Doctor profile · Federal record
Dr. Gregory Kaczmarczyk, M.D.
Family Medicine Physician (CMS: Family Practice) · Aurora, CO
- NPI 1790885820
- Accepts Medicare
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1421 S Potomac St Ste 320
Aurora, CO 800124512
(303) 750-1920 - Additional location
-
4720 Tejon St
Denver, CO 802111257
(303) 433-6563
fax (303) 433-5614 - Mailing address
-
Po Box 35380
Las Vegas, NV 891335380
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- December 2, 2024
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Colorado #31915
- Medicaid
- CO #01319151
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790885820. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
212
Distinct HCPCS
5
Medicare allowed
$21,820
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 108 | 73 | $128 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 37 | 32 | $91 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 34 | 34 | $130 | |
81003 |
Automated urinalysis test | 19 | 15 | $2 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 14 | 14 | $15 |
In context: peer comparison
Among 42 peers in this city , average services per provider: 80. This provider delivers 2.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,489
Patients
544
Total drug cost
$29,013
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 228 | 80 | $3,051 |
| Levothyroxine Sodium | Generic | 169 | 66 | $4,913 |
| Lisinopril | Generic | 125 | 51 | $1,238 |
| Losartan Potassium | Generic | 111 | 41 | $2,755 |
| Metformin Hcl | Generic | 110 | 41 | $1,384 |
| Tamsulosin Hcl | Generic | 99 | 37 | $2,487 |
| Rosuvastatin Calcium | Generic | 88 | 35 | $1,548 |
| Simvastatin | Generic | 86 | 34 | $1,318 |
| Amlodipine Besylate | Generic | 72 | 31 | $468 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 72 | 25 | $2,432 |
Frequently asked questions
What is Dr. Gregory Kaczmarczyk's medical specialty?
Dr. Gregory Kaczmarczyk practices Family Medicine Physician in Aurora, CO.
Where does Dr. Gregory Kaczmarczyk practice?
Dr. Gregory Kaczmarczyk practices at 1421 S Potomac St Ste 320, Aurora, CO 800124512. Office phone: 3037501920.
What is Dr. Gregory Kaczmarczyk's NPI?
Dr. Gregory Kaczmarczyk's National Provider Identifier (NPI) is 1790885820, issued by NPPES.
Does Dr. Gregory Kaczmarczyk accept Medicare assignment?
Yes. Dr. Gregory Kaczmarczyk accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Kaczmarczyk commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.