John Chewning, M.D.
NPI 1780798652 · Sleep Medicine (Psychiatry & Neurology) Physician · Winston Salem, NC
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Chewning, M.D. is a Sleep Medicine (Psychiatry & Neurology) Physician provider in Winston Salem, NC (NPI 1780798652).
Provider details
- NPI number
- 1780798652
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 200200876 (NC)
Specialties & taxonomies
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
982 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 | 280 | $120 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 185 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 134 | $84 |
| Sleep Study in Sleep Lab (6 Years Or Older)95810 | 97 | $109 |
| Sleep Study Including Heart Rate, Breathing, Airflow, and Effort95806 | 72 | $41 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 109 | 16 |
| Clonazepam | 100 | 14 |
| Armodafinil | 95 | 18 |
| Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride | 75 | 25 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 48 | — |
| Modafinil | 43 | — |
| Zolpidem Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (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
- 2006-08-18
- Last updated
- 2020-10-25
- Certified
- 2020-09-27
Frequently asked questions
- What is John Chewning's NPI number?
- John Chewning's National Provider Identifier (NPI) is 1780798652, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Chewning's specialty?
- John Chewning is listed in the NPPES registry with a primary specialty of Sleep Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
- Where is John Chewning located?
- John Chewning's practice location on file with NPPES is 2025 Frontis Plaza Blvd, Winston Salem, NC 27103-5663.
- What is John Chewning's phone number?
- The practice phone number listed in the NPPES registry for John Chewning is (336) 277-2200.
- Does John Chewning accept Medicare?
- John Chewning is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Chewning's NPI active?
- Yes — John Chewning's NPI (1780798652) is active in the NPPES registry as of the last update on 2020-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.