MS. EMILY ANN DREYER CRNA
NPI 1841567575
Nurse Anesthetist, Certified Registered in Saint Louis, MO
About Ms. Emily Ann Dreyer Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. EMILY ANN DREYER CRNA (NPI 1841567575) is an individual nurse anesthetist, certified registered in Saint Louis, Missouri, licensed in Missouri (2012002566) and active in the NPI registry since November 2011. She is affiliated with Mercy Hospital Perry and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Ms. Emily Ann Dreyer 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 Reassignments
2Medicare enrollment records show Emily Dreyer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 42 clinicians in this Medicare group
Perryville, MO 63775
- Reassigned Medicare billing, Missouri enrollment
- Also billed through NPI 1063117158 (Missouri)
- 192 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 Perry
Critical Access Hospitals · Perryville, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 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 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Emily Dreyer's NPI number?
The NPI number for Emily Dreyer is 1841567575. It was assigned to this individual provider in the NPPES registry on November 23, 2011.
Where is Emily Dreyer located?
Emily Dreyer practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. The listed phone number is (314) 362-6973.
What is Emily Dreyer's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Emily Dreyer enrolled in Medicare?
Yes. Emily Dreyer 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 Emily Dreyer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emily Dreyer reassigns Medicare benefits to 2 organizations: SW Anesthesia LLC (Saint Louis, MO) and Mercy Hospital Perry (Perryville, MO). 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 Emily Dreyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Emily Dreyer accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 1 other insurer list Emily Dreyer 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 Emily Dreyer affiliated with any hospitals?
According to CMS data, Emily Dreyer is affiliated with Mercy Hospital Perry.
When was this NPI record last updated?
The NPPES record for Emily Dreyer was last updated on November 8, 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.
# Ms. Emily Ann Dreyer, CRNA · NPI 1841567575
Nurse Anesthetist, Certified Registered physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since November 23, 2011.
## Identity
- **NPI:** 1841567575 (Entity type: Individual)
- **Enumerated:** November 23, 2011
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 2012002566 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BARNES JEWISH HOSPITAL PLZ, Saint Louis, MO 63110-1003
- **Phone:** (314) 362-6973 · **Fax:** (314) 362-1185
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): SW Anesthesia LLC (NPI 1306319769, Saint Louis, MO); Mercy Hospital Perry (NPI 1215613880, Perryville, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** November 8, 2012
- **Other identifiers:** Medicaid 500028564001 (IL); Medicaid 600420062 (MO); Medicare PIN 600420062 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1841567575) · Data from the CMS NPPES public registry.