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Joel Notkin, MD
NPI 1538105770 · Nephrology Physician · Caldwell, NJ
Joel Notkin, MD is a Nephrology Physician provider in Caldwell, NJ (NPI 1538105770).
Provider details
- NPI number
- 1538105770
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MA017989 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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.
Practice location
526 Bloomfield Ave
Caldwell, NJ 07006-5564
Phone: (973) 226-0500
Fax: (973) 226-7221
Approximate (ZIP-level) locationGet directions
Mailing address
908 Holly Ln
Cedar Grove, NJ 07009-3209
Registry dates
- Enumerated
- 2006-06-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joel Notkin's NPI number?
- Joel Notkin's National Provider Identifier (NPI) is 1538105770, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joel Notkin's specialty?
- Joel Notkin is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Joel Notkin located?
- Joel Notkin's practice location on file with NPPES is 526 Bloomfield Ave, Caldwell, NJ 07006-5564.
- What is Joel Notkin's phone number?
- The practice phone number listed in the NPPES registry for Joel Notkin is (973) 226-0500.
- Is Joel Notkin's NPI active?
- Yes — Joel Notkin's NPI (1538105770) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.