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KARSTA LYNN MARCK MSN, APRN, FNP-C
NPI 1073115952
Nurse Practitioner - Family in Houston, TX

Active since November 15, 2020PECOS Enrolled
1900 NORTH LOOP W STE 580, HOUSTON, TX 77018(713) 714-5376 Get Directions Write a Review

NPPES record last updated: August 25, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 25, 2026, Jan 17, 2023, Oct 23, 2022 and 1 more (4 updates tracked since 2020).

About Karsta Lynn Marck Msn, Aprn, Fnp-c NPPES

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

KARSTA LYNN MARCK MSN, APRN, FNP-C (NPI 1073115952) is an individual family provider in Houston, Texas, licensed in Texas (1045568) and active in the NPI registry since November 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1073115952
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKARSTA LYNN MARCKCredential: MSN, APRN, FNP-C
Location Address1900 NORTH LOOP W STE 580Houston, TX 77018-8163
Mailing Address1900 North Loop W Ste 580Houston, TX 77018-8163 · (713) 714-5376
Phone(713) 714-5376
Sole ProprietorNo
Enumeration DateNovember 15, 2020
Last NPPES UpdateAugust 25, 20264 updates tracked since enumeration
NPPES CertifiedAugust 25, 2026
✔ NPI 1073115952 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in TX · 1045568
1900 NORTH LOOP W STE 580, Houston, TX 77018
Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karsta Lynn Marck Msn, Aprn, Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Karsta Marck reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kelsey-Seybold Medical Group, PLLC
7.4 mi
Multi-Specialty
2727 W HOLCOMBE BLVD
Houston, TX 77025
  • Reassigned Medicare billing, Texas enrollment
  • 1,649 clinicians in this Medicare group
NPI 1013915255 (713) 442-0000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77018 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
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
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 5

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

HALIE P SHAH MD
Internal Medicine
1900 NORTH LOOP W STE 580
HOUSTON, TX 77018
Harris County (713) 714-5376
NICHOLE R THIBODEAUX PA-C
Physician Assistant (Medical)
1900 NORTH LOOP W STE 580
HOUSTON, TX 77018
Harris County (713) 714-5376
AILIS ROOSE PA-C
Physician Assistant (Medical)
1900 NORTH LOOP W STE 580
HOUSTON, TX 77018
Harris County (713) 714-5376
JACLYN HERFARTH HARRISON MD
Internal Medicine
1900 NORTH LOOP W STE 580
HOUSTON, TX 77018
Harris County (713) 714-5376
ANUHYA MANNE PA-C
Physician Assistant (Medical)
1900 NORTH LOOP W STE 580
HOUSTON, TX 77018
Harris County (713) 714-5376

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 Karsta Marck's NPI number?

The NPI number for Karsta Marck is 1073115952. It was assigned to this individual provider in the NPPES registry on November 15, 2020.

Where is Karsta Marck located?

Karsta Marck practices at 1900 North Loop W Ste 580, Houston, TX 77018. The listed phone number is (713) 714-5376.

What is Karsta Marck's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Karsta Marck enrolled in Medicare?

Yes. Karsta Marck is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Karsta Marck's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karsta Marck reassigns Medicare benefits to Kelsey-Seybold Medical Group, PLLC (Houston, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karsta Marck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karsta Marck accept?

Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Karsta Marck 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.

When was this NPI record last updated?

The NPPES record for Karsta Marck was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.