Ryan Duncan, MD
NPI 1831308170 · Otolaryngology Physician · Brentwood, TN
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Duncan, MD is a Otolaryngology Physician provider in Brentwood, TN (NPI 1831308170).
Provider details
- NPI number
- 1831308170
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 42368 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
701 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 | 247 | $83 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 111 | $101 |
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 58 | $167 |
| Sleep Study Including Heart Rate, Breathing, Airflow, and Effort95806 | 42 | $41 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 41 | $115 |
| Sleep Study Including Heart Rate, Breathing, and Sleep Time95800 | 41 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 103 | 51 |
| Mupirocin | 39 | 36 |
| Doxycycline Hyclate | 39 | 37 |
| Amitriptyline Hcl | 37 | 15 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 34 | 32 |
| Dexamethasone | 27 | 22 |
| Baclofen | 22 | 11 |
| Azelastine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$922 across 30 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
Registry dates
- Enumerated
- 2007-05-22
- Last updated
- 2019-02-21
Frequently asked questions
- What is Ryan Duncan's NPI number?
- Ryan Duncan's National Provider Identifier (NPI) is 1831308170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Duncan's specialty?
- Ryan Duncan is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Duncan located?
- Ryan Duncan's practice location on file with NPPES is 1622 Westgate Cir, Brentwood, TN 37027-8019.
- What is Ryan Duncan's phone number?
- The practice phone number listed in the NPPES registry for Ryan Duncan is (629) 255-2231.
- Does Ryan Duncan accept Medicare?
- Ryan Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Duncan's NPI active?
- Yes — Ryan Duncan's NPI (1831308170) is active in the NPPES registry as of the last update on 2019-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.