John Silvernail, MD
NPI 1356385462 · Public Health & General Preventive Medicine Physician · Greenville, NC
Enrolled with Medicare as Order and Referring Only - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Silvernail, MD is a Public Health & General Preventive Medicine Physician provider in Greenville, NC (NPI 1356385462).
Provider details
- NPI number
- 1356385462
- Entity type
- Individual
- Primary specialty
- Public Health & General Preventive Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 196713 (NY)
Specialties & taxonomies
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 tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Divalproex Sodium | 21 |
| Lactulose | 18 |
| Chlorpromazine Hcl | 16 |
| Metformin Hcl | 16 |
| Famotidine | 15 |
| Levothyroxine Sodium | 14 |
| Budesonide | 13 |
| Diazepam | 13 |
| Omeprazole | 13 |
| Metoclopramide Hcl | 12 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-16
- Last updated
- 2019-07-30
Frequently asked questions
- What is John Silvernail's NPI number?
- John Silvernail's National Provider Identifier (NPI) is 1356385462, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Silvernail's specialty?
- John Silvernail is listed in the NPPES registry with a primary specialty of Public Health & General Preventive Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Silvernail located?
- John Silvernail's practice location on file with NPPES is Pitt County Health Department, Greenville, NC 27834-7503.
- What is John Silvernail's phone number?
- The practice phone number listed in the NPPES registry for John Silvernail is (252) 902-2300.
- Does John Silvernail accept Medicare?
- John Silvernail is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Silvernail's NPI active?
- Yes — John Silvernail's NPI (1356385462) is active in the NPPES registry as of the last update on 2019-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.