Doctor profile · Federal record
Dr. James Warren, M.D.
Otolaryngology Physician (CMS: Otolaryngology) · Boulder, CO
- NPI 1194743450
- Accepts Medicare
- 42 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4745 Arapahoe Ave, Ste 130
Boulder, CO 803031080
(303) 443-2771
fax (303) 443-2784
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- March 7, 2023
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207Y00000X — NUCC code
- State license (1)
- Colorado #29977
- Medicaid
- CO #01299775
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194743450. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,047
Distinct HCPCS
10
Medicare allowed
$111,334
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 244 | 165 | $131 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 142 | 113 | $92 | |
92557 |
Comprehensive hearing and speech recognition test | 125 | 121 | $38 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 117 | 117 | $170 | |
31231 |
Diagnostic exam of nasal passages using an endoscope | 104 | 79 | $199 | |
92567 |
Test to assess middle ear function | 75 | 74 | $17 | |
69210 |
Removal of impacted ear wax | 72 | 66 | $44 | |
31575 |
Diagnostic exam of voice box using a flexible endoscope | 64 | 54 | $136 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 44 | 43 | $114 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 24 | 22 | $58 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 64. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$105
Transactions
4
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AERIN MEDICAL INC. | 2 | $59.64 | |
| Regeneron Healthcare Solutions, Inc. | 1 | $24.09 | |
| Integra LifeSciences Corporation | 1 | $20.99 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
204
Patients
89
Total drug cost
$5,414
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Fluticasone Propionate | Generic | 88 | 33 | $2,092 |
| Ipratropium Bromide | Generic | 46 | 15 | $1,658 |
| Dexamethasone Sodium Phosphate | Generic | 20 | 11 | $1,106 |
| Montelukast Sodium | Generic | 19 | 0 | $310 |
| Prednisone | Generic | 18 | 17 | $90 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 13 | 13 | $159 |
Hospital affiliations
Frequently asked questions
What is Dr. James Warren's medical specialty?
Dr. James Warren practices Otolaryngology Physician in Boulder, CO.
Where does Dr. James Warren practice?
Dr. James Warren practices at 4745 Arapahoe Ave, Boulder, CO 803031080. Office phone: 3034432771.
What is Dr. James Warren's NPI?
Dr. James Warren's National Provider Identifier (NPI) is 1194743450, issued by NPPES.
Does Dr. James Warren accept Medicare assignment?
Yes. Dr. James Warren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Warren 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); Comprehensive hearing and speech recognition test (HCPCS 92557). Source: CMS Medicare Physician & Other Practitioners file.