Narinder Singh Grewal, MD
Interventional Pain Medicine Physician · Valencia, CA
Narinder Singh Grewal, MD is an interventional pain medicine physician with a practice address in Valencia, California, and NPI 1396783270, issued on Jun 3, 2006. Check the license (California C42572, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Narinder Singh Grewal
- Credential
- MD
- Primary taxonomy
- Interventional Pain Medicine Physician 208VP0014X
- License number
- C42572 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23861 Mcbean Pkwy, Valencia, CA 91355
- Phone
- (661) 288-5700
- Enumerated
- Jun 3, 2006
- Record last updated
- Jan 31, 2024
- Fax
- (661) 288-5703
- Medicare enrollment
- Enrolled (PECOS I20050427001312); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest interventional pain medicine physician records → All 219 in California → Look up another NPI →
Also registered at 23861 Mcbean Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Narinder Singh Grewal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C42572Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average interventional pain medicine physician in 2024
214 Medicare Part D claims for 73 beneficiaries, against an average of 2,306 among the 2,100 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 77 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen29 claims
- Gabapentin23 claims
- Oxycodone-Acetaminophen23 claims
- Ibuprofen18 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $63.73
2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 1,966 providers of this specialty with any payment received $3,889.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Advanced Pain Management Medical GroupValencia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Narinder Singh Grewal among 219 interventional pain medicine physician records in California
Narinder Singh Grewal, MD is one of 219 interventional pain medicine physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 55% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1978 · median 2003 among the 167 with a school on file
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208VP0014X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Pain Medicine Physician providers in California
There are 219 interventional pain medicine physician records in California.
All 219 in California → Every provider in Valencia → Interventional Pain Medicine Physician nationwide →
The 8 interventional pain medicine physician records with the nearest ZIP codes
- Raj Desai, MDValencia, CA 913551508258559
- David Hoenig, M.D.Tarzana, CA 913561225125529
- Kamyar Assil, MDThousand Oaks, CA 913601750321568
- Shaaron Zaghi, MDWoodland Hills, CA 913651215191242
- Muthukumar Vaidyaraman, MD,FIPP, MBAPorter Ranch, CA 913261003928565
- Johannes Ramirez, MDNorthridge, CA 913241063446896
- Sarah O'Brien, M.D.Panorama City, CA 914021134446727
- Raul Calderon, M.D.Sherman Oaks, CA 914031134396492
Common questions
What is Narinder Singh Grewal, MD's NPI number?
Narinder Singh Grewal, MD's National Provider Identifier (NPI) is 1396783270, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Narinder Singh Grewal, MD located?
The NPPES record lists a practice address at 23861 Mcbean Pkwy, Valencia, CA, 91355. Phone: (661) 288-5700. Providers update this record themselves, so call before visiting.
How can I verify Narinder Singh Grewal, MD's license?
NPPES lists California license number C42572, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Narinder Singh Grewal, MD prescribe under Medicare Part D?
In 2024, Narinder Singh Grewal, MD had 214 Medicare Part D claims for 73 beneficiaries; the average among interventional pain medicine physician prescribers was 2,306. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.