Dr. Thomas E. Gribbin, MD
- Medicare services, 2024
- 2,574
- Medicare patients, 2024
- 274
- Part D claims, 2024
- 1,846
- Publications
- 2
- Clinical trials
- 1
- Practice address
- 100 Michigan St NE, Grand Rapids, MI 49503
- Practice phone
- Call (616) 391-1774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Gribbin'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. Thomas E. Gribbin is a hematologist and oncologist in Grand Rapids, Michigan
Dr. Gribbin practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.
Dr. Gribbin's NPI, 1639179286, was assigned on July 26, 2005. Dr. Gribbin graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1981. Dr. Gribbin holds Michigan license 4301049910.
- NPI
- 1639179286NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638184575
- NPI enumeration date
- July 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 391-1774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas E. Gribbin practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan
Dr. Gribbin's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.
- Corewell Health Grand Rapids Hospitals - Butterworth100 Michigan St NE, Grand Rapids, MI 49503 · Kent CountyPhone(616) 391-1774
Source: Dmand AI Affiliation Data
Dr. Thomas E. Gribbin is affiliated with 3 sites of care and 1 medical group
Dr. Gribbin's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dr. Gribbin is also affiliated with Trinity Health Grand Rapids Hospital. The medical group on file is The Cancer & Hematology Centers. Dmand AI also links Dr. Gribbin to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas E. Gribbin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gribbin practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Grand Rapids Hospitals - Butterworth | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas E. Gribbin is one of 298 hematologists and oncologists in Michigan
Hematology and oncology is Dr. Gribbin's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Gribbin is licensed in Michigan.
Specialties and state licenses
- Hematology and oncology, MichiganPrimary
Hematologists and oncologists near Dr. Gribbin
Counts of hematologists and oncologists 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. Thomas E. Gribbin billed Medicare for 2,574 services in 2024
CMS data shows 2,574 Medicare services from Dr. Gribbin across 25 procedure codes in 2024, for 274 Medicare patients. Medicare paid $79,448 for them.
Dr. Gribbin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1,6702024: 68359%
- Tests and treatments
- 2023: 6242024: 54213%
- Lab and pathology
- 2023: 1142024: 539373%
- Office and hospital visits
- 2023: 6422024: 43333%
- Surgery
- 2023: 1222024: 23593%
- Other services
- 2023: 1122024: 14227%
Where Dr. Gribbin's Medicare services took place, 2024
- In an office2,49997%
- In a facility753%
Dr. Gribbin compared with the Michigan median for hematologists and oncologists, 2024
- Dr. Gribbin
- Michigan median
- Medicare services
- 2,574vs 6194.2 times
- Medicare patients
- 274vs 22820% above
- Part D claims
- 1,592vs 3784.2 times
Medians across 291 hematologists and oncologists in Michigan with Dmand AI profiles that report each measure.
Dr. Gribbin'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. Gribbin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gribbin 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. Thomas E. Gribbin treated 274 Medicare patients in 2024, average age 72
CMS counts 274 Medicare patients who saw Dr. Gribbin in 2024. The largest group is 65 to 74, with 137 patients. 71% of them have high blood pressure, and 66% have high cholesterol. 11% are also on Medicaid. Their average risk score is 2.03, 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. Gribbin's median patient age at 67, with 70% women.
Dr. Gribbin's Medicare patients by age, 2024
Dr. Gribbin's Medicare patients by sex, 2024
- Women18668%
- Men8832%
Chronic conditions among Dr. Gribbin's Medicare patients, 2024
- High blood pressure71%
- High cholesterol66%
- Cancer65%
- Arthritis49%
- Mood disorders32%
- Anxiety28%
- Depression28%
- Diabetes27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gribbin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women70%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas E. Gribbin wrote 1,846 Medicare Part D claims in 2024
In 2024, Dr. Gribbin wrote 1,846 Medicare Part D claims for 389 patients. 82% of them were for generic drugs. CMS names the drug for 1,592 of them, across 31 drugs with 11 or more claims each, at $2,773,664 in total drug cost. In 2023, CMS named 1,599 claims across 31 drugs.
Dr. Gribbin's Part D claims by kind of drug, 2024
- Generic1,520 claims82%
- Brand-name326 claims18%
Dr. Gribbin'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. Gribbin's Part D claims, 2024
- Opioids2%34 of 1,846 claims
- Antibiotics4%66 of 1,846 claims
- Antipsychotics, patients 65 and over1%12 of 1,846 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: 1,5992024: 1,592No change
Drugs named by CMS: 31 in 2024, 31 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. Thomas E. Gribbin scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Gribbin for performance year 2024, reported as part of a group. Dr. Gribbin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Gribbin's MIPS scores, performance year 2024
- 100of 100Final score
- 96of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Thomas E. Gribbin has 2 publications on record
Dmand AI links 2 papers to Dr. Gribbin in 2015. 2015 was the busiest year, with 2. Dr. Gribbin's most frequent co-authors are Fadi S. Braiteh, MD, Tomislav Dragovich, MD, PhD and Stanley J. Goldsmith, MD.
Dr. Gribbin's most frequent co-authors
- Fadi S. Braiteh, MD1 shared paper
- Tomislav Dragovich, MD, PhD1 shared paper
- Stanley J. Goldsmith, MD1 shared paper
Recent publications by Dr. Gribbin
See who Dr. Gribbin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gribbin 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. Thomas E. Gribbin has worked on 1 clinical trial
Dmand AI links Dr. Gribbin to 1 clinical trial. Conditions studied include Pancreatitis and Pancreatic Neoplasms.
Conditions in Dr. Gribbin's trials
- Pancreatitis
- Pancreatic Neoplasms
Investigators on the most trials with Dr. Gribbin
Recent clinical trials with Dr. Gribbin
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Thomas E. Gribbin received $3,458 in industry payments from 2016 to 2025
CMS Open Payments shows 127 general payments to Dr. Gribbin from 34 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 82% of the total. McKesson Specialty Care Distribution Corp. paid the most, $445.
General payments to Dr. Gribbin by program year, 2016 to 2025
General payments to Dr. Gribbin by kind, 2016 to 2025
- Food and beverage$2,83782%
- Consulting fees$44513%
- Education$1775%
Companies that paid Dr. Gribbin 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. Thomas E. Gribbin graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Gribbin graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas E. Gribbin'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) |
| 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Thomas E. Gribbin
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. Thomas E. Gribbin's NPI number?
Dr. Thomas E. Gribbin's NPI number is 1639179286. It was assigned on July 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas E. Gribbin?
Dr. Thomas E. Gribbin is a hematologist and oncologist in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Thomas E. Gribbin practice?
Dr. Gribbin practices at 100 Michigan St NE, Grand Rapids, MI 49503. Dr. Gribbin's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Dr. Gribbin to 1 hospital.
What is Dr. Thomas E. Gribbin's office phone number?
The practice phone on file for Dr. Gribbin is (616) 391-1774.
What is Dr. Thomas E. Gribbin's medical license number?
Dr. Gribbin holds Michigan license 4301049910.
Which hospitals is Dr. Thomas E. Gribbin affiliated with?
Dr. Gribbin practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan. Dr. Gribbin is also affiliated with Trinity Health Grand Rapids Hospital. Dmand AI links Dr. Gribbin to 1 more hospital.
What medical group is Dr. Thomas E. Gribbin part of?
Dr. Gribbin is linked to The Cancer & Hematology Centers.
Does Dr. Thomas E. Gribbin accept Medicare?
Yes. CMS data shows Dr. Gribbin billed Medicare for 2,574 services in 2024, and Dr. Gribbin accepts Medicare assignment.
What is Dr. Thomas E. Gribbin's MIPS score?
Dr. Gribbin's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Thomas E. Gribbin see?
CMS counts 274 Medicare patients who saw Dr. Gribbin in 2024, with an average age of 72.
Show 7 more questionsShow fewer questions
What services does Dr. Thomas E. Gribbin bill to Medicare?
In 2024, Dr. Gribbin's most billed Medicare services were injected or infused drug (J1100), lab and pathology test (85025) and surgery: heart and blood vessels (36415).
Where did Dr. Thomas E. Gribbin go to medical school?
Dr. Gribbin graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1981.
What drugs does Dr. Thomas E. Gribbin prescribe most?
In 2024 Medicare Part D data, Dr. Gribbin's most prescribed drugs by claims were Anastrozole, Tamoxifen Citrate and Acyclovir.
Has Dr. Thomas E. Gribbin received payments from drug or device companies?
CMS Open Payments shows $3,458 in general payments to Dr. Gribbin from 34 companies from 2016 to 2025. The largest total came from McKesson Specialty Care Distribution Corp.
How long has Dr. Thomas E. Gribbin been practicing?
Dr. Gribbin graduated from medical school in 1981, 45 years ago.
Does Dr. Thomas E. Gribbin do research?
Dmand AI links 2 publications to Dr. Gribbin. Dr. Gribbin has worked on 1 clinical trial.
Who does Dr. Thomas E. Gribbin publish with?
Dr. Gribbin's most frequent co-authors are Fadi S. Braiteh, MD (1 shared paper), Tomislav Dragovich, MD, PhD (1 shared paper) and Stanley J. Goldsmith, MD (1 shared paper).
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