MRS. NATALIE WONG CALHOON M.D.
NPI 1487650768
Anesthesiology in St Louis, MO
About Mrs. Natalie Wong Calhoon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. NATALIE WONG CALHOON M.D. (NPI 1487650768) is an individual anesthesiology provider in St Louis, Missouri, licensed in Missouri (R1G98) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS and is a graduate of University Of Missouri, Kansas City, School Of Medicine (1985).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
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. Natalie Wong Calhoon M.d. 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 Natalie Calhoon reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 56 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 309 clinicians in this Medicare group
Saint Louis, MO 63131
- Reassigned Medicare billing, Missouri enrollment
- 69 clinicians in this Medicare group
Saint Louis, MO 63122
- Reassigned Medicare billing, Missouri enrollment
- 27 clinicians in this Medicare group
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 42 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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 Natalie Calhoon's NPI number?
The NPI number for Natalie Calhoon is 1487650768. It was assigned to this individual provider in the NPPES registry on June 22, 2005. The provider is also known as Mrs. Genevieve Natalie Wong M.D..
Where is Natalie Calhoon located?
Natalie Calhoon practices at 615 S New Ballas Rd Labor And Delivery, St Louis, MO 63141. The listed phone number is (314) 469-6800.
What is Natalie Calhoon's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Natalie Calhoon enrolled in Medicare?
Yes. Natalie Calhoon 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 Natalie Calhoon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Natalie Calhoon reassigns Medicare benefits to 5 organizations: Premier Anesthesia LLC (Saint Louis, MO), Western Anesthesiology Associates, Inc. (Saint Louis, MO), Eye Anesthesia LLC (Saint Louis, MO), Gateway Anesthesia Group LLC (Saint Louis, MO) and SW Anesthesia LLC (Saint Louis, 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 Natalie Calhoon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Natalie Calhoon was last updated on July 28, 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.
# Mrs. Natalie Wong Calhoon, M.D. · NPI 1487650768
Anesthesiology physician in St Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 22, 2005.
## Identity
- **NPI:** 1487650768 (Entity type: Individual)
- **Enumerated:** June 22, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** R1G98 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 615 S NEW BALLAS RD, LABOR AND DELIVERY, St Louis, MO 63141
- **Phone:** (314) 469-6800
## 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): Premier Anesthesia LLC (NPI 1225073828, Saint Louis, MO); Western Anesthesiology Associates, Inc. (NPI 1275646754, Saint Louis, MO); Eye Anesthesia LLC (NPI 1528334182, Saint Louis, MO); Gateway Anesthesia Group LLC (NPI 1457040479, Saint Louis, MO); SW Anesthesia LLC (NPI 1306319769, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Missouri, Kansas City, School Of Medicine, class of 1985
## Record status
- **NPPES last updated:** July 28, 2021
- **Other identifiers:** Other 1492 (MO); Medicaid 202664710 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1487650768) · Data from the CMS NPPES public registry.