SHAUN GOBIND SINGH GREWAL M.D.
NPI 1972764496
Urology in Tulsa, OK
About Shaun Gobind Singh Grewal M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHAUN GOBIND SINGH GREWAL M.D. (NPI 1972764496) is an individual urology provider in Tulsa, Oklahoma, licensed in Oklahoma (29661) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Ascension St John Medical Center, and is a graduate of University Of Oklahoma College Of Medicine (2008).
NPPES Registry Identity
Specialties & Licenses 2
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
Shaun Gobind Singh Grewal 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
4Medicare enrollment records show Shaun Grewal reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tulsa, OK 74146
- Reassigned Medicare billing, Arkansas, Missouri and Oklahoma enrollments
- 29 clinicians in this Medicare group
Mcalester, OK 74501
- Reassigned Medicare billing, Oklahoma enrollment
- 47 clinicians in this Medicare group
Columbus, KS 66725
- Reassigned Medicare billing, Missouri enrollment
- 562 clinicians in this Medicare group
Cassville, MO 65625
- Reassigned Medicare billing, Missouri enrollment
- Also billed through NPI 1245277631 (Missouri)
- 1,487 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 41
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension St John Medical Center
Acute Care Hospitals · Tulsa, OKOklahoma Surgical Hospital, LLC
Acute Care Hospitals · Tulsa, OKSt John Owasso
Acute Care Hospitals · Owasso, OKAscension St John Broken Arrow
Acute Care Hospitals · Broken Arrow, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74146 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 13
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
TULSA, OK 74146
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 Shaun Grewal's NPI number?
The NPI number for Shaun Grewal is 1972764496. It was assigned to this individual provider in the NPPES registry on June 18, 2008.
Where is Shaun Grewal located?
Shaun Grewal practices at 10901 E 48th St, Tulsa, OK 74146. The listed phone number is (918) 749-8765.
What is Shaun Grewal's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Shaun Grewal enrolled in Medicare?
Yes. Shaun Grewal 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 Shaun Grewal's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Shaun Grewal reassigns Medicare benefits to 4 organizations: Urologic Specialists Of Oklahoma Inc (Tulsa, OK), Mcalester Medical Services, LLC (Mcalester, OK), Mercy Clinic Joplin LLC (Columbus, KS) and Mercy Clinic Springfield Communities (Cassville, 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 Shaun Grewal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Shaun Grewal accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Sunflower Health Plan and Ambetter from Superior HealthPlan and 8 other insurers list Shaun Grewal 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 Shaun Grewal affiliated with any hospitals?
According to CMS data, Shaun Grewal is affiliated with Ascension St John Medical Center, Oklahoma Surgical Hospital, LLC, St John Owasso and Ascension St John Broken Arrow.
When was this NPI record last updated?
The NPPES record for Shaun Grewal was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.