Mark Willis, M.D.
NPI 1649423617 · Plastic Surgery within the Head & Neck (Otolaryngology) Physician · Highlands Ranch, CO
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Willis, M.D. is a Plastic Surgery within the Head & Neck (Otolaryngology) Physician provider in Highlands Ranch, CO (NPI 1649423617).
Provider details
- NPI number
- 1649423617
- Entity type
- Individual
- Primary specialty
- Plastic Surgery within the Head & Neck (Otolaryngology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 51080 (CO)
Specialties & taxonomies
- Plastic Surgery within the Head & Neck (Otolaryngology) PhysicianPrimary207YX0007XLicense 51080 (CO)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
692 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 161 | $92 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 129 | $168 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 98 | $130 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 78 | $130 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 64 | $112 |
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 63 | 36 |
| Famotidine | 60 | 26 |
| Omeprazole | 31 | 15 |
| Mupirocin | 24 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 23 | 23 |
| Ipratropium Bromide | 13 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$43 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 12605 E 16th AveAurora, CO 80045-2545Phone: (720) 848-0000
Registry dates
- Enumerated
- 2008-11-03
- Last updated
- 2025-12-23
- Certified
- 2025-12-23
Frequently asked questions
- What is Mark Willis's NPI number?
- Mark Willis's National Provider Identifier (NPI) is 1649423617, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Willis's specialty?
- Mark Willis is listed in the NPPES registry with a primary specialty of Plastic Surgery within the Head & Neck (Otolaryngology) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Willis located?
- Mark Willis's practice location on file with NPPES is 1500 Park Central Dr, Highlands Ranch, CO 80129-6688.
- What is Mark Willis's phone number?
- The practice phone number listed in the NPPES registry for Mark Willis is (720) 848-0000.
- Does Mark Willis accept Medicare?
- Mark Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Willis's NPI active?
- Yes — Mark Willis's NPI (1649423617) is active in the NPPES registry as of the last update on 2025-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.