Harlan Mellk, M. D.
NPI 1326043647 · Nephrology Physician · Millburn, NJ
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harlan Mellk, M. D. is a Nephrology Physician provider in Millburn, NJ (NPI 1326043647).
Provider details
- NPI number
- 1326043647
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25MA02105300 (NJ)
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
21 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-14
- Last updated
- 2009-02-25
Frequently asked questions
- What is Harlan Mellk's NPI number?
- Harlan Mellk's National Provider Identifier (NPI) is 1326043647, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harlan Mellk's specialty?
- Harlan Mellk is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Harlan Mellk located?
- Harlan Mellk's practice location on file with NPPES is 127 Millburn Ave, Millburn, NJ 07041-1917.
- What is Harlan Mellk's phone number?
- The practice phone number listed in the NPPES registry for Harlan Mellk is (973) 379-3838.
- Does Harlan Mellk accept Medicare?
- Harlan Mellk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harlan Mellk's NPI active?
- Yes — Harlan Mellk's NPI (1326043647) is active in the NPPES registry as of the last update on 2009-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.