Dr. Narinder Singh Grewal, MD
- Medicare services, 2024
- 1,830
- Medicare patients, 2024
- 124
- Part D claims, 2024
- 214
- Industry payments
- $5,337
- Affiliated sites
- 4
- Practice address
- 23861 McBean Pkwy, Valencia, CA 91355
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Santa Clarita Kidney Center - HOPD
Acute Care Hospital outpatient department · Valencia, California
Find Dr. Grewal's professional email, personal email and mobile number
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Dr. Narinder Singh Grewal is an interventional pain medicine physician in Valencia, California
Dr. Grewal practices at Santa Clarita Kidney Center - HOPD in Valencia, California.
Dr. Grewal's NPI, 1396783270, was assigned on June 3, 2006. Dr. Grewal graduated from Government Medical College Patiala in 1978. Dr. Grewal holds California license C42572.
- NPI
- 1396783270NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002855152
- NPI enumeration date
- June 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Narinder Singh Grewal practices at Santa Clarita Kidney Center - HOPD in Valencia, California
Dr. Grewal's primary practice is Santa Clarita Kidney Center - HOPD, at 23861 McBean Pkwy, Valencia, CA 91355.
- Santa Clarita Kidney Center - HOPD23861 McBean Pkwy, Valencia, CA 91355
Source: Dmand AI Affiliation Data
Dr. Narinder Singh Grewal is affiliated with 4 sites of care and 1 medical group
Dr. Grewal's primary practice is Santa Clarita Kidney Center - HOPD in Valencia, California. The medical group on file is Advanced Pain Management. Dmand AI also links Dr. Grewal to 1 more dialysis center, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Narinder Singh Grewal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grewal practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Clarita Kidney Center - HOPD | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Narinder Singh Grewal is one of 215 interventional pain medicine physicians in California
Interventional pain medicine is Dr. Grewal's primary specialty in the NPI Registry, under taxonomy code 208VP0014X. Dr. Grewal is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Grewal's licenses on file in 3 states: California, Michigan and Ohio.
Specialties and state licenses
- Interventional pain medicine, CaliforniaPrimary
- Michigan license
- Ohio license
Clinical focus
Dmand AI lists back pain injection, lower back pain, neck pain and spine problems, spinal stenosis and thoracic spine disorders among the conditions Dr. Grewal treats.
Interventional pain medicine physicians near Dr. Grewal
Counts of interventional pain medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Narinder Singh Grewal billed Medicare for 1,830 services in 2024
CMS data shows 1,830 Medicare services from Dr. Grewal across 16 procedure codes in 2024, for 124 Medicare patients. Medicare paid $185,375 for them.
Dr. Grewal's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4122024: 1,250203%
- Surgery
- 2023: 2792024: 52387%
- Lab and pathology
- 2023: 302024: 5790%
- Anesthesia
- 2023: 232024: 0100%
Where Dr. Grewal's Medicare services took place, 2024
- In an office1,30771%
- In a facility52329%
Dr. Grewal compared with the California median for interventional pain medicine physicians, 2024
- Dr. Grewal
- California median
- Medicare services
- 1,830vs 1,23249% above
- Medicare patients
- 124vs 20840% below
- Part D claims
- 93vs 34873% below
Medians across 209 interventional pain medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Grewal's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grewal and other interventional pain medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Narinder Singh Grewal treated 124 Medicare patients in 2024, average age 68
CMS counts 124 Medicare patients who saw Dr. Grewal in 2024. The largest group is 65 to 74, with 65 patients. 75% of them have arthritis, and 75% have high blood pressure. 67% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Grewal's median patient age at 64, with 61% women.
Dr. Grewal's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Grewal's Medicare patients by sex, 2024
- Women8669%
- Men3831%
Chronic conditions among Dr. Grewal's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol69%
- Anxiety38%
- Diabetes36%
- Mood disorders36%
- Depression33%
- COPD27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grewal's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women61%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Narinder Singh Grewal wrote 214 Medicare Part D claims in 2024
In 2024, Dr. Grewal wrote 214 Medicare Part D claims for 73 patients. 95% of them were for generic drugs. CMS names the drug for 93 of them, across 4 drugs with 11 or more claims each, at $3,384 in total drug cost. In 2023, CMS named 197 claims across 9 drugs.
Dr. Grewal's Part D claims by kind of drug, 2024
- Generic203 claims95%
- Brand-name11 claims5%
Dr. Grewal's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Grewal's Part D claims, 2024
- Opioids36%77 of 214 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1972024: 9353%
Drugs named by CMS: 4 in 2024, 9 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Narinder Singh Grewal offers telehealth to Medicare patients
Dr. Grewal accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Grewal as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Narinder Singh Grewal received $5,337 in industry payments from 2016 to 2025
CMS Open Payments shows 203 general payments to Dr. Grewal from 41 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 80% of the total. Boston Scientific Corporation paid the most, $1,485.
General payments to Dr. Grewal by program year, 2016 to 2025
General payments to Dr. Grewal by kind, 2016 to 2025
- Food and beverage$4,28880%
- Travel and lodging$1,05020%
Companies that paid Dr. Grewal the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Narinder Singh Grewal graduated from Government Medical College Patiala
Dr. Grewal graduated from Government Medical College Patiala in 1978.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Narinder Singh Grewal accepts plans from 4 insurance carriers
Dr. Grewal is in network with 4 carriers, including Aetna, Humana and Molina. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- Humana
- Molina
- CMS Medicare
Plan types Dr. Grewal accepts, by number of carriers
- Medicare4
- HMO2
- PPO2
- EPO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Narinder Singh Grewal's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Narinder Singh Grewal
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Narinder Singh Grewal's NPI number?
Dr. Narinder Singh Grewal's NPI number is 1396783270. It was assigned on June 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Narinder Singh Grewal?
Dr. Narinder Singh Grewal is an interventional pain medicine physician in Valencia, California. The primary specialty in the NPI Registry is Interventional Pain Medicine Physician (taxonomy code 208VP0014X).
Where does Dr. Narinder Singh Grewal practice?
Dr. Grewal practices at 23861 McBean Pkwy, Valencia, CA 91355. Dr. Grewal's primary practice is Santa Clarita Kidney Center - HOPD in Valencia, California. Dmand AI also links Dr. Grewal to 1 dialysis center, 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. Narinder Singh Grewal's medical license number?
Dr. Grewal holds California license C42572, one of the licenses on file in 3 states.
Which states has Dr. Narinder Singh Grewal been licensed in?
Dmand AI has state licenses on file for Dr. Grewal in California (1989 to 2026), Michigan (1981 to 1985) and Ohio (1982 to 1984).
What medical group is Dr. Narinder Singh Grewal part of?
Dr. Grewal is linked to Advanced Pain Management.
Does Dr. Narinder Singh Grewal accept Medicare?
Yes. CMS data shows Dr. Grewal billed Medicare for 1,830 services in 2024, and Dr. Grewal accepts Medicare assignment.
Does Dr. Narinder Singh Grewal offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Grewal as offering telehealth services.
How many Medicare patients does Dr. Narinder Singh Grewal see?
CMS counts 124 Medicare patients who saw Dr. Grewal in 2024, with an average age of 68.
Is Dr. Narinder Singh Grewal board certified?
Yes. Dr. Grewal is board certified in anesthesiology by the American Board of Anesthesiology.
Show 6 more questionsShow fewer questions
What services does Dr. Narinder Singh Grewal bill to Medicare?
In 2024, Dr. Grewal's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and surgery: brain, spine and nerves (64636).
Where did Dr. Narinder Singh Grewal go to medical school?
Dr. Grewal graduated from Government Medical College Patiala in 1978.
What drugs does Dr. Narinder Singh Grewal prescribe most?
In 2024 Medicare Part D data, Dr. Grewal's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Gabapentin and Oxycodone-Acetaminophen.
Has Dr. Narinder Singh Grewal received payments from drug or device companies?
CMS Open Payments shows $5,337 in general payments to Dr. Grewal from 41 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Narinder Singh Grewal been practicing?
Dr. Grewal graduated from medical school in 1978, 48 years ago.
What insurance does Dr. Narinder Singh Grewal accept?
Dr. Grewal is in network with 4 carriers, including Aetna, Humana and Molina. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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