
Nurse Anesthetist, Certified Registered physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since December 10, 2008.
## Identity
- **NPI:** 1104061795 (Entity type: Individual)
- **Enumerated:** December 10, 2008
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 2003017713 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 615 S NEW BALLAS RD, DEPT OF ANESTHESIA, Saint Louis, MO 63141-8221
- **Phone:** (314) 251-4687 · **Fax:** (314) 251-4241
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Western Anesthesiology Associates, Inc. (NPI 1275646754, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** December 7, 2012
- **Other identifiers:** Medicare PIN 600290010 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1104061795) · Data from the CMS NPPES public registry.