Dr. Narinder Grewal, MD
What this data tells you about Dr. Grewal
Dr. Narinder Grewal is an interventional pain medicine physician in Valencia, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Grewal performed 744 Medicare services across 548 unique beneficiaries.
Between the years covered by Open Payments, Dr. Grewal received a total of $3,021 from 30 pharmaceutical and/or device companies across 106 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in interventional pain medicine physician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Grewal is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
166 | $68 | $450 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
138 | $110 | $550 |
| Telephone medical discussion, 21-30 minutes A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone. |
83 | $109 | $550 |
| Additional sacral spine nerve root injection with imaging An injection of anesthetic and/or steroid medication into an additional sacral spine nerve root level, guided by imaging. |
61 | $43 | $2,254 |
| Sacral spine nerve root injection with imaging guidance An injection of anesthetic and/or steroid medication into a sacral spine nerve root. The procedure uses imaging guidance to ensure accurate placement. |
59 | $94 | $2,263 |
| Facet joint nerve destruction, additional joint This procedure uses imaging guidance to destroy nerves in an additional lower or sacral spinal facet joint. |
36 | $71 | $2,278 |
| Facet joint nerve destruction, single joint A procedure to destroy nerves in a single lower or sacral spinal facet joint using imaging guidance to target pain signals. |
35 | $234 | $2,729 |
| Drug test with direct observation A drug screening test performed under direct observation to ensure the sample is provided correctly. This method is used to verify the integrity of the specimen collection process. |
30 | $12 | $25 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
25 | $74 | $1,000 |
| Anesthesia for lower spine procedure Administration of anesthesia for surgical procedures involving the lower spine. |
23 | $148 | $675 |
| Spinal injection with imaging guidance A procedure where medication is injected into the middle or upper part of the spinal canal. Imaging technology is used to guide the needle to the correct location. |
19 | $81 | $3,842 |
| Facet joint nerve destruction, single joint This procedure uses imaging guidance to destroy the nerves supplying a single upper or middle spinal facet joint. It is performed to interrupt pain signals from that specific joint. |
19 | $236 | $2,526 |
| Facet joint nerve destruction, additional joint This procedure uses imaging guidance to destroy nerves in an additional upper or middle spinal facet joint. |
19 | $83 | $2,132 |
| Facet joint injection, second level, with imaging An injection into a second spinal facet joint in the upper or middle spine, guided by imaging to ensure accurate placement. |
16 | $66 | $1,500 |
| Spine facet joint injection with imaging guidance, single level An injection is administered into a single facet joint of the upper or middle spine while using imaging guidance to ensure accurate placement. |
15 | $118 | $3,000 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Grewal is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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