Doctor profile · Federal record
Dr. Karl Sitz, M.D.
Allergy & Immunology (Internal Medicine) Physician · Little Rock, AR
- NPI 1518959691
- MIPS 83.2 / 100 · 2023
- 21 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
18 Corporate Hill Drive, Suite 110
Little Rock, AR 722054565
(501) 224-1156
fax (501) 801-5561 - Mailing address
-
18 Corporate Hill Dr, Suite 110
Little Rock, AR 722054565
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 207RA0201X — NUCC code
- State license (1)
- Arkansas #C7148
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518959691. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,306
Distinct HCPCS
8
Medicare allowed
$57,515
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 3,082 | 50 | $3 | |
95165 |
Professional service for preparation and provision of 1 or more antigens | 1,021 | 88 | $13 | |
95115 |
Professional service for single injection of allergen | 824 | 138 | $9 | |
95117 |
Professional service for multiple injections of allergen | 106 | 16 | $10 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 105 | 83 | $70 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 77 | 74 | $106 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 63 | 63 | $152 | |
94010 |
Test to measure expiratory airflow and volume | 28 | 25 | $24 |
In context: peer comparison
Among 1 peers in Little Rock Allergy & Immunology (Internal Medicine) Physician, average services per provider: 663. This provider delivers 8.0× the peer median.Open Payments
Industry payments received
All-time total
$4,116
Transactions
14
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Csl Behring | 5 | $3,918.10 | |
| Grifols USA, LLC | 3 | $76.19 | |
| Regeneron Healthcare Solutions, INC. | 3 | $70.69 | |
| Genzyme Corporation | 1 | $19.73 | |
| GlaxoSmithKline, LLC. | 1 | $15.66 | |
| Genentech USA, INC. | 1 | $15.59 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
564
Patients
138
Total drug cost
$825,606
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Azelastine Hcl | Generic | 141 | 51 | $5,529 |
| Fluticasone Propionate | Generic | 67 | 18 | $987 |
| Ipratropium Bromide | Generic | 51 | 22 | $2,158 |
| Montelukast Sodium | Generic | 46 | 12 | $551 |
| Doxepin Hcl | Generic | 38 | 0 | $1,276 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 36 | 0 | $25,023 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 31 | 0 | $19,380 |
| Symbicort (Budesonide/Formoterol Fumarate) | Brand | 31 | 0 | $13,090 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 28 | 15 | $947 |
| Epinephrine | Generic | 22 | 20 | $6,704 |
Frequently asked questions
What is Dr. Karl Sitz's medical specialty?
Dr. Karl Sitz practices Allergy & Immunology (Internal Medicine) Physician in Little Rock, AR.
Where does Dr. Karl Sitz practice?
Dr. Karl Sitz practices at 18 Corporate Hill Drive, Little Rock, AR 722054565. Office phone: 5012241156.
What is Dr. Karl Sitz's NPI?
Dr. Karl Sitz's National Provider Identifier (NPI) is 1518959691, issued by NPPES.
What procedures does Dr. Karl Sitz commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Professional service for single injection of allergen (HCPCS 95115). Source: CMS Medicare Physician & Other Practitioners file.