Dr. Brian S. Gregori, DO
- Medicare services, 2024
- 777
- Medicare patients, 2024
- 744
- Part D claims, 2020
- 23
- Hospital affiliations
- 4
- Medical group
- 1
- Practice address
- 3535 Olentangy River Rd, Columbus, OH 43214
- Practice phone
- Call (614) 566-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gregori's professional email, personal email and mobile number
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Dr. Brian S. Gregori is an internist in Columbus, Ohio
Dr. Gregori practices at OhioHealth Riverside Methodist Hospital in Columbus, Ohio, part of OhioHealth.
Dr. Gregori's NPI, 1922118488, was assigned on August 30, 2006. Dr. Gregori graduated from Ohio University, College of Osteopathic Medicine in 1991. Dr. Gregori holds Ohio license 34-00-5582.
- NPI
- 1922118488NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901841808
- NPI enumeration date
- August 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (614) 566-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian S. Gregori practices at OhioHealth Riverside Methodist Hospital in Columbus, Ohio
Dr. Gregori's primary practice is OhioHealth Riverside Methodist Hospital, at 3535 Olentangy River Rd, Columbus, OH 43214 in Franklin County. The practice phone is (614) 566-5000.
- OhioHealth Riverside Methodist Hospital3535 Olentangy River Rd, Columbus, OH 43214 · Franklin CountyPhone(614) 566-5000
Source: Dmand AI Affiliation Data
Dr. Brian S. Gregori is affiliated with 7 sites of care and 1 medical group
Dr. Gregori's primary practice is OhioHealth Riverside Methodist Hospital in Columbus, Ohio, part of OhioHealth. Dr. Gregori is also affiliated with OhioHealth Grant Medical Center. The medical group on file is MedOne Hospital Physicians. Dmand AI also links Dr. Gregori to 2 more hospitals, 1 physician office, 1 group practice or clinic and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian S. Gregori's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gregori practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OhioHealth Riverside Methodist Hospital | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian S. Gregori is one of 4,708 internists in Ohio
Internal medicine is Dr. Gregori's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gregori is licensed in Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
Internists near Dr. Gregori
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. Brian S. Gregori billed Medicare for 777 services in 2024
CMS data shows 777 Medicare services from Dr. Gregori across 3 procedure codes in 2024, all of them office visits, for 744 Medicare patients. Medicare paid $66,749 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gregori's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6792024: 77714%
Dr. Gregori compared with the Ohio median for internists, 2024
- Dr. Gregori
- Ohio median
- Medicare services
- 777vs 48760% above
- Medicare patients
- 744vs 1923.9 times
- Part D claims
- 23vs 29492% below
Medians across 4,703 internists in Ohio with Dmand AI profiles that report each measure.
Dr. Gregori'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. Gregori and other internists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian S. Gregori treated 744 Medicare patients in 2024, average age 72
CMS counts 744 Medicare patients who saw Dr. Gregori in 2024. The largest group is 65 to 74, with 390 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gregori's median patient age at 60, with 61% women.
Dr. Gregori's Medicare patients by age, 2024
Dr. Gregori's Medicare patients by sex, 2024
- Women39453%
- Men35047%
Chronic conditions among Dr. Gregori's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Diabetes36%
- Mood disorders34%
- Anxiety32%
- Depression32%
- Ischemic heart disease31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gregori's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian S. Gregori wrote 23 Medicare Part D claims in 2020
In 2020, Dr. Gregori wrote 23 Medicare Part D claims. They cover 2 drugs, with $42 in total drug cost.
Dr. Gregori's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Brian S. Gregori takes part in Medicare
Dr. Gregori accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Brian S. Gregori graduated from Ohio University, College of Osteopathic Medicine
Dr. Gregori graduated from Ohio University, College of Osteopathic Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Brian S. Gregori'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Brian S. Gregori
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. Brian S. Gregori's NPI number?
Dr. Brian S. Gregori's NPI number is 1922118488. It was assigned on August 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian S. Gregori?
Dr. Brian S. Gregori is an internist in Columbus, Ohio. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Brian S. Gregori practice?
Dr. Gregori practices at 3535 Olentangy River Rd, Columbus, OH 43214. Dr. Gregori's primary practice is OhioHealth Riverside Methodist Hospital in Columbus, Ohio, part of OhioHealth. Dmand AI also links Dr. Gregori to 2 hospitals, 1 physician office, 1 group practice or clinic and 1 hospital outpatient department.
What is Dr. Brian S. Gregori's office phone number?
The practice phone on file for Dr. Gregori is (614) 566-5000.
What is Dr. Brian S. Gregori's medical license number?
Dr. Gregori holds Ohio license 34-00-5582.
Which hospitals is Dr. Brian S. Gregori affiliated with?
Dr. Gregori practices at OhioHealth Riverside Methodist Hospital in Columbus, Ohio. Dr. Gregori is also affiliated with OhioHealth Grant Medical Center. Dmand AI links Dr. Gregori to 2 more hospitals.
What medical group is Dr. Brian S. Gregori part of?
Dr. Gregori is linked to MedOne Hospital Physicians.
Does Dr. Brian S. Gregori accept Medicare?
Yes. CMS data shows Dr. Gregori billed Medicare for 777 services in 2024, and Dr. Gregori accepts Medicare assignment.
How many Medicare patients does Dr. Brian S. Gregori see?
CMS counts 744 Medicare patients who saw Dr. Gregori in 2024, with an average age of 72.
What services does Dr. Brian S. Gregori bill to Medicare?
In 2024, Dr. Gregori's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99214) and office visit, established patient (99215).
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Where did Dr. Brian S. Gregori go to medical school?
Dr. Gregori graduated from Ohio University, College of Osteopathic Medicine in 1991.
What drugs does Dr. Brian S. Gregori prescribe most?
In 2020 Medicare Part D data, Dr. Gregori's most prescribed drugs by claims were Potassium Chloride and Sulfamethoxazole-Trimethoprim.
How long has Dr. Brian S. Gregori been practicing?
Dr. Gregori graduated from medical school in 1991, 35 years ago.
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