John Melnick, M. D.
NPI 1679654651 · Internal Medicine Physician · Gaithersburg, MD
John Melnick, M. D. is a Internal Medicine Physician provider in Gaithersburg, MD (NPI 1679654651).
Provider details
- NPI number
- 1679654651
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0019294 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 243 | 54 |
| Rosuvastatin Calcium | 204 | 54 |
| Metoprolol Succinate | 202 | 45 |
| Atorvastatin Calcium | 196 | 46 |
| Furosemide | 178 | 41 |
| Amlodipine Besylate | 167 | 48 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-18
- Last updated
- 2008-03-03
Frequently asked questions
- What is John Melnick's NPI number?
- John Melnick's National Provider Identifier (NPI) is 1679654651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Melnick's specialty?
- John Melnick is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Melnick located?
- John Melnick's practice location on file with NPPES is 911 Russell Ave, Gaithersburg, MD 20879-3266.
- What is John Melnick's phone number?
- The practice phone number listed in the NPPES registry for John Melnick is (301) 258-0944.
- Is John Melnick's NPI active?
- Yes — John Melnick's NPI (1679654651) is active in the NPPES registry as of the last update on 2008-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.