John Bryan Marshall, OD
- Medicare patients, 2024
- 87
- Part D claims, 2024
- 105
- Industry payments
- $182
- Affiliated sites
- 4
- Medical groups
- 3
- Practice address
- 2217 Old Nc, Hillsborough, NC 27278
- Practice phone
- Call (919) 544-2020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Triangle Visions Optometry
Eye care practice · Hillsborough, North Carolina
Find John Marshall'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.
John Bryan Marshall is an optometrist in Hillsborough, North Carolina
John Marshall practices at Triangle Visions Optometry in Hillsborough, North Carolina.
John Marshall's NPI, 1104972116, was assigned on January 25, 2007. John Marshall graduated from Pennsylvania College of Optometry in 1998. John Marshall holds North Carolina license 1551.
- NPI
- 1104972116NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466425426
- NPI enumeration date
- January 25, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (919) 544-2020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John Bryan Marshall practices at Triangle Visions Optometry in Hillsborough, North Carolina
John Marshall's primary practice is Triangle Visions Optometry, at 2217 Old Nc, Hillsborough, NC 27278. The practice phone is (919) 544-2020.
- Triangle Visions Optometry2217 Old Nc, Hillsborough, NC 27278Phone(919) 544-2020
Source: Dmand AI Affiliation Data
John Bryan Marshall is affiliated with 4 sites of care and 3 medical groups
John Marshall's primary practice is Triangle Visions Optometry in Hillsborough, North Carolina. Dmand AI also links John Marshall to 3 medical groups, 2 group practices and clinics and 1 physician office, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at John Bryan Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Marshall practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Triangle Visions Optometry | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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John Bryan Marshall is one of 1,111 optometrists in North Carolina
Optometrist is John Marshall's primary specialty in the NPI Registry, under taxonomy code 152W00000X. John Marshall is licensed in North Carolina.
Specialties and state licenses
- Optometrist, North CarolinaPrimary
Optometrists near John Marshall
Counts of optometrists 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
John Bryan Marshall treated 87 Medicare patients in 2024, average age 75
CMS counts 87 Medicare patients who saw John Marshall in 2024. The largest group is 65 to 74, with 43 patients. 68% of them have high cholesterol, and 64% have high blood pressure. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts John Marshall's median patient age at 71, with 62% women.
John Marshall's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
John Marshall's Medicare patients by sex, 2024
- Women5260%
- Men3540%
Chronic conditions among John Marshall's Medicare patients, 2024
- High cholesterol68%
- High blood pressure64%
- Arthritis45%
- Diabetes25%
- Anxiety17%
- Chronic kidney disease17%
- Atrial fibrillation16%
- Depression16%
Share of Medicare patients with each condition. A patient can have several.
John Marshall'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
- Women62%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
John Bryan Marshall wrote 105 Medicare Part D claims in 2024
In 2024, John Marshall wrote 105 Medicare Part D claims for 42 patients. 24% of them were for generic drugs.
John Marshall's Part D claims by kind of drug, 2024
- Generic25 claims24%
- Brand-name80 claims76%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How John Bryan Marshall takes part in Medicare
John Marshall accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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John Bryan Marshall received $182 in industry payments in 2025
CMS Open Payments shows 7 general payments to John Marshall from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $169.
Companies that paid John Marshall the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John Bryan Marshall graduated from Pennsylvania College of Optometry
John Marshall graduated from Pennsylvania College of Optometry in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John Bryan Marshall'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 Data |
| 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 (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)Doctors and Clinicians Utilization Data (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 John Bryan Marshall
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Bryan Marshall's NPI number?
John Bryan Marshall's NPI number is 1104972116. It was assigned on January 25, 2007, and it is active in the NPI Registry.
What does John Bryan Marshall specialize in?
John Bryan Marshall is an optometrist in Hillsborough, North Carolina. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does John Bryan Marshall practice?
John Marshall practices at 2217 Old Nc, Hillsborough, NC 27278. John Marshall's primary practice is Triangle Visions Optometry in Hillsborough, North Carolina. Dmand AI also links John Marshall to 3 medical groups, 2 group practices and clinics and 1 physician office.
What is John Bryan Marshall's office phone number?
The practice phone on file for John Marshall is (919) 544-2020.
What is John Bryan Marshall's medical license number?
John Marshall holds North Carolina license 1551.
Does John Bryan Marshall accept Medicare?
Yes. CMS lists John Marshall as accepting Medicare assignment.
How many Medicare patients does John Bryan Marshall see?
CMS counts 87 Medicare patients who saw John Marshall in 2024, with an average age of 75.
Where did John Bryan Marshall go to medical school?
John Marshall graduated from Pennsylvania College of Optometry in 1998.
Has John Bryan Marshall received payments from drug or device companies?
CMS Open Payments shows $182 in general payments to John Marshall from 2 companies from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has John Bryan Marshall been practicing?
John Marshall graduated from medical school in 1998, 28 years ago.
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