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Dr. Robert E. Barnes Jr., MD
NPI1497821284
- Medicare services, 2022
- 610
- Part D claims, 2026
- 21
- Publications
- 2
- Industry payments
- $742
- Affiliated sites
- 1
- Practice address
- 50 N Perry St, Pontiac, MI 48342
- Practice phone
- Call (248) 338-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
McLaren Oakland Hospital
Pontiac, Michigan
Find Dr. Barnes' 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. Robert E. Barnes Jr. is a gastroenterologist in Pontiac, Michigan
Dr. Barnes practices at McLaren Oakland Hospital in Pontiac, Michigan.
Dr. Barnes' NPI, 1497821284, was assigned on November 26, 2006. Dr. Barnes graduated from Wayne State University School of Medicine in 1986. Dr. Barnes holds Michigan license RB050771.
NPI and contact details
- NPI
- 1497821284NPI Registry (opens in a new tab)
- NPI enumeration date
- November 26, 2006
- NPI status
- Active
- Practice phone
- (248) 338-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Robert E. Barnes Jr. practices at McLaren Oakland Hospital in Pontiac, Michigan
Dr. Barnes' primary practice is McLaren Oakland Hospital, at 50 N Perry St, Pontiac, MI 48342 in Oakland County. The practice phone is (248) 338-5000.
- McLaren Oakland Hospital50 N Perry St, Pontiac, MI 48342 · Oakland CountyPhone(248) 338-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert E. Barnes Jr. is affiliated with 2 sites of care and 1 medical group
Dr. Barnes' primary practice is McLaren Oakland Hospital in Pontiac, Michigan. The medical group on file is Munson Healthcare Digestive Health. Dmand AI also links Dr. Barnes to 1 more group practice or clinic, named with a free account.
McLaren Oakland HospitalPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert E. Barnes Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barnes practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McLaren Oakland Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Robert E. Barnes Jr. is one of 487 gastroenterologists in Michigan
Gastroenterology is Dr. Barnes' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Barnes is licensed in Michigan.
Specialties and state licenses
- Gastroenterology, MichiganPrimary
Gastroenterologists near Dr. Barnes
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
487gastroenterologists in Michigan
3gastroenterologists in Pontiac
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert E. Barnes Jr. billed Medicare for 610 services in 2022
CMS data shows 610 Medicare services from Dr. Barnes across 14 procedure codes in 2022. Medicare paid $48,979 for them.
Medicare services, 2022610
Paid by Medicare$48,979
Procedure codes14
Dr. Barnes' Medicare services by type, 2021 to 2022
- 2021
- 2022
- Other services
- 2021: 2452022: 20616%
- Office and hospital visits
- 2021: 3892022: 20448%
- Surgery
- 2021: 2652022: 20025%
Where Dr. Barnes' Medicare services took place, 2022
- In an office13222%
- In a facility47878%
Dr. Barnes compared with the Michigan median for gastroenterologists, 2022
- Dr. Barnes
- Michigan median
- Medicare services
- 610vs 32488% above
- Part D claims
- 180vs 42458% below
Medians across 487 gastroenterologists in Michigan with Dmand AI profiles that report each measure.
Dr. Barnes' most billed Medicare procedure codes, 2022
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. Barnes?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Barnes and other gastroenterologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert E. Barnes Jr.'s patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Barnes' median patient age at 79, with 77% women.
Dr. Barnes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women77%
- Men23%
Source: Dmand AI Patient Panel Data
Dr. Robert E. Barnes Jr. wrote 21 Medicare Part D claims in 2026
In 2026, Dr. Barnes wrote 21 Medicare Part D claims for 11 patients. 95% of them were for generic drugs. They cover 6 drugs, with $5,147 in total drug cost. In 2022, CMS named 925 claims across 24 drugs.
Part D claims, 202621
Drugs named by CMS6
Total drug cost$5,147
Part D patients11
Dr. Barnes' Part D claims by kind of drug, 2026
- Generic20 claims95%
- Brand-name and other1 claims5%
Dr. Barnes' most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 9252023: 18081%
Drugs named by CMS: 6 in 2023, 24 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
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Dr. Robert E. Barnes Jr. has 2 publications on record
Dmand AI links 2 papers to Dr. Barnes. Dr. Barnes' most frequent co-author is Nelson Charles Goldman, MD.
Papers2
Dr. Barnes' most frequent co-authors
Recent publications by Dr. Barnes
See who Dr. Barnes researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Barnes 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. Robert E. Barnes Jr. received $742 in industry payments from 2017 to 2025
CMS Open Payments shows 56 general payments to Dr. Barnes from 10 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $259.
General payments to Dr. Barnes by program year, 2017 to 2025
Companies that paid Dr. Barnes the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert E. Barnes Jr. graduated from Wayne State University School of Medicine
Dr. Barnes graduated from Wayne State University School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert E. Barnes Jr.'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 Data |
| 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) |
| 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) |
| 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. Robert E. Barnes Jr.
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. Robert E. Barnes Jr.'s NPI number?
Dr. Robert E. Barnes Jr.'s NPI number is 1497821284. It was assigned on November 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert E. Barnes Jr.?
Dr. Robert E. Barnes Jr. is a gastroenterologist in Pontiac, Michigan. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Robert E. Barnes Jr. practice?
Dr. Barnes practices at 50 N Perry St, Pontiac, MI 48342. Dr. Barnes' primary practice is McLaren Oakland Hospital in Pontiac, Michigan. Dmand AI also links Dr. Barnes to 1 group practice or clinic, and a free account names each one.
What is Dr. Robert E. Barnes Jr.'s office phone number?
The practice phone on file for Dr. Barnes is (248) 338-5000. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Robert E. Barnes Jr.'s email address?
Dmand AI checks professional and personal email addresses for Dr. Barnes through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Robert E. Barnes Jr.'s medical license number?
Dr. Barnes holds Michigan license RB050771.
What medical group is Dr. Robert E. Barnes Jr. part of?
Dr. Barnes is linked to Munson Healthcare Digestive Health.
Who does Dr. Robert E. Barnes Jr. practice with?
Dmand AI links 3 HCPs to Dr. Barnes' primary medical group. A free account lists them, with verified contacts.
Does Dr. Robert E. Barnes Jr. accept Medicare?
Yes. CMS data shows Dr. Barnes billed Medicare for 610 services in 2022.
What services does Dr. Robert E. Barnes Jr. bill to Medicare?
In 2022, Dr. Barnes' most billed Medicare services were medicare service (G0500), office visit, established patient (99214) and surgery: digestive system (45385).
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Where did Dr. Robert E. Barnes Jr. go to medical school?
Dr. Barnes graduated from Wayne State University School of Medicine in 1986.
What drugs does Dr. Robert E. Barnes Jr. prescribe most?
In 2023 Medicare Part D data, Dr. Barnes' most prescribed drugs by claims were Famotidine, Omeprazole and Pantoprazole Sodium.
Has Dr. Robert E. Barnes Jr. received payments from drug or device companies?
CMS Open Payments shows $742 in general payments to Dr. Barnes from 10 companies from 2017 to 2025. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Robert E. Barnes Jr. been practicing?
Dr. Barnes graduated from medical school in 1986, 40 years ago.
Does Dr. Robert E. Barnes Jr. do research?
Dmand AI links 2 publications to Dr. Barnes.
Who does Dr. Robert E. Barnes Jr. publish with?
Dr. Barnes' most frequent co-authors are Nelson Charles Goldman, MD (1 shared paper).
What EHR does Dr. Robert E. Barnes Jr.'s practice use?
Dmand AI tracks the EHR system at McLaren Oakland Hospital and at 1 more affiliated site. The vendor and product are available with a free Dmand AI account.
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