2026 NPPES data Cardiovascular Disease Physician NPI 1790713600 MD
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TRISTRAM BAHNSON, MD

Cardiovascular Disease Physician in DURHAM, North Carolina. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 283 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$23.92
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: TRISTRAM BAHNSON, MD is a Cardiovascular Disease Physician ([object Object]) practicing in DURHAM, North Carolina with a Medicare Part D prescribing footprint of 1K claims across 283 beneficiaries — 38% brand-name prescribing . Industry payments of $23.92 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: TRISTRAM BAHNSON, MD filed 1,256 Medicare Part D claims in 2023 across DURHAM, North Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

TRISTRAM BAHNSON, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

TRISTRAM BAHNSON, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/29/2006

NPI 1790713600

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

1,256 59% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in North Carolina

How Cardiovascular Disease Physician compares to other specialties among North Carolina providers

North Carolina providers

Cardiovascular Disease Physician share within North Carolina

1. Cardiovascular Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cardiovascular Disease Physician share within North Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Cardiovascular Disease Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Cardiovascular Disease Physician ABMS/AOA estimate

Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

TRISTRAM BAHNSON, MD is a Cardiovascular Disease Physician provider practicing in DURHAM, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1790713600. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

TRISTRAM BAHNSON, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 4101 N ROXBORO ST, DURHAM, NC, 27704, with a listed phone of (919) 684-8111. NPI 1790713600 was issued on 06/29/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAHNSON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,256 prescription claims written by this provider, covering 283 Medicare beneficiaries and totaling roughly $595K in drug spend, split 38% brand-name and 62% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

4101 N ROXBORO ST
DURHAM, NC 27704

Provider Details

NPI 1790713600
Specialty Cardiovascular Disease Physician
Credentials MD
Gender Male
NPI Issued 06/29/2006

Hospital and facility affiliations

Facilities where TRISTRAM BAHNSON, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

DUKE HEALTH INTEGRATED PRACTICE INC
DURHAM, NC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for TRISTRAM BAHNSON, MD. Source: openpaymentsdata.cms.gov.

Total received

$24

Largest payer

Boston Scientific Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

TRISTRAM BAHNSON, MD — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 1,256 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,256
Total Claims
$595K
Total Drug Cost
283
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,874
Total Day Supply
85,683
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$543K
Generic Drug Cost
$53K

Patient Demographics

Average Patient Age
75.1 years
Avg HCC Risk Score
1.69
Gender Split
39% female / 61% male
Age Distribution
<65: 20, 65-74: 112, 75-84: 124, 85+: 27

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Metoprolol Succinate
300
Eliquis
Apixaban
272
Multaq
Dronedarone Hcl
98
Amiodarone Hcl
93
Dofetilide
82
Diltiazem Hcl
73
Diltiazem 24hr Er (Cd)
Diltiazem Hcl
64
Xarelto
Rivaroxaban
63
Flecainide Acetate
33
Sotalol
Sotalol Hcl
24

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Cardiovascular Disease Physician Overview

How TRISTRAM BAHNSON, MD fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

TRISTRAM BAHNSON, MD's 1,256 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as BAHNSON.

Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TRISTRAM BAHNSON, MD's specialty?
TRISTRAM BAHNSON, MD specializes in Cardiovascular Disease Physician and practices in DURHAM, North Carolina. Credentials: MD.
How much does TRISTRAM BAHNSON, MD prescribe under Medicare Part D?
In 2023, TRISTRAM BAHNSON, MD wrote 1,256 Medicare Part D claims totaling $595K in drug costs for 283 beneficiaries.
Where is TRISTRAM BAHNSON, MD located?
TRISTRAM BAHNSON, MD is located at 4101 N ROXBORO ST, DURHAM, NC, 27704. Phone: (919) 684-8111.
What is TRISTRAM BAHNSON, MD's NPI number?
TRISTRAM BAHNSON, MD's National Provider Identifier (NPI) is 1790713600, issued on 06/29/2006.
Does TRISTRAM BAHNSON, MD prescribe more brand-name or generic drugs?
TRISTRAM BAHNSON, MD's prescribing is 38% brand-name and 62% generic drugs by claim count, with $543K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does TRISTRAM BAHNSON, MD prescribe most often?
Based on 2023 Medicare Part D data, TRISTRAM BAHNSON, MD's most frequently prescribed drugs include Metoprolol Succinate, Eliquis, Multaq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TRISTRAM BAHNSON, MD accept Medicare?
TRISTRAM BAHNSON, MD appears in CMS Medicare data with 1,256 Part D claims and 283 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TRISTRAM BAHNSON, MD's credentials?
TRISTRAM BAHNSON, MD's NPI is 1790713600 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology