Dr. John Michael Sullivan III, MD
- Part D claims, 2024
- 156
- Publications
- 1
- Industry payments
- $132
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 1 Genesys Pkwy, Grand Blanc, MI 48439
- Practice phone
- Call (810) 606-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Sullivan's professional email, personal email and mobile number
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Dr. John Michael Sullivan III is an internist in Grand Blanc, Michigan
Dr. Sullivan practices in Grand Blanc, Michigan.
Dr. Sullivan's NPI, 1447935614, was assigned on June 16, 2023. Dr. Sullivan holds Michigan license 4351051439.
- NPI
- 1447935614NPI Registry (opens in a new tab)
- NPI enumeration date
- June 16, 2023
- NPI status
- Active
- Practice phone
- (810) 606-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. John Michael Sullivan III's practice address is in Grand Blanc, Michigan
Dr. Sullivan's practice address in the NPI Registry is 1 Genesys Pkwy, Grand Blanc, MI 48439, in Genesee County. The practice phone is (810) 606-5000.
- NPI Registry address1 Genesys Pkwy, Grand Blanc, MI 48439 · Genesee CountyPhone(810) 606-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. John Michael Sullivan III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sullivan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Sullivan's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Michael Sullivan III is one of 4,804 internists in Michigan
Internal medicine is Dr. Sullivan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sullivan is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Sullivan
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. John Michael Sullivan III's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Sullivan's median patient age at 44, with 100% women.
Dr. Sullivan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. John Michael Sullivan III wrote 156 Medicare Part D claims in 2024
In 2024, Dr. Sullivan wrote 156 Medicare Part D claims for 33 patients. 94% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $47 in total drug cost.
Dr. Sullivan's Part D claims by kind of drug, 2024
- Generic146 claims94%
- Brand-name and other10 claims6%
Dr. Sullivan'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. Sullivan's Part D claims, 2024
- Opioids7%11 of 156 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
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Dr. John Michael Sullivan III has 1 publication on record
Dmand AI links 1 paper to Dr. Sullivan in 2020. Dr. Sullivan's most frequent co-author is Paul Raymond Knight, MD.
Dr. Sullivan's most frequent co-authors
Recent publications by Dr. Sullivan
See who Dr. Sullivan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sullivan 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. John Michael Sullivan III received $132 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Dr. Sullivan from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Ardelyx, Inc. paid the most, $95.
General payments to Dr. Sullivan by program year, 2024 to 2025
Companies that paid Dr. Sullivan the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Michael Sullivan III'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 |
| 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) |
| 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. John Michael Sullivan III
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. John Michael Sullivan III's NPI number?
Dr. John Michael Sullivan III's NPI number is 1447935614. It was assigned on June 16, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. John Michael Sullivan III?
Dr. John Michael Sullivan III is an internist in Grand Blanc, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Michael Sullivan III practice?
Dr. Sullivan practices at 1 Genesys Pkwy, Grand Blanc, MI 48439.
What is Dr. John Michael Sullivan III's office phone number?
The practice phone on file for Dr. Sullivan is (810) 606-5000.
What is Dr. John Michael Sullivan III's medical license number?
Dr. Sullivan holds Michigan license 4351051439.
What drugs does Dr. John Michael Sullivan III prescribe most?
In 2024 Medicare Part D data, Dr. Sullivan's most prescribed drugs by claims were Losartan Potassium.
Has Dr. John Michael Sullivan III received payments from drug or device companies?
CMS Open Payments shows $132 in general payments to Dr. Sullivan from 3 companies from 2024 to 2025. The largest total came from Ardelyx, Inc.
How long has Dr. John Michael Sullivan III been practicing?
Dr. Sullivan's NPI was assigned in 2023.
Does Dr. John Michael Sullivan III do research?
Dmand AI links 1 publication to Dr. Sullivan.
Who does Dr. John Michael Sullivan III publish with?
Dr. Sullivan's most frequent co-authors are Paul Raymond Knight, MD (1 shared paper).
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