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MARC DUKE AGCNS-BC
NPI 1659943322
Clinical Nurse Specialist in Austin, TX

Active since July 13, 2021PECOS EnrolledAccepts Medicare Assignment
1201 W 38TH ST, AUSTIN, TX 78705(512) 324-1000 Get Directions Write a Review

NPPES record last updated: August 12, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 12, 2025, Sep 9, 2021, Jul 13, 2021 (3 updates tracked since 2021).

About Marc Duke Agcns-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARC DUKE AGCNS-BC (NPI 1659943322) is an individual clinical nurse specialist in Austin, Texas, licensed in Texas (1047212) and active in the NPI registry since July 2021. He is enrolled in Medicare PECOS, is affiliated with Ascension Seton Medical Center Austin, and maintains a secondary practice location in Round Rock.

NPPES Registry Identity

NPI1659943322
Entity TypeIndividualMale
Primary Taxonomy364S00000X
Provider Legal NameMARC DUKECredential: AGCNS-BC
Location Address1201 W 38TH STAustin, TX 78705-1006
Mailing Address6003 Marilyn DrAustin, TX 78757-4426 · (214) 335-7997
Phone(512) 324-1000
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateJuly 13, 2021
Last NPPES UpdateAugust 12, 20253 updates tracked since enumeration
NPPES CertifiedAugust 12, 2025
✔ NPI 1659943322 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code364S00000X
License✔ Licensed in TX · 1047212
Definition
A registered nurse who, through a graduate degree program in nursing, or through a formal post-basic education program or continuing education courses and clinical experience, is expert in a specialty area of nursing practice within one or more of the components of direct patient/client care, consultation, education, research and administration.
1201 W 38TH ST, Austin, TX 78705
Open in Google Maps ↗

Secondary Practice Location 1

Location 14681 College Park DrRound Rock, TX 78665-1526 · Phone (512) 671-1100

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marc Duke Agcns-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4688078322
PECOS Enrollment IDI20210803002221
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
175 services43 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
99 services34 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
22 services12 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
16 services16 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Seton Medical Center Austin

Acute Care Hospitals · Austin, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450056
Location1201 W 38th StAustin, TX 78705 · Travis County
Emergency services Birthing friendly

Ascension Seton Northwest

Acute Care Hospitals · Austin, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450867
Location11113 Research BoulevardAustin, TX 78759 · Travis County
Emergency services Birthing friendly

Ascension Seton Hays

Acute Care Hospitals · Kyle, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670056
Location6001 Kyle PkwyKyle, TX 78640 · Hays County
Emergency services Birthing friendly

Seton Medical Center Harker Heights

Acute Care Hospitals · Harker Heights, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number670080
Location850 W Central Texas ExpresswayHarker Heights, TX 76548 · Bell County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78705 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$131.95 typical visit price
range $57.88 – $174.00
Typical copayment $32.98 (range $14.47 – $43.50)
Most-billed visit code 99204
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PRIYANKA GURRU
Psychiatry & Neurology (Neurology)
1201 W 38TH ST
AUSTIN, TX 78705
Travis County (512) 495-5555
MRS. JESSICA WILLS FNP-C
Nurse Practitioner (Family)
1201 W 38TH ST
AUSTIN, TX 78705
Travis County (512) 324-1000
CHLOE CULLEN RN
Registered Nurse (Critical Care Medicine)
1201 W 38TH ST
AUSTIN, TX 78705
Travis County (512) 324-1000
THERESA CAROLINE THORNHILL
Nurse Practitioner (Neonatal)
1201 W 38TH ST
AUSTIN, TX 78705
Travis County (512) 324-1085
DR. DONALD KYLE KELLEY M.D.
Pediatrics (Neonatal-Perinatal Medicine)
1201 W 38TH ST, NEONATAL OFFICE
AUSTIN, TX 78705
Travis County (512) 324-1086
KYLE ALEXANDER SCHWARTZ PA-C
Physician Assistant
1201 W 38TH ST
AUSTIN, TX 78705
Travis County (512) 324-1000
DR. MELODY S NGUYEN DNP, APRN CPNP-PC
Nurse Practitioner (Pediatrics)
1201 W 38TH ST
AUSTIN, TX 78705
Travis County (512) 324-1000
KENNETH WILLIAM DOMUCZICZ JR. MD
Emergency Medicine
1201 W 38TH ST, #101
AUSTIN, TX 78705
Travis County (512) 324-1010

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marc Duke's NPI number?

The NPI number for Marc Duke is 1659943322. It was assigned to this individual provider in the NPPES registry on July 13, 2021.

Where is Marc Duke located?

Marc Duke practices at 1201 W 38th St, Austin, TX 78705. The listed phone number is (512) 324-1000.

What is Marc Duke's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist with taxonomy code 364S00000X.

Is Marc Duke enrolled in Medicare?

Yes. Marc Duke is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Marc Duke accept?

Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Marc Duke as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Marc Duke affiliated with any hospitals?

According to CMS data, Marc Duke is affiliated with Ascension Seton Medical Center Austin, Ascension Seton Northwest, Ascension Seton Hays and Seton Medical Center Harker Heights.

When was this NPI record last updated?

The NPPES record for Marc Duke was last updated on August 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.