Dr. Bret Jason Spier, MD
- Medicare services, 2024
- 1,432
- Medicare patients, 2024
- 728
- Part D claims, 2024
- 516
- Publications
- 9
- Hospital affiliations
- 3
- Practice address
- 2651 E Discovery Pkwy, Bloomington, IN 47408
- Practice phone
- Call (812) 353-5252
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
IU Health Bloomington
Bloomington, Indiana
Find Dr. Spier'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. Bret Jason Spier is a gastroenterologist in Bloomington, Indiana
Dr. Spier practices at IU Health Bloomington in Bloomington, Indiana.
Dr. Spier's NPI, 1710935309, was assigned on May 5, 2006. Dr. Spier holds Indiana license 01067154A.
- NPI
- 1710935309NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345397816
- NPI enumeration date
- May 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (812) 353-5252
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bret Jason Spier practices at IU Health Bloomington in Bloomington, Indiana
Dr. Spier's primary practice is IU Health Bloomington, at 2651 E Discovery Pkwy, Bloomington, IN 47408 in Monroe County. The practice phone is (812) 353-5252.
- IU Health Bloomington2651 E Discovery Pkwy, Bloomington, IN 47408 · Monroe CountyPhone(812) 353-5252
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Bret Jason Spier is affiliated with 6 sites of care and 2 medical groups
Dr. Spier's primary practice is IU Health Bloomington in Bloomington, Indiana. Dr. Spier is also affiliated with IU Health Bloomington Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Spier to 2 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Bret Jason Spier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Spier practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| IU Health Bloomington | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bret Jason Spier is one of 333 gastroenterologists in Indiana
Gastroenterology is Dr. Spier's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Spier is licensed in Indiana.
Specialties and state licenses
- Gastroenterology, IndianaPrimary
Gastroenterologists near Dr. Spier
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. Bret Jason Spier billed Medicare for 1,432 services in 2024
CMS data shows 1,432 Medicare services from Dr. Spier across 20 procedure codes in 2024, for 728 Medicare patients. Medicare paid $117,688 for them.
Dr. Spier's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 7332024: 81311%
- Other services
- 2023: 4292024: 47210%
- Office and hospital visits
- 2023: 1912024: 8555%
- Tests and treatments
- 2023: 192024: 3795%
- Imaging
- 2023: 232024: 259%
Where Dr. Spier's Medicare services took place, 2024
- In an office665%
- In a facility1,36695%
Dr. Spier compared with the Indiana median for gastroenterologists, 2024
- Dr. Spier
- Indiana median
- Medicare services
- 1,432vs 4713.0 times
- Medicare patients
- 728vs 3092.4 times
- Part D claims
- 358vs 42215% below
Medians across 330 gastroenterologists in Indiana with Dmand AI profiles that report each measure.
Dr. Spier'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Spier and other gastroenterologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bret Jason Spier treated 728 Medicare patients in 2024, average age 72
CMS counts 728 Medicare patients who saw Dr. Spier in 2024. The largest group is 65 to 74, with 376 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Spier's median patient age at 61, with 54% women.
Dr. Spier's Medicare patients by age, 2024
Dr. Spier's Medicare patients by sex, 2024
- Women39054%
- Men33846%
Chronic conditions among Dr. Spier's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis50%
- Diabetes33%
- Mood disorders33%
- Anxiety32%
- Depression30%
- Ischemic heart disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Spier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bret Jason Spier wrote 516 Medicare Part D claims in 2024
In 2024, Dr. Spier wrote 516 Medicare Part D claims for 175 patients. 81% of them were for generic drugs. CMS names the drug for 358 of them, across 18 drugs with 11 or more claims each, at $135,705 in total drug cost. In 2023, CMS named 317 claims across 15 drugs.
Dr. Spier's Part D claims by kind of drug, 2024
- Generic418 claims81%
- Brand-name98 claims19%
Dr. Spier'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. Spier's Part D claims, 2024
- Antibiotics7%34 of 516 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: 3172024: 35813%
Drugs named by CMS: 18 in 2024, 15 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. Bret Jason Spier ranks in the 96th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Spier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 343 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Spier, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Spier ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 96th percentile343 procedures
- Colonoscopy
- 88th percentile143 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Bret Jason Spier has 9 publications on record
Dmand AI links 9 papers to Dr. Spier, published from 2010 to 2011. 2011 was the busiest year, with 3. The most frequent topics are Colonic Polyps, Colonoscopy and Gastrointestinal Hemorrhage. Dr. Spier has published most often in Can J Gastroenterol. Dr. Spier's most frequent co-authors are Deepak V. Gopal, MD, Michael R. Lucey, MD and Mark Reichelderfer, MD.
Topics Dr. Spier writes about most
- Colonic Polyps
- Colonoscopy
- Gastrointestinal Hemorrhage
- Pancreatic Neoplasms
Dr. Spier's most frequent co-authors
- Deepak V. Gopal, MD3 shared papers
- Michael R. Lucey, MD2 shared papers
- Mark Reichelderfer, MD2 shared papers
Recent publications by Dr. Spier
Aliment Pharmacol Ther
J Clin Oncol
Can J Gastroenterol
See who Dr. Spier researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Spier 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. Bret Jason Spier received $11,202 in industry payments from 2016 to 2025
CMS Open Payments shows 79 general payments to Dr. Spier from 16 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 72% of the total. Abbvie Inc. paid the most, $9,117.
General payments to Dr. Spier by program year, 2016 to 2025
General payments to Dr. Spier by kind, 2016 to 2025
- Speaker and faculty fees$8,07572%
- Food and beverage$2,46622%
- Travel and lodging$6486%
- Education$140%
Companies that paid Dr. Spier 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. Bret Jason Spier'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)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) |
| 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. Bret Jason Spier
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. Bret Jason Spier's NPI number?
Dr. Bret Jason Spier's NPI number is 1710935309. It was assigned on May 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Bret Jason Spier?
Dr. Bret Jason Spier is a gastroenterologist in Bloomington, Indiana. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Bret Jason Spier practice?
Dr. Spier practices at 2651 E Discovery Pkwy, Bloomington, IN 47408. Dr. Spier's primary practice is IU Health Bloomington in Bloomington, Indiana. Dmand AI also links Dr. Spier to 2 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Bret Jason Spier's office phone number?
The practice phone on file for Dr. Spier is (812) 353-5252.
What is Dr. Bret Jason Spier's medical license number?
Dr. Spier holds Indiana license 01067154A.
Which hospitals is Dr. Bret Jason Spier affiliated with?
Dr. Spier is affiliated with IU Health Bloomington Hospital. Dmand AI links Dr. Spier to 2 more hospitals.
What medical group is Dr. Bret Jason Spier part of?
Dr. Spier is linked to IU Health Medical Group. Dmand AI links Dr. Spier to 1 more medical group.
Does Dr. Bret Jason Spier accept Medicare?
Yes. CMS data shows Dr. Spier billed Medicare for 1,432 services in 2024, and Dr. Spier accepts Medicare assignment.
How many Medicare patients does Dr. Bret Jason Spier see?
CMS counts 728 Medicare patients who saw Dr. Spier in 2024, with an average age of 72.
What services does Dr. Bret Jason Spier bill to Medicare?
In 2024, Dr. Spier's most billed Medicare services were medicare service (G0500), surgery: digestive system (45385) and surgery: digestive system (43239).
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What drugs does Dr. Bret Jason Spier prescribe most?
In 2024 Medicare Part D data, Dr. Spier's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Esomeprazole Magnesium.
Has Dr. Bret Jason Spier received payments from drug or device companies?
CMS Open Payments shows $11,202 in general payments to Dr. Spier from 16 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Bret Jason Spier been practicing?
Dr. Spier graduated from medical school in 2003, 23 years ago.
Does Dr. Bret Jason Spier do research?
Dmand AI links 9 publications to Dr. Spier, published from 2010 to 2011.
Who does Dr. Bret Jason Spier publish with?
Dr. Spier's most frequent co-authors are Deepak V. Gopal, MD (3 shared papers), Michael R. Lucey, MD (2 shared papers) and Mark Reichelderfer, MD (2 shared papers).
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