Doctor profile · Federal record

Dr. Karen Zunker, APRN

Family Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · San Marcos, TX

  • NPI 1629578018
  • Accepts Medicare
  • MIPS 86.7 / 100 · 2023
  • 9 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1308 Wonder World Dr
San Marcos, TX 786667532
(512) 396-5199
fax (512) 396-5206
Mailing address
Po Box 911230
Dallas, TX 753911230

Credentials & registration

NPPES · NUCC
NPI registered
February 2018 — 8 yrs on file
Profile last updated
August 4, 2021
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
Texas #AP141056 · Oklahoma #127165

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629578018. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,012
Distinct HCPCS
10
Medicare allowed
$55,095
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 381 269 $103
36415 Insertion of needle into vein for collection of blood sample 153 120 $8
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 136 113 $8
80053 Blood test, comprehensive group of blood chemicals 97 84 $10
99215 Established patient office or other outpatient visit, 40-54 minutes 73 67 $144
82728 Ferritin (blood protein) level 45 42 $13
83540 Iron level 45 42 $6
83550 Iron binding capacity 45 42 $9
86300 Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 22 15 $20
83615 Lactate dehydrogenase (enzyme) level 15 13 $6

In context: peer comparison

Among 10 peers in this city , average services per provider: 606. This provider delivers 1.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
308
Patients
150
Total drug cost
$6,117
Drug Type Claims Patients Total cost
Ondansetron Odt (Ondansetron) Brand 92 65 $1,248
Prochlorperazine Maleate Generic 67 48 $849
Lidocaine-Prilocaine (Lidocaine/Prilocaine) Brand 38 25 $497
Letrozole Generic 25 0 $645
Dexamethasone Generic 21 12 $609
Levothyroxine Sodium Generic 15 0 $681
Pantoprazole Sodium Generic 14 0 $64
Acyclovir Generic 13 0 $128
Tramadol Hcl Generic 12 0 $112
Exemestane Generic 11 0 $1,284

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Zunker's medical specialty?
Dr. Karen Zunker practices Family Nurse Practitioner in San Marcos, TX.
Where does Dr. Karen Zunker practice?
Dr. Karen Zunker practices at 1308 Wonder World Dr, San Marcos, TX 786667532. Office phone: 5123965199.
What is Dr. Karen Zunker's NPI?
Dr. Karen Zunker's National Provider Identifier (NPI) is 1629578018, issued by NPPES.
Does Dr. Karen Zunker accept Medicare assignment?
Yes. Dr. Karen Zunker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Zunker commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025). Source: CMS Medicare Physician & Other Practitioners file.