TONG SAA CHAI M.D.
NPI 1568695286
Anesthesiology in Mount Kisco, NY
About Tong Saa Chai M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TONG SAA CHAI M.D. (NPI 1568695286) is an individual anesthesiology provider in Mount Kisco, New York, licensed in New York (292338) and active in the NPI registry since August 2009. He is enrolled in Medicare PECOS, is affiliated with Medstar Union Memorial Hospital, and maintains a secondary practice location in Brooklyn.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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 (PECOS)
Tong Saa Chai M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
14Medicare enrollment records show Tong Saa Chai reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 clinicians in this Medicare group
Melville, NY 11747
- Reassigned Medicare billing, New York enrollment
- 508 clinicians in this Medicare group
Elmhurst, NY 11373
- Reassigned Medicare billing, New York enrollment
- 19 clinicians in this Medicare group
Rego Park, NY 11374
- Reassigned Medicare billing, New York enrollment
- 34 clinicians in this Medicare group
Flushing, NY 11367
- Reassigned Medicare billing, New York enrollment
- 51 clinicians in this Medicare group
Jersey City, NJ 07310
- Reassigned Medicare billing, New York enrollment
- 38 clinicians in this Medicare group
New York, NY 10038
- Reassigned Medicare billing, New York enrollment
- 39 clinicians in this Medicare group
Valley Stream, NY 11581
- Reassigned Medicare billing, New York enrollment
- 305 clinicians in this Medicare group
Brooklyn, NY 11223
- Reassigned Medicare billing, New York enrollment
- 15 clinicians in this Medicare group
Philadelphia, PA 19103
- Reassigned Medicare billing, Pennsylvania enrollment
- 11 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 2
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medstar Union Memorial Hospital
Acute Care Hospitals · Baltimore, MDMedstar Good Samaritan Hospital
Acute Care Hospitals · Baltimore, MDRichmond University Medical Center
Acute Care Hospitals · Staten Island, NYWyckoff Heights Medical Center
Acute Care Hospitals · Brooklyn, NYTroy Community Hospital
Critical Access Hospitals · Troy, PAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MOUNT KISCO, NY 10549
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 Tong Saa Chai's NPI number?
The NPI number for Tong Saa Chai is 1568695286. It was assigned to this individual provider in the NPPES registry on August 27, 2009.
Where is Tong Saa Chai located?
Tong Saa Chai practices at 110 S Bedford Rd, Mount Kisco, NY 10549. The listed phone number is (914) 241-1050.
What is Tong Saa Chai's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Tong Saa Chai enrolled in Medicare?
Yes. Tong Saa Chai is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Tong Saa Chai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tong Saa Chai reassigns Medicare benefits to 14 organizations: Optum Medical Care, P.C. (Mount Kisco, NY), North American Partners In Anesthesia LLP (Melville, NY), Newtown Gastroenterology PC (Elmhurst, NY), Queens Boulevard ASC LLC (Rego Park, NY), New Day Medical PC (Flushing, NY) and 9 more organizations, listed in the Medicare section above. 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 Tong Saa Chai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Tong Saa Chai affiliated with any hospitals?
According to CMS data, Tong Saa Chai is affiliated with Medstar Union Memorial Hospital, Medstar Good Samaritan Hospital, Richmond University Medical Center, Wyckoff Heights Medical Center and Troy Community Hospital.
When was this NPI record last updated?
The NPPES record for Tong Saa Chai was last updated on May 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Tong Saa Chai, M.D. · NPI 1568695286
Anesthesiology physician in Mount Kisco, New York. Individual provider, active in the CMS NPPES registry since August 27, 2009.
## Identity
- **NPI:** 1568695286 (Entity type: Individual)
- **Enumerated:** August 27, 2009
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 292338 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 110 S BEDFORD RD, Mount Kisco, NY 10549-3446
- **Phone:** (914) 241-1050
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 14 organizations under Medicare reassignment (form CMS-855R): Optum Medical Care, P.C. (NPI 1982643003, Mount Kisco, NY); North American Partners In Anesthesia LLP (NPI 1649264706, Melville, NY); Newtown Gastroenterology PC (NPI 1134868045, Elmhurst, NY); Queens Boulevard ASC LLC (NPI 1558612762, Rego Park, NY); New Day Medical PC (NPI 1396131272, Flushing, NY); and 9 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** May 7, 2025
- **Other identifiers:** Medicaid 103133818 0001 (PA); Medicaid 05204999 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1568695286) · Data from the CMS NPPES public registry.