DR. RICHARD R SUN MD
NPI 1962481150
Anesthesiology in Saint Louis, MO
About Dr. Richard R Sun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RICHARD R SUN MD (NPI 1962481150) is an individual anesthesiology provider in Saint Louis, Missouri, licensed in Missouri (2004018276) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1999).
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
Dr. Richard R Sun Md 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 Richard Sun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 106 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 3
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.
Hospital Affiliations CMS Care Compare 3
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, MOMercy Hospital Jefferson
Acute Care Hospitals · Festus, MOMercy Hospital South
Acute Care Hospitals · Saint Louis, MOOther 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 63128
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 Richard Sun's NPI number?
The NPI number for Richard Sun is 1962481150. It was assigned to this individual provider in the NPPES registry on January 16, 2006.
Where is Richard Sun located?
Richard Sun practices at 10010 Kennerly Rd, Saint Louis, MO 63128. The listed phone number is (636) 386-7222.
What is Richard Sun's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Richard Sun enrolled in Medicare?
Yes. Richard Sun 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 Richard Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Richard Sun reassigns Medicare benefits to South County Anesthesia Associates, Ltd. (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 Richard Sun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Richard Sun affiliated with any hospitals?
According to CMS data, Richard Sun is affiliated with Mercy Hospital St Louis, Mercy Hospital Jefferson and Mercy Hospital South.
When was this NPI record last updated?
The NPPES record for Richard Sun was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Richard R Sun, MD · NPI 1962481150
Anesthesiology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since January 16, 2006.
## Identity
- **NPI:** 1962481150 (Entity type: Individual)
- **Enumerated:** January 16, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 2004018276 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 10010 KENNERLY RD, Saint Louis, MO 63128-2106
- **Phone:** (636) 386-7222 · **Fax:** (636) 386-7810
## 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:** South County Anesthesia Associates, Ltd. (NPI 1821031659, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 1999
## Record status
- **NPPES last updated:** July 13, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1962481150) · Data from the CMS NPPES public registry.