Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John R. Melnick, M. D. & Associates

Organization Internal Medicine Physician · NPI 1427139351

John R. Melnick, M. D. & Associates is an Internal Medicine Physician in Gaithersburg, Maryland. Licensed in Maryland. Registered with an NPI since 2006.

Licensed in
MD
In the registry since
2006

Practice location Address checks out

911 Russell Ave
Gaithersburg, MD 20879-3266
Phone: (301) 258-0944
Fax: (301) 258-8804
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0019294 (MD)

Record details

NPI number1427139351
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Melnick — Owner/Manager · (301) 258-0944
NPI enumeratedOctober 18, 2006
Last updated in NPPESMarch 3, 2008
Mailing address911 Russell Ave, Gaithersburg, MD 20879-3266

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