Doctor profile · Federal record
Dr. Karl Stempel, FNP
Family Nurse Practitioner (CMS: Nurse Practitioner) · Tucson, AZ
- NPI 1861419566
- Accepts Medicare
- 21 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4685 E Grant RD
Tucson, AZ 857122618
(855) 925-4733
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- March 30, 2018
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Arizona #AP2226
- Medicaid
- AZ #964917
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1861419566. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
223
Distinct HCPCS
6
Medicare allowed
$20,714
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 60 | 60 | $137 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 56 | 52 | $105 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 44 | 44 | $92 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 27 | 27 | $74 | |
81003 |
Automated urinalysis test | 22 | 22 | $2 | |
87426 |
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | 14 | 14 | $35 |
In context: peer comparison
Among 198 peers in Tucson Family Nurse Practitioner, average services per provider: 231. This provider delivers 1.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
499
Patients
488
Total drug cost
$5,830
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 76 | 73 | $180 |
| Doxycycline Hyclate | Generic | 57 | 57 | $847 |
| Cephalexin | Generic | 55 | 52 | $404 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 49 | 49 | $571 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 40 | 39 | $917 |
| Fluticasone Propionate | Generic | 36 | 36 | $426 |
| Cefdinir | Generic | 26 | 26 | $401 |
| Ciprofloxacin Hcl | Generic | 24 | 24 | $165 |
| Methocarbamol | Generic | 23 | 22 | $90 |
| Azithromycin | Generic | 22 | 21 | $108 |
Frequently asked questions
What is Dr. Karl Stempel's medical specialty?
Dr. Karl Stempel practices Family Nurse Practitioner in Tucson, AZ.
Where does Dr. Karl Stempel practice?
Dr. Karl Stempel practices at 4685 E Grant RD, Tucson, AZ 857122618. Office phone: 8559254733.
What is Dr. Karl Stempel's NPI?
Dr. Karl Stempel's National Provider Identifier (NPI) is 1861419566, issued by NPPES.
Does Dr. Karl Stempel accept Medicare assignment?
Yes. Dr. Karl Stempel accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karl Stempel commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.