Dewey Mcwhirter, MD
NPI 1215050117 · Sleep Specialist (PhD) · Powell, TN
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dewey Mcwhirter, MD is a Sleep Specialist (PhD) provider in Powell, TN (NPI 1215050117).
Provider details
- NPI number
- 1215050117
- Entity type
- Individual
- Primary specialty
- Sleep Specialist (PhD)Other Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 054325 (GA)
Specialties & taxonomies
Other Service Providers
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
19 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
600 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 99 | $89 |
| Sleep Study in Sleep Lab With Continuous Airway Pressure (6 Years Or Older)95811 | 65 | $112 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 64 | $87 |
| Sleep Study in Sleep Lab With Continuous Airway Pressure (6 Years Or Older)95811 | 61 | $113 |
| Sleep Study in Sleep Lab (6 Years Or Older)95810 | 53 | $105 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 104 | 43 |
| Trazodone Hcl | 42 | 14 |
| Modafinil | 35 | — |
| Clonazepam | 34 | — |
| Doxepin Hcl | 28 | 13 |
| Zolpidem Tartrate | 26 | 15 |
| Hydroxyzine Hcl | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$507 across 18 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)
- 10800 Parkside Dr Ste 202Knoxville, TN 37934-1922Phone: (865) 218-7463Fax: (865) 218-7275
Registry dates
- Enumerated
- 2007-04-08
- Last updated
- 2024-09-06
- Certified
- 2024-09-06
Frequently asked questions
- What is Dewey Mcwhirter's NPI number?
- Dewey Mcwhirter's National Provider Identifier (NPI) is 1215050117, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dewey Mcwhirter's specialty?
- Dewey Mcwhirter is listed in the NPPES registry with a primary specialty of Sleep Specialist (PhD) (Other Service Providers).
- Where is Dewey Mcwhirter located?
- Dewey Mcwhirter's practice location on file with NPPES is 7557 Dannaher Dr Ste 240, Powell, TN 37849-3563.
- What is Dewey Mcwhirter's phone number?
- The practice phone number listed in the NPPES registry for Dewey Mcwhirter is (865) 859-7800.
- Does Dewey Mcwhirter accept Medicare?
- Dewey Mcwhirter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dewey Mcwhirter's NPI active?
- Yes — Dewey Mcwhirter's NPI (1215050117) is active in the NPPES registry as of the last update on 2024-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.