Dr. Brian S. Gregori , DO
Internal Medicine โข Columbus, OH
3525 Olentangy River Rd Ste 4330
Columbus, OH 432143937
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Brian Gregori is listed in NPPES under Internal Medicine.
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NPI assigned on August 30, 2006; this date does not establish years in practice.
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Published CMS data list 777 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99204 โ New patient outpatient office visit: 464 service units.
- 99214 โ Established patient outpatient office visit: 226 service units.
- 99215 โ Established patient outpatient office visit: 87 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 23 Medicare Part D prescriptions, including refills, in 2020.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2020. Published rows only; this is not a quality measure.
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Published Part D records, 2020:
- Potassium Chloride โ 12 prescription fills, including refills.
- Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) โ 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2020. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Columbus, OH (2024, 352 clinicians with data). Median for this group: 511. Middle half: 252 to 823.
More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: 574. Middle half: 262 to 1,043.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 904 in 2020 to 777 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
3525 Olentangy River Rd Ste 4330
Columbus, OH 432143937
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Columbus, OH. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Central Ohio Hospitalists, Inc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Ohio University, College Of Osteopathic Medicine
1991
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
744 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $91,099 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $66,748 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
23 standardized 30-day fills in 2020
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$42 in 2020
The total cost of these prescriptions in 2020, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2020.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
35 years (graduated 1991)
CMS Doctors and Clinicians data list 1991 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Gregori has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Gregori as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Columbus and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Internal Medicine in Columbus, OH (2024, 352 clinicians with data). Median for this group: 511. Middle half: 252 to 823.
More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: 574. Middle half: 262 to 1,043.
Medicare-allowed amount
A higher Medicare-allowed amount than 85% of clinicians listed under Internal Medicine in Columbus, OH (2024, 352 clinicians with data). Median for this group: $51,995. Middle half: $23,845 to $74,225.
A higher Medicare-allowed amount than 75% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: $50,782. Middle half: $23,884 to $83,638.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Internal Medicine in Columbus, OH (2024, 352 clinicians with data). Median for this group: $40,469. Middle half: $17,452 to $59,183.
A higher Medicare payment amount than 75% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: $37,953. Middle half: $17,413 to $63,670.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Gregori are from 2020.
580 active clinicians are listed under Internal Medicine with a practice address in Columbus, OH (5,283 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Columbus
15.9% of these 580 clinicians have the CMS telehealth indicator.
63.4% of these 580 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 14% from 904 in 2020 to 777 in 2024.
- 2020: 904
- 2021: 975
- 2022: 914
- 2023: 679
- 2024: 777
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Medicare-allowed amount
Medicare-allowed amount decreased 24% from $120,043 in 2020 to $91,099 in 2024.
- 2020: $120,043
- 2021: $138,394
- 2022: $117,083
- 2023: $81,998
- 2024: $91,099
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Paid by Medicare
Paid by Medicare decreased 26% from $89,702 in 2020 to $66,748 in 2024.
- 2020: $89,702
- 2021: $105,574
- 2022: $88,900
- 2023: $61,965
- 2024: $66,748
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Medicare Part D prescriptions
Medicare Part D prescriptions varied from year to year: 25 in 2013 and 23 in 2020.
- 2013: 25
- 2014: 17
- 2020: 23
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30-day fills
30-day fills varied from year to year: 25 in 2013 and 23 in 2020.
- 2013: 25
- 2014: 17
- 2020: 23
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Part D drug cost
Part D drug cost went from $113 in 2013 to $42 in 2020.
- 2013: $113
- 2014: $41
- 2020: $42
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2020), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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464 | 464 | $270.00 | $125.77 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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226 | 210 | $195.00 | $92.25 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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87 | 87 | $290.00 | $136.70 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2020.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Potassium Chloride | Potassium Chloride | 12 | 12 | $24.85 | 12 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 11 | 37 | $17.16 | 11 |
Source: CMS Part D by Provider and Drug, 2020; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2023-12-06NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20070503000195
OH
6901841808
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Central Ohio Hospitalists, Inc
3535 Olentangy River Rd, Columbus, OH 432143908
Phone: 6145665000
Secondary Practice Locations
3545 Olentangy River Rd, Suite 201
Columbus, OH 432143907
Phone: 6148844596
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Hospitalist
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 3525 OLENTANGY RIVER RD STE 4330, COLUMBUS, OH 432143937 (Tel: 6142556900)
Registered at 3525 OLENTANGY RIVER RD STE 4330, COLUMBUS, OH 432143937 (Tel: 6142556900)
NPI status registered as active in NPPES database
Registered at 3545 OLENTANGY RIVER RD, SUITE 201, COLUMBUS, OH 432143907 (Tel: 6148844596)
Registered at 4400 N. HIGH STREET, SUITE 412, COLUMBUS, OH 43214 (Tel: 6148844596)
Recorded as BRIAN GREGORI, D.O.
Internal Medicine (license number reported to NPPES: OH 34-00-5582)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Columbus
- Dr. Thomas Brady, MD
- Dr. Sofanit Dessie, MD
- Dr. Jigna Janani, MD
- Dr. Aradhna Saraswat, MD
- Dr. Randall Slaybaugh, MD
- Dr. Katrina Johnson, MD
Mailing Address
3525 Olentangy River Rd Ste 4330
Columbus, OH 432143937
Phone: 6142556900