The Effect of Statins on Markers of Breast Cancer Proliferation and Apoptosis in Women With Early Stage Breast Cancer (opens in a new tab)
CompletedPhase 2
Breast NeoplasmsBreast DiseasesSimvastatin
Dr. Sandeep S. Grewal, MD
NPI1932315124PAC ID8426129222
- Medicare services, 2024
- 1,568
- Medicare patients, 2024
- 575
- Part D claims, 2024
- 4,262
- Publications
- 2
- Clinical trials
- 1
- Practice address
- 401 S Ballenger Highway, Flint, MI 48532
- Practice phone
- Call (810) 342-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Grewal's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Sandeep S. Grewal is a hematologist and oncologist in Flint, Michigan
Dr. Grewal practices at McLaren Flint in Flint, Michigan, part of McLaren Health Care.
Dr. Grewal's NPI, 1932315124, was assigned on May 15, 2007. Dr. Grewal holds Michigan license 4301085206.
NPI and contact details
- NPI
- 1932315124NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426129222
- NPI enumeration date
- May 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (810) 342-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sandeep S. Grewal practices at McLaren Flint in Flint, Michigan
Dr. Grewal's primary practice is McLaren Flint, at 401 S Ballenger Highway, Flint, MI 48532 in Genesee County. The practice phone is (810) 342-2000.
- McLaren Flint401 S Ballenger Highway, Flint, MI 48532 · Genesee CountyPhone(810) 342-2000
Source: Dmand AI Affiliation Data
Dr. Sandeep S. Grewal is affiliated with 6 sites of care and 5 medical groups
Dr. Grewal's primary practice is McLaren Flint in Flint, Michigan, part of McLaren Health Care. Dr. Grewal is also affiliated with Hurley Medical Center. The medical group on file is McLaren Flint. Dmand AI also links Dr. Grewal to 2 more hospitals, 4 medical groups and 2 group practices and clinics, each named with a free account. Dr. Grewal's employer is on file too: a hospital.
Hurley Medical CenterMcLaren Flint2 hospitalsNames with a free account4 medical groupsNames with a free account2 group practices and clinicsNames with a free accountEmployer: hospitalName with a free account
See all 11 affiliations for Dr. GrewalSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sandeep S. Grewal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grewal practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McLaren Flint | Available with a free account |
| +5 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Grewal practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across McLaren Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Sandeep S. Grewal is one of 298 hematologists and oncologists in Michigan
Hematology and oncology is Dr. Grewal's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Grewal is licensed in Michigan.
Specialties and state licenses
- Hematology and oncology, MichiganPrimary
Hematologists and oncologists near Dr. Grewal
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
298hematologists and oncologists in Michigan13hematologists and oncologists in Flint2hematologists and oncologists at McLaren Flint
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Sandeep S. Grewal billed Medicare for 1,568 services in 2024
CMS data shows 1,568 Medicare services from Dr. Grewal across 9 procedure codes in 2024, for 575 Medicare patients. Medicare paid $136,824 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20241,568
Medicare patients575
Paid by Medicare$136,824
Procedure codes9
Dr. Grewal's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2952024: 1,56821%
- Surgery
- 2023: 192024: 0100%
Dr. Grewal compared with the Michigan median for hematologists and oncologists, 2024
- Dr. Grewal
- Michigan median
- Medicare services
- 1,568vs 6192.5 times
- Medicare patients
- 575vs 2282.5 times
- Part D claims
- 3,853vs 37810.2 times
Medians across 291 hematologists and oncologists in Michigan 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.
Need commercial claims for Dr. Grewal?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grewal and other hematologists and oncologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sandeep S. Grewal treated 575 Medicare patients in 2024, average age 74
CMS counts 575 Medicare patients who saw Dr. Grewal in 2024. The largest group is 65 to 74, with 232 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 2.01, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Grewal's median patient age at 76, with 58% women.
Medicare patients, 2024575
Average age74
Average risk score2.01
Also on Medicaid16%
Dr. Grewal's Medicare patients by age, 2024
Dr. Grewal's Medicare patients by sex, 2024
- Women33558%
- Men24042%
Chronic conditions among Dr. Grewal's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer51%
- Arthritis46%
- Chronic kidney disease40%
- Ischemic heart disease39%
- Diabetes37%
- COPD34%
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 76
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sandeep S. Grewal wrote 4,262 Medicare Part D claims in 2024
In 2024, Dr. Grewal wrote 4,262 Medicare Part D claims for 673 patients. 76% of them were for generic drugs. CMS names the drug for 3,853 of them, across 75 drugs with 11 or more claims each, at $7,783,112 in total drug cost. In 2023, CMS named 2,758 claims across 65 drugs.
Part D claims, 20244,262
Drugs named by CMS75
Total drug cost$7.8M
Part D patients673
Dr. Grewal's Part D claims by kind of drug, 2024
- Generic3,226 claims76%
- Brand-name1,023 claims24%
- Other13 claims0%
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
- Opioids11%490 of 4,262 claims
- Antibiotics2%94 of 4,262 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: 2,7582024: 3,85340%
Drugs named by CMS: 75 in 2024, 65 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
How Dr. Sandeep S. Grewal takes part in Medicare
Dr. Grewal accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find hematologists and oncologists like Dr. Grewal by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Sandeep S. Grewal has 2 publications on record
Dmand AI links 2 papers to Dr. Grewal, published from 2014 to 2018. Dr. Grewal's most frequent co-authors are Madan L. Arora, MD, Mustafa Alnounou, MD and Kiran Devisetty, MD.
Papers2
Years published2014 to 2018
Dr. Grewal's most frequent co-authors
- Madan L. Arora, MD2 shared papers
- Mustafa Alnounou, MD1 shared paper
- Kiran Devisetty, MD1 shared paper
Recent publications by Dr. Grewal
See who Dr. Grewal researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Grewal works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Sandeep S. Grewal has worked on 1 clinical trial
Dmand AI links Dr. Grewal to 1 clinical trial. Conditions studied include Breast Neoplasms and Breast Diseases.
Conditions in Dr. Grewal's trials
- Breast Neoplasms
- Breast Diseases
Investigators on the most trials with Dr. Grewal
- Jonathan D. Abramson, MD1 shared trial
- Madan L. Arora, MD1 shared trial
- Hadeel Salim Assad, MD1 shared trial
Recent clinical trials with Dr. Grewal
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Sandeep S. Grewal received $8,961 in industry payments from 2016 to 2025
CMS Open Payments shows 348 general payments to Dr. Grewal from 54 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. Genentech, Inc. paid the most, $930.
General payments to Dr. Grewal by program year, 2016 to 2025
General payments to Dr. Grewal by kind, 2016 to 2025
$9Kin total
- Food and beverage$8,46194%
- Education$5006%
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
Sources for Dr. Sandeep S. 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 DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Sandeep S. 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. Sandeep S. Grewal's NPI number?
Dr. Sandeep S. Grewal's NPI number is 1932315124. It was assigned on May 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Sandeep S. Grewal?
Dr. Sandeep S. Grewal is a hematologist and oncologist in Flint, Michigan. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Sandeep S. Grewal practice?
Dr. Grewal practices at 401 S Ballenger Highway, Flint, MI 48532. Dr. Grewal's primary practice is McLaren Flint in Flint, Michigan, part of McLaren Health Care. Dmand AI also links Dr. Grewal to 2 hospitals, 4 medical groups and 2 group practices and clinics.
What is Dr. Sandeep S. Grewal's office phone number?
The practice phone on file for Dr. Grewal is (810) 342-2000.
What is Dr. Sandeep S. Grewal's medical license number?
Dr. Grewal holds Michigan license 4301085206.
Which hospitals is Dr. Sandeep S. Grewal affiliated with?
Dr. Grewal practices at McLaren Flint in Flint, Michigan. Dr. Grewal is also affiliated with Hurley Medical Center. Dmand AI links Dr. Grewal to 2 more hospitals.
What medical group is Dr. Sandeep S. Grewal part of?
Dr. Grewal is linked to McLaren Flint. Dmand AI links Dr. Grewal to 4 more medical groups.
Does Dr. Sandeep S. Grewal accept Medicare?
Yes. CMS data shows Dr. Grewal billed Medicare for 1,568 services in 2024, and Dr. Grewal accepts Medicare assignment.
How many Medicare patients does Dr. Sandeep S. Grewal see?
CMS counts 575 Medicare patients who saw Dr. Grewal in 2024, with an average age of 74.
What services does Dr. Sandeep S. Grewal bill to Medicare?
In 2024, Dr. Grewal's most billed Medicare services were office visit, established patient (99215), office visit, established patient (99214) and hospital inpatient care (99233).
Show 5 more questionsShow fewer questions
What drugs does Dr. Sandeep S. Grewal prescribe most?
In 2024 Medicare Part D data, Dr. Grewal's most prescribed drugs by claims were Anastrozole, Hydrocodone-Acetaminophen and Eliquis.
Has Dr. Sandeep S. Grewal received payments from drug or device companies?
CMS Open Payments shows $8,961 in general payments to Dr. Grewal from 54 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Sandeep S. Grewal been practicing?
Dr. Grewal graduated from medical school in 2002, 24 years ago.
Does Dr. Sandeep S. Grewal do research?
Dmand AI links 2 publications to Dr. Grewal, published from 2014 to 2018. Dr. Grewal has worked on 1 clinical trial.
Who does Dr. Sandeep S. Grewal publish with?
Dr. Grewal's most frequent co-authors are Madan L. Arora, MD (2 shared papers), Mustafa Alnounou, MD (1 shared paper) and Kiran Devisetty, MD (1 shared paper).
Selling to hematology and oncology practices?
See hematologists and oncologists in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card