Doctor profile · Federal record
Dr. Stefen Ammon, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Emergency Medicine Physician · Emergency Medicine Physician · Emergency Medicine Physician · Littleton, CO
- NPI 1730210733
- MIPS 40.0 / 100 · 2023
- 23 yrs in practice
- Licensed in 4 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 4 locations .
- Primary practice
-
7700 S Broadway, Littleton Adventist Hospital, Emergency Dept.
Littleton, CO 801222602
(303) 778-5666
fax (303) 778-5787 - Additional location
-
3455 Ringsby CT Ste 102
Denver, CO 802164923
(303) 500-1518
fax (720) 598-0440 - Additional location
-
1705 W University Dr Ste 104
Tempe, AZ 852813269
(480) 493-3444
fax (480) 867-4464 - Additional location
-
3841 W Charleston Blvd Ste 203
Las Vegas, NV 891021858
(702) 848-4443
fax (702) 805-0299 - Mailing address
-
1241 W Mineral Ave, Suite 100
Littleton, CO 801205685
Show 1 more location
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- May 15, 2020
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (5)
- Idaho #MC-0362 · Colorado #CDRH.0045573 · Arizona #58357 · Nevada #18674 · Colorado #45573
- Medicaid
- CO #45607753
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1730210733. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
101
Distinct HCPCS
4
Medicare allowed
$12,289
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 34 | 34 | $175 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 32 | 29 | $8 | |
99291 |
Critical care, first 30-74 minutes | 20 | 20 | $213 | |
99284 |
Emergency department visit with moderate level of medical decision making | 15 | 14 | $121 |
In context: peer comparison
Among 11 peers in this city , average services per provider: 71. This provider delivers 1.4× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Stefen Ammon's medical specialty?
Dr. Stefen Ammon practices Emergency Medicine Physician in Littleton, CO.
Where does Dr. Stefen Ammon practice?
Dr. Stefen Ammon practices at 7700 S Broadway, Littleton, CO 801222602. Office phone: 3037785666.
What is Dr. Stefen Ammon's NPI?
Dr. Stefen Ammon's National Provider Identifier (NPI) is 1730210733, issued by NPPES.
Does Dr. Stefen Ammon accept Medicare assignment?
Dr. Stefen Ammon does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Stefen Ammon commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.