Dr. James Nicholas Semertzides, MD
- Medicare services, 2020
- 1,586
- Part D claims, 2024
- 14
- Industry payments
- $576
- Affiliated sites
- 4
- Medical groups
- 4
- Practice address
- 3000 Coliseum Dr, Hampton, VA 23666
- Practice phone
- Call (757) 736-2650
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sentara Norfolk General Hospital
Hampton, Virginia
Find Dr. Semertzides' 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. James Nicholas Semertzides is a cardiologist in Hampton, Virginia
Dr. Semertzides practices at Sentara Norfolk General Hospital in Hampton, Virginia.
Dr. Semertzides' NPI, 1932165560, was assigned on April 22, 2006. Dr. Semertzides holds New York license 1858851.
- NPI
- 1932165560NPI Registry (opens in a new tab)
- NPI enumeration date
- April 22, 2006
- NPI status
- Active
- Practice phone
- (757) 736-2650
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. James Nicholas Semertzides practices at Sentara Norfolk General Hospital in Hampton, Virginia
Dr. Semertzides' primary practice is Sentara Norfolk General Hospital, at 3000 Coliseum Dr, Hampton, VA 23666 in Hampton City. The practice phone is (757) 736-2650.
- Sentara Norfolk General Hospital3000 Coliseum Dr, Hampton, VA 23666 · Hampton CityPhone(757) 736-2650
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James Nicholas Semertzides is affiliated with 5 sites of care and 4 medical groups
Dr. Semertzides' primary practice is Sentara Norfolk General Hospital in Hampton, Virginia. The medical group on file is NYU Langone Orthopedic Surgery Associates. Dmand AI also links Dr. Semertzides to 4 more group practices and clinics and 3 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. James Nicholas Semertzides' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Semertzides practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sentara Norfolk General Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Nicholas Semertzides is one of 562 cardiologists in Virginia
Cardiovascular disease is Dr. Semertzides' primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Semertzides is licensed in New York.
Specialties and state licenses
- Cardiovascular disease, New YorkPrimary
Cardiologists near Dr. Semertzides
Counts of cardiologists 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. James Nicholas Semertzides billed Medicare for 1,586 services in 2020
CMS data shows 1,586 Medicare services from Dr. Semertzides across 10 procedure codes in 2020. Medicare paid $93,614 for them. Every service was in an office.
Dr. Semertzides' Medicare services by type, 2019 to 2020
- 2019
- 2020
- Tests and treatments
- 2019: 1,9612020: 94452%
- Office and hospital visits
- 2019: 1,4972020: 64257%
- Drugs given in the office
- 2019: 442020: 0100%
- Imaging
- 2019: 132020: 0100%
- Other services
- 2019: 262020: 0100%
Dr. Semertzides compared with the Virginia median for cardiologists, 2020
- Dr. Semertzides
- Virginia median
- Medicare services
- 1,586vs 2,25230% below
- Part D claims
- 452vs 1,47269% below
Medians across 562 cardiologists in Virginia with Dmand AI profiles that report each measure.
Dr. Semertzides' most billed Medicare procedure codes, 2020
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. Semertzides and other cardiologists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Nicholas Semertzides' patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Semertzides' median patient age at 76, with 42% women.
Dr. Semertzides' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women42%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. James Nicholas Semertzides wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Semertzides wrote 14 Medicare Part D claims. 100% of them were for generic drugs. They cover 18 drugs, with $8,992 in total drug cost. In 2020, CMS named 4,282 claims across 56 drugs.
Dr. Semertzides' most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 4,2822021: 45289%
Drugs named by CMS: 18 in 2021, 56 in 2020.
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. James Nicholas Semertzides received $576 in industry payments from 2016 to 2019
CMS Open Payments shows 13 general payments to Dr. Semertzides from 7 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $276.
General payments to Dr. Semertzides by program year, 2016 to 2019
Companies that paid Dr. Semertzides the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. James Nicholas Semertzides'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 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 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) |
| 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. James Nicholas Semertzides
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. James Nicholas Semertzides' NPI number?
Dr. James Nicholas Semertzides' NPI number is 1932165560. It was assigned on April 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James Nicholas Semertzides?
Dr. James Nicholas Semertzides is a cardiologist in Hampton, Virginia. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. James Nicholas Semertzides practice?
Dr. Semertzides practices at 3000 Coliseum Dr, Hampton, VA 23666. Dr. Semertzides' primary practice is Sentara Norfolk General Hospital in Hampton, Virginia. Dmand AI also links Dr. Semertzides to 4 group practices and clinics and 3 medical groups.
What is Dr. James Nicholas Semertzides' office phone number?
The practice phone on file for Dr. Semertzides is (757) 736-2650.
What is Dr. James Nicholas Semertzides' medical license number?
Dr. Semertzides holds New York license 1858851.
What medical group is Dr. James Nicholas Semertzides part of?
Dr. Semertzides is linked to NYU Langone Orthopedic Surgery Associates. Dmand AI links Dr. Semertzides to 3 more medical groups.
Does Dr. James Nicholas Semertzides accept Medicare?
Yes. CMS data shows Dr. Semertzides billed Medicare for 1,586 services in 2020.
What services does Dr. James Nicholas Semertzides bill to Medicare?
In 2020, Dr. Semertzides' most billed Medicare services were office visit, established patient (99214), heart test or procedure (93000) and heart test or procedure (93306).
What drugs does Dr. James Nicholas Semertzides prescribe most?
In 2021 Medicare Part D data, Dr. Semertzides' most prescribed drugs by claims were Metoprolol Succinate, Amlodipine Besylate and Simvastatin.
Has Dr. James Nicholas Semertzides received payments from drug or device companies?
CMS Open Payments shows $576 in general payments to Dr. Semertzides from 7 companies from 2016 to 2019. The largest total came from Pfizer Inc.
How long has Dr. James Nicholas Semertzides been practicing?
Dr. Semertzides graduated from medical school in 1983, 43 years ago.
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