Joel Maslow, MD
NPI 1659308567 · Infectious Disease Physician · Grand Rapids, MI
Joel Maslow, MD is a Infectious Disease Physician provider in Grand Rapids, MI (NPI 1659308567).
Provider details
- NPI number
- 1659308567
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD034344E (PA)
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-27
- Last updated
- 2012-01-11
Frequently asked questions
- What is Joel Maslow's NPI number?
- Joel Maslow's National Provider Identifier (NPI) is 1659308567, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joel Maslow's specialty?
- Joel Maslow is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Joel Maslow located?
- Joel Maslow's practice location on file with NPPES is 25 Michigan St Ne, Grand Rapids, MI 49503-2515.
- What is Joel Maslow's phone number?
- The practice phone number listed in the NPPES registry for Joel Maslow is (616) 391-3050.
- Is Joel Maslow's NPI active?
- Yes — Joel Maslow's NPI (1659308567) is active in the NPPES registry as of the last update on 2012-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.