Dr. Rinko Grewal, DO
- Medicare services, 2024
- 359
- Medicare patients, 2024
- 146
- Part D claims, 2024
- 270
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital
School-Based Health Center · Ann Arbor, Michigan
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. Rinko Grewal is an internist in Ann Arbor, Michigan
Dr. Grewal practices at University Hospital in Ann Arbor, Michigan.
Dr. Grewal's NPI, 1659995777, was assigned on June 4, 2020. Dr. Grewal holds Michigan license 5101027456.
- NPI
- 1659995777NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648693762
- NPI enumeration date
- June 4, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rinko Grewal practices at University Hospital in Ann Arbor, Michigan
Dr. Grewal's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.
- University Hospital1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000
Source: Dmand AI Affiliation Data
Dr. Rinko Grewal is affiliated with 2 sites of care and 1 medical group
Dr. Grewal's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Grewal is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dr. Grewal's employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rinko 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 |
|---|---|
| University Hospital | 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. Rinko Grewal is one of 4,804 internists in Michigan
Internal medicine is Dr. Grewal's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Grewal is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Grewal
Counts of internists 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. Rinko Grewal billed Medicare for 359 services in 2024
CMS data shows 359 Medicare services from Dr. Grewal across 4 procedure codes in 2024, for 146 Medicare patients. Medicare paid $30,827 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Grewal's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1222024: 359194%
Dr. Grewal compared with the Michigan median for internists, 2024
- Dr. Grewal
- Michigan median
- Medicare services
- 359vs 42315% below
- Medicare patients
- 146vs 1598% below
- Part D claims
- 88vs 31472% below
Medians across 4,524 internists 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 internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rinko Grewal treated 146 Medicare patients in 2024, average age 71
CMS counts 146 Medicare patients who saw Dr. Grewal in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.38, 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 52, with 55% women.
Dr. Grewal's Medicare patients by age, 2024
Dr. Grewal's Medicare patients by sex, 2024
- Women7149%
- Men7551%
Chronic conditions among Dr. Grewal's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Mood disorders53%
- Anxiety49%
- Depression45%
- Diabetes42%
- Ischemic heart disease42%
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 52
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rinko Grewal wrote 270 Medicare Part D claims in 2024
In 2024, Dr. Grewal wrote 270 Medicare Part D claims for 121 patients. 91% of them were for generic drugs. CMS names the drug for 88 of them, across 7 drugs with 11 or more claims each, at $889 in total drug cost. In 2023, CMS named 133 claims across 8 drugs.
Dr. Grewal's Part D claims by kind of drug, 2024
- Generic245 claims91%
- Brand-name and other25 claims9%
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
- Opioids5%14 of 270 claims
- Antibiotics16%44 of 270 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: 1332024: 8834%
Drugs named by CMS: 7 in 2024, 8 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. Rinko 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. Rinko Grewal has 1 publication on record
Dmand AI links 1 paper to Dr. Grewal in 2016. Dr. Grewal's most frequent co-author is Amanda G. Smith, MD.
Dr. Grewal's most frequent co-authors
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 internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Rinko Grewal received $692 in industry payments from 2020 to 2023
CMS Open Payments shows 22 general payments to Dr. Grewal from 8 drug and device companies from 2020 to 2023. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $187.
General payments to Dr. Grewal by program year, 2020 to 2023
Companies that paid Dr. Grewal the most, 2020 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Rinko 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 |
| 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. Rinko 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. Rinko Grewal's NPI number?
Dr. Rinko Grewal's NPI number is 1659995777. It was assigned on June 4, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Rinko Grewal?
Dr. Rinko Grewal is an internist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Rinko Grewal practice?
Dr. Grewal practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Grewal's primary practice is University Hospital in Ann Arbor, Michigan.
What is Dr. Rinko Grewal's office phone number?
The practice phone on file for Dr. Grewal is (734) 936-4000.
What is Dr. Rinko Grewal's medical license number?
Dr. Grewal holds Michigan license 5101027456.
Which hospitals is Dr. Rinko Grewal affiliated with?
Dr. Grewal is affiliated with University Hospital.
What medical group is Dr. Rinko Grewal part of?
Dr. Grewal is linked to University of Michigan Health.
Does Dr. Rinko Grewal accept Medicare?
Yes. CMS data shows Dr. Grewal billed Medicare for 359 services in 2024, and Dr. Grewal accepts Medicare assignment.
Does Dr. Rinko Grewal offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Grewal as offering telehealth services.
How many Medicare patients does Dr. Rinko Grewal see?
CMS counts 146 Medicare patients who saw Dr. Grewal in 2024, with an average age of 71.
Show 6 more questionsShow fewer questions
What services does Dr. Rinko Grewal bill to Medicare?
In 2024, Dr. Grewal's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
What drugs does Dr. Rinko Grewal prescribe most?
In 2024 Medicare Part D data, Dr. Grewal's most prescribed drugs by claims were Metoprolol Succinate, Amoxicillin-Clavulanate Potass and Oxycodone HCl.
Has Dr. Rinko Grewal received payments from drug or device companies?
CMS Open Payments shows $692 in general payments to Dr. Grewal from 8 companies from 2020 to 2023. The largest total came from Inari Medical, Inc.
How long has Dr. Rinko Grewal been practicing?
Dr. Grewal graduated from medical school in 2020, 6 years ago.
Does Dr. Rinko Grewal do research?
Dmand AI links 1 publication to Dr. Grewal.
Who does Dr. Rinko Grewal publish with?
Dr. Grewal's most frequent co-authors are Amanda G. Smith, MD (1 shared paper).
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