Dr. Grant Joseph Sullivan, DO
- Medicare services, 2024
- 1,137
- Medicare patients, 2024
- 469
- Part D claims, 2024
- 292
- MIPS score, 2024
- 84
- Hospital affiliations
- 2
- Practice address
- 11373 Cortez Blvd, Brooksville, FL 34613
- Practice phone
- Call (352) 797-3500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northpointe Physicians Group
Brooksville, Florida
Find Dr. Sullivan'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. Grant Joseph Sullivan is a hospitalist in Brooksville, Florida
Dr. Sullivan practices at Northpointe Physicians Group in Brooksville, Florida.
Dr. Sullivan's NPI, 1215115969, was assigned on February 5, 2008. Dr. Sullivan graduated from Kansas City University of Physicians and Surgeons in 2006. Dr. Sullivan holds South Carolina license 36082.
- NPI
- 1215115969NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658495395
- NPI enumeration date
- February 5, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (352) 797-3500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Grant Joseph Sullivan practices at Northpointe Physicians Group in Brooksville, Florida
Dr. Sullivan's primary practice is Northpointe Physicians Group, at 11373 Cortez Blvd, Brooksville, FL 34613 in Hernando County. The practice phone is (352) 797-3500.
- Northpointe Physicians Group11373 Cortez Blvd, Brooksville, FL 34613 · Hernando CountyPhone(352) 797-3500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Grant Joseph Sullivan is affiliated with 6 sites of care and 1 medical group
Dr. Sullivan's primary practice is Northpointe Physicians Group in Brooksville, Florida. Dr. Sullivan is also affiliated with Lexington Medical Center. The medical group on file is Lexington Orthopaedics and Sports Medicine. Dmand AI also links Dr. Sullivan to 1 more hospital, 2 hospices and 1 home health agency, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Grant Joseph Sullivan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sullivan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northpointe Physicians Group | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Grant Joseph Sullivan is one of 1,637 hospitalists in Florida
Hospitalist is Dr. Sullivan's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Sullivan is licensed in South Carolina.
Specialties and state licenses
- Hospitalist, South CarolinaPrimary
Hospitalists near Dr. Sullivan
Counts of hospitalists 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. Grant Joseph Sullivan billed Medicare for 1,137 services in 2024
CMS data shows 1,137 Medicare services from Dr. Sullivan across 6 procedure codes in 2024, for 469 Medicare patients. Medicare paid $75,105 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sullivan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3172024: 1,13714%
Dr. Sullivan compared with the Florida median for hospitalists, 2024
- Dr. Sullivan
- Florida median
- Medicare services
- 1,137vs 5432.1 times
- Medicare patients
- 469vs 24393% above
- Part D claims
- 52vs 11254% below
Medians across 1,516 hospitalists in Florida with Dmand AI profiles that report each measure.
Dr. Sullivan'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Grant Joseph Sullivan treated 469 Medicare patients in 2024, average age 77
CMS counts 469 Medicare patients who saw Dr. Sullivan in 2024. The largest group is 75 to 84, with 183 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 2.32, 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. Sullivan's median patient age at 71, with 54% women.
Dr. Sullivan's Medicare patients by age, 2024
Dr. Sullivan's Medicare patients by sex, 2024
- Women26055%
- Men20945%
Chronic conditions among Dr. Sullivan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Chronic kidney disease54%
- Heart failure50%
- Ischemic heart disease50%
- Anxiety46%
- Mood disorders45%
Share of Medicare patients with each condition. A patient can have several.
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 71
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. Grant Joseph Sullivan wrote 292 Medicare Part D claims in 2024
In 2024, Dr. Sullivan wrote 292 Medicare Part D claims for 144 patients. 85% of them were for generic drugs. CMS names the drug for 52 of them, across 4 drugs with 11 or more claims each, at $9,206 in total drug cost. In 2023, CMS named 26 claims across 2 drugs.
Dr. Sullivan's Part D claims by kind of drug, 2024
- Generic249 claims85%
- Brand-name and other43 claims15%
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%19 of 292 claims
- Antibiotics13%37 of 292 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: 262024: 52100%
Drugs named by CMS: 4 in 2024, 2 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. Grant Joseph Sullivan scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Sullivan for performance year 2024, reported as part of a group. Dr. Sullivan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Sullivan's MIPS scores, performance year 2024
- 84of 100Final score
- 68.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
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. Grant Joseph Sullivan received $239 in industry payments from 2017 to 2024
CMS Open Payments shows 4 general payments to Dr. Sullivan from 4 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $135.
General payments to Dr. Sullivan by program year, 2017 to 2024
Companies that paid Dr. Sullivan the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Grant Joseph Sullivan graduated from Kansas City University of Physicians and Surgeons
Dr. Sullivan graduated from Kansas City University of Physicians and Surgeons in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Grant Joseph Sullivan'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 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) |
| 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. Grant Joseph Sullivan
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. Grant Joseph Sullivan's NPI number?
Dr. Grant Joseph Sullivan's NPI number is 1215115969. It was assigned on February 5, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Grant Joseph Sullivan?
Dr. Grant Joseph Sullivan is a hospitalist in Brooksville, Florida. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Grant Joseph Sullivan practice?
Dr. Sullivan practices at 11373 Cortez Blvd, Brooksville, FL 34613. Dr. Sullivan's primary practice is Northpointe Physicians Group in Brooksville, Florida. Dmand AI also links Dr. Sullivan to 1 hospital, 2 hospices and 1 home health agency.
What is Dr. Grant Joseph Sullivan's office phone number?
The practice phone on file for Dr. Sullivan is (352) 797-3500.
What is Dr. Grant Joseph Sullivan's medical license number?
Dr. Sullivan holds South Carolina license 36082.
Which hospitals is Dr. Grant Joseph Sullivan affiliated with?
Dr. Sullivan is affiliated with Lexington Medical Center. Dmand AI links Dr. Sullivan to 1 more hospital.
What medical group is Dr. Grant Joseph Sullivan part of?
Dr. Sullivan is linked to Lexington Orthopaedics and Sports Medicine.
Does Dr. Grant Joseph Sullivan accept Medicare?
Yes. CMS data shows Dr. Sullivan billed Medicare for 1,137 services in 2024, and Dr. Sullivan accepts Medicare assignment.
What is Dr. Grant Joseph Sullivan's MIPS score?
Dr. Sullivan's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Grant Joseph Sullivan see?
CMS counts 469 Medicare patients who saw Dr. Sullivan in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Grant Joseph Sullivan bill to Medicare?
In 2024, Dr. Sullivan's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99222).
Where did Dr. Grant Joseph Sullivan go to medical school?
Dr. Sullivan graduated from Kansas City University of Physicians and Surgeons in 2006.
What drugs does Dr. Grant Joseph Sullivan prescribe most?
In 2024 Medicare Part D data, Dr. Sullivan's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Eliquis and Furosemide.
Has Dr. Grant Joseph Sullivan received payments from drug or device companies?
CMS Open Payments shows $239 in general payments to Dr. Sullivan from 4 companies from 2017 to 2024. The largest total came from Inari Medical, Inc.
How long has Dr. Grant Joseph Sullivan been practicing?
Dr. Sullivan graduated from medical school in 2006, 20 years ago.
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