KARL A DUNCAN (M.D.) – Interventional Cardiology Physician, NPI 1265465017

KARL A DUNCAN (M.D.) is a healthcare provider. based in Dallas, Texas. specializing in INTERNAL MEDICINE, CARDIOVASCULAR DISEASE (CARDIOLOGY), INTERVENTIONAL CARDIOLOGY. They hold the professional credentials M.D.. They hold a License No. 58167 (GA). The NPI Number for KARL A DUNCAN (M.D.) is 1265465017

Main info

Male
27 Years Of Experience
Accepts Medicare Assignment
Name
KARL A DUNCAN (M.D.)
NPI
1265465017
Phone
(337) 494-2921
Address
PO BOX 122152 DEPT 2152
Enumeration Date
7 July 2006
Last Update Date
3 April 2023

Doctor Profile

Medical School Name
LOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Secondary Phone
3374943278
Graduation Year
1999 (27 years ago)
PAC ID
4789680547
Group Practice PAC ID
4082689914
Professional Enrollment ID
I20130412000587
Address ID
LA706018990LA1717XBLVD402

Contacts

Secure Messaging
karl.duncan.1@1930.direct.athenahealth.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience98
Completeness85
Years active:19State licenses:5Other namesUpdated within 12 months

1,228 INTERNAL MEDICINE in MS

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Provider Addresses for KARL A DUNCAN (M.D.)

  • PO BOX 122152 DEPT 2152

    DALLAS, TX 753120001

    Phone: (337) 494-2921

    Fax: (337) 494-6523

    Type: Mailing

  • 200, Hardy Street, Hattiesburg, Forrest County, Mississippi, 39401, United States

    HATTIESBURG, MS 394021331

    Phone: (601) 261-5700

    Fax: (601) 261-5777

    Type: Location

  • 1717 OAK PARK BLVD FL 2

    LAKE CHARLES, LA 706018990

    Phone: (337) 494-3278

    Fax: (337) 494-3240

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 84 Open Payments records for all available years, with a total value of $1,942.

Total Amount is formed as General ($1,942) + Research ($0) + Ownership ($0) = $1,942.

Last reported payment date: 2024-12-12 • Largest payer in this snapshot: Philips North America LLC ($426).

Total Amount

$1,942

General + Research + Ownership

Payments

84

Total payment records

General Amount

$1,942

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-12

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2018-12-22

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20130412000587IInternal MedicineLATBD
I20181222000221ICardiovascular Disease (Cardiology)NMTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
93010Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only797645$0
93306Ultrasound of heart with color-depicted blood flow, rate, direction and valve function308302$0
99214Established patient office or other outpatient visit, 30-39 minutes247155$0
93000Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report134119$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes10555$0
View full utilization report →

Insurance plans in this area (ZIP 75312)

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Provider's Procedures

KARL A DUNCAN (M.D.) performs procedures in INTERNAL MEDICINE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
CARDIOVASCULAR DISEASE (CARDIOLOGY)TN78452Nuclear medicine study of vessels of heart using drugs or exercise multiple studies104104
CARDIOVASCULAR DISEASE (CARDIOLOGY)TN92928Catheter insertion of stents in major coronary artery or branch, accessed through the skin2118
CARDIOVASCULAR DISEASE (CARDIOLOGY)TN93458Insertion of catheter in left heart for imaging of blood vessels or grafts and left lower heart6965

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4082689914View full group profile
NameSpecialtyState
-LA
Nurse PractitionerLA
Nurse PractitionerLA
Cardiovascular Disease (Cardiology), Internal MedicineLA
Nurse PractitionerTX
Interventional Cardiology, Cardiovascular Disease (Cardiology)TX
Nurse PractitionerLA
Nurse PractitionerLA
Nurse PractitionerLA
Nurse PractitionerLA

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Frequently asked questions

What is KARL A DUNCAN (M.D.)'s NPI number?
KARL A DUNCAN (M.D.)'s NPI is 1265465017 — the number used across U.S. healthcare to identify this provider.
Is KARL A DUNCAN (M.D.) shown as active in public data?
Registry records indicate KARL A DUNCAN (M.D.) maintains an active NPI.
What area of care is associated with KARL A DUNCAN (M.D.)?
KARL A DUNCAN (M.D.)'s record emphasizes Interventional Cardiology Physician. Clinical services aligned with this taxonomy classification.
Where in Texas is KARL A DUNCAN (M.D.) registered?
Use Dallas, Texas as the headline location for KARL A DUNCAN (M.D.) here.
Can I trust this NPI listing for KARL A DUNCAN (M.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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