Dr. Damanpreet Kaur Grewal, MD
- Medicare services, 2024
- 66
- Medicare patients, 2024
- 77
- Part D claims, 2024
- 138
- Publications
- 4
- MIPS score, 2024
- 89
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- 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. Damanpreet Kaur Grewal is a gastroenterologist in Stanford, California
Dr. Grewal practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Grewal's NPI, 1275843765, was assigned on October 18, 2010. Dr. Grewal graduated from St. George's University School of Medicine in 2009. Dr. Grewal holds California license A133855.
- NPI
- 1275843765NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2769631894
- NPI enumeration date
- October 18, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Damanpreet Kaur Grewal practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Grewal's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Damanpreet Kaur Grewal is affiliated with 2 sites of care and 1 medical group
Dr. Grewal's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Grewal to 1 more hospital, named with a free account. Dr. Grewal's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Damanpreet Kaur Grewal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grewal practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Damanpreet Kaur Grewal is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Grewal's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Grewal is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Grewal's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists acid reflux, asthma, atrial fibrillation and flutter, chronic anemia, chronic obstructive pulmonary disease (COPD), cirrhosis of the liver, gastroenteritis and gastrointestinal bleeding among the conditions Dr. Grewal treats.
Gastroenterologists near Dr. Grewal
Counts of gastroenterologists 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. Damanpreet Kaur Grewal billed Medicare for 66 services in 2024
CMS data shows 66 Medicare services from Dr. Grewal across 2 procedure codes in 2024, all of them office visits, for 77 Medicare patients. Medicare paid $10,332 for them. Every service was in an office.
Dr. Grewal's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2562024: 6674%
- Other services
- 2023: 182024: 0100%
- Surgery
- 2023: 512024: 0100%
Dr. Grewal compared with the California median for gastroenterologists, 2024
- Dr. Grewal
- California median
- Medicare services
- 66vs 58689% below
- Medicare patients
- 77vs 30275% below
- Part D claims
- 65vs 38083% below
Medians across 1,875 gastroenterologists 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.
Need commercial claims for Dr. Grewal?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grewal and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Damanpreet Kaur Grewal treated 77 Medicare patients in 2024, average age 71
CMS counts 77 Medicare patients who saw Dr. Grewal in 2024. The largest group is 65 to 74, with 38 patients. 74% of them have high cholesterol, and 60% have high blood pressure. 34% are also on Medicaid. Their average risk score is 1.51, 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 49, with 66% 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
- Women5369%
- Men2431%
Chronic conditions among Dr. Grewal's Medicare patients, 2024
- High cholesterol74%
- High blood pressure60%
- Arthritis32%
- Osteoporosis27%
- Ischemic heart disease25%
- Anxiety23%
- Mood disorders22%
- Cancer21%
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 49
Patient panel by sex, all payers
- Women66%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Damanpreet Kaur Grewal wrote 138 Medicare Part D claims in 2024
In 2024, Dr. Grewal wrote 138 Medicare Part D claims for 59 patients. 68% of them were for generic drugs. CMS names the drug for 65 of them, across 4 drugs with 11 or more claims each, at $14,121 in total drug cost. In 2023, CMS named 198 claims across 7 drugs.
Dr. Grewal's Part D claims by kind of drug, 2024
- Generic94 claims68%
- Brand-name44 claims32%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1982024: 6567%
Drugs named by CMS: 4 in 2024, 7 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. Damanpreet Kaur Grewal scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Grewal for performance year 2024, reported as part of a group. Dr. Grewal accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Grewal as offering telehealth. CMS counts 25 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Grewal, more than 53% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Grewal's MIPS scores, performance year 2024
- 89of 100Final score
- 87.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Grewal ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 53rd percentile25 procedures
- Colonoscopy
- 42nd percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Damanpreet Kaur Grewal has 4 publications on record
Dmand AI links 4 papers to Dr. Grewal, published from 2015 to 2021. Dr. Grewal's most frequent co-authors are Philip Nnamdi Okafor, MD, Leila Neshatian Neshatian, MD and Irene Seungwan Sonu, MD.
Dr. Grewal's papers by year, 2015 to 2021
Dr. Grewal's most frequent co-authors
- Philip Nnamdi Okafor, MD3 shared papers
- Leila Neshatian Neshatian, MD2 shared papers
- Irene Seungwan Sonu, MD2 shared papers
Recent publications by Dr. Grewal
Dig Liver Dis
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 gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Damanpreet Kaur Grewal received $1,096 in industry payments from 2016 to 2025
CMS Open Payments shows 33 general payments to Dr. Grewal from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $807.
General payments to Dr. Grewal by program year, 2016 to 2025
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. Damanpreet Kaur Grewal serves on 1 committee
Dr. Grewal serves on SHC Patient Safety.
Dr. Grewal's committees and leadership roles
- SHC Patient SafetyCommittee member
- 2020 to present
Source: Dmand AI Professional Profile Data
Dr. Damanpreet Kaur Grewal graduated from St. George's University School of Medicine
Dr. Grewal graduated from St. George's University School of Medicine in 2009.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
- Board certified in obesity medicine
Source: Dmand AI Professional Profile Data
Dr. Damanpreet Kaur Grewal accepts plans from 9 insurance carriers
Dr. Grewal is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +1 more carriersWith a free account
Plan types Dr. Grewal accepts, by number of carriers
- Medicare6
- PPO5
- HMO3
- POS3
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Damanpreet Kaur 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Damanpreet Kaur 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. Damanpreet Kaur Grewal's NPI number?
Dr. Damanpreet Kaur Grewal's NPI number is 1275843765. It was assigned on October 18, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Damanpreet Kaur Grewal?
Dr. Damanpreet Kaur Grewal is a gastroenterologist in Stanford, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Damanpreet Kaur Grewal practice?
Dr. Grewal practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Grewal's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Grewal to 1 hospital.
What is Dr. Damanpreet Kaur Grewal's office phone number?
The practice phone on file for Dr. Grewal is (650) 723-4000.
What is Dr. Damanpreet Kaur Grewal's medical license number?
Dr. Grewal holds California license A133855, one of the licenses on file in 2 states.
Which states has Dr. Damanpreet Kaur Grewal been licensed in?
Dmand AI has state licenses on file for Dr. Grewal in California (2014 to 2026) and Pennsylvania (2009 to 2016).
Which hospitals is Dr. Damanpreet Kaur Grewal affiliated with?
Dr. Grewal practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Grewal to 1 more hospital.
What medical group is Dr. Damanpreet Kaur Grewal part of?
Dr. Grewal is linked to Stanford Health Care.
Does Dr. Damanpreet Kaur Grewal accept Medicare?
Yes. CMS data shows Dr. Grewal billed Medicare for 66 services in 2024, and Dr. Grewal accepts Medicare assignment.
Does Dr. Damanpreet Kaur Grewal offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Grewal as offering telehealth services.
Show 11 more questionsShow fewer questions
What is Dr. Damanpreet Kaur Grewal's MIPS score?
Dr. Grewal's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Damanpreet Kaur Grewal see?
CMS counts 77 Medicare patients who saw Dr. Grewal in 2024, with an average age of 71.
Is Dr. Damanpreet Kaur Grewal board certified?
Yes. Dr. Grewal is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. Damanpreet Kaur Grewal bill to Medicare?
In 2024, Dr. Grewal's most billed Medicare services were office visit, established patient (99215) and office visit, new patient (99205).
Where did Dr. Damanpreet Kaur Grewal go to medical school?
Dr. Grewal graduated from St. George's University School of Medicine in 2009.
What drugs does Dr. Damanpreet Kaur Grewal prescribe most?
In 2024 Medicare Part D data, Dr. Grewal's most prescribed drugs by claims were Omeprazole, Esomeprazole Magnesium and Linzess.
Has Dr. Damanpreet Kaur Grewal received payments from drug or device companies?
CMS Open Payments shows $1,096 in general payments to Dr. Grewal from 5 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Damanpreet Kaur Grewal been practicing?
Dr. Grewal graduated from medical school in 2009, 17 years ago.
Does Dr. Damanpreet Kaur Grewal do research?
Dmand AI links 4 publications to Dr. Grewal, published from 2015 to 2021.
Who does Dr. Damanpreet Kaur Grewal publish with?
Dr. Grewal's most frequent co-authors are Philip Nnamdi Okafor, MD (3 shared papers), Leila Neshatian Neshatian, MD (2 shared papers) and Irene Seungwan Sonu, MD (2 shared papers).
What insurance does Dr. Damanpreet Kaur Grewal accept?
Dr. Grewal is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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