Doctor profile · Federal record
Dr. Mark Willis, M.D.
Plastic Surgery Within the Head & Neck (Otolaryngology) Physician (CMS: Otolaryngology) · Otolaryngology Physician · Highlands Ranch, CO
- NPI 1649423617
- Accepts Medicare
- MIPS 93.3 / 100 · 2023
- 19 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1500 Park Central Dr
Highlands Ranch, CO 801296688
(720) 848-0000 - Additional location
-
12605 E 16Th Ave
Aurora, CO 800452545 - Mailing address
-
Po Box 110429
Aurora, CO 800420429
Credentials & registration
- NPI registered
- November 2008 — 18 yrs on file
- Profile last updated
- December 23, 2025
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207YX0007X — NUCC code
- State license (1)
- Colorado #51080
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649423617. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
618
Distinct HCPCS
9
Medicare allowed
$79,154
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 133 | 104 | $92 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 112 | 112 | $169 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 88 | 88 | $115 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 86 | 74 | $130 | |
31231 |
Diagnostic exam of nasal passages using an endoscope | 68 | 59 | $200 | |
31575 |
Diagnostic exam of voice box using a flexible endoscope | 53 | 46 | $135 | |
69210 |
Removal of impacted ear wax | 44 | 38 | $48 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 18 | 18 | $183 | |
92504 |
Exam of ear using a microscope | 16 | 15 | $31 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 71. This provider delivers 8.7× the peer median.Open Payments
Industry payments received
All-time total
$43
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Hologic Sales and Service, LLC | 1 | $24.42 | |
| Olympus America Inc. | 1 | $18.34 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
231
Patients
143
Total drug cost
$4,030
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Fluticasone Propionate | Generic | 66 | 34 | $974 |
| Famotidine | Generic | 51 | 24 | $808 |
| Mupirocin | Generic | 27 | 21 | $242 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 24 | 23 | $135 |
| Omeprazole | Generic | 24 | 15 | $349 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 15 | 15 | $291 |
| Ipratropium Bromide | Generic | 13 | 0 | $1,170 |
| Prednisone | Generic | 11 | 11 | $61 |
Frequently asked questions
What is Dr. Mark Willis's medical specialty?
Dr. Mark Willis practices Plastic Surgery Within the Head & Neck (Otolaryngology) Physician in Highlands Ranch, CO.
Where does Dr. Mark Willis practice?
Dr. Mark Willis practices at 1500 Park Central Dr, Highlands Ranch, CO 801296688. Office phone: 7208480000.
What is Dr. Mark Willis's NPI?
Dr. Mark Willis's National Provider Identifier (NPI) is 1649423617, issued by NPPES.
Does Dr. Mark Willis accept Medicare assignment?
Yes. Dr. Mark Willis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Willis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.