John N Campbell MD PC
NPI 1598853608 · Addiction Medicine (Internal Medicine) Physician · Kentwood, MI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John N Campbell MD PC is a Addiction Medicine (Internal Medicine) Physician organization in Kentwood, MI (NPI 1598853608).
Provider details
- NPI number
- 1598853608
- Entity type
- Organization
- Primary specialty
- Addiction Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- John N Campbell MD PC
- Organization subpart
- Yes
- Authorized official
- John Campbell, President(616) 455-9450
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Clinical Medical Laboratory291U00000X
Laboratories
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
Other names (DBA / former)
- Doing business as
- Grand Medical Associates
Registry dates
- Enumerated
- 2006-10-11
- Last updated
- 2025-08-06
- Certified
- 2025-08-06
Frequently asked questions
- What is John N Campbell MD PC's NPI number?
- John N Campbell MD PC's National Provider Identifier (NPI) is 1598853608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John N Campbell MD PC?
- John N Campbell MD PC is classified in the NPPES registry as Addiction Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is John N Campbell MD PC located?
- John N Campbell MD PC's practice location on file with NPPES is 1676 Viewpond Drive Se, Kentwood, MI 49508.
- What is John N Campbell MD PC's phone number?
- The practice phone number listed in the NPPES registry for John N Campbell MD PC is (616) 455-9450.
- Does John N Campbell MD PC accept Medicare?
- John N Campbell MD PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for John N Campbell MD PC?
- The authorized official listed on John N Campbell MD PC's NPPES record is John Campbell, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John N Campbell MD PC's NPI active?
- Yes — John N Campbell MD PC's NPI (1598853608) is active in the NPPES registry as of the last update on 2025-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.