What is Mark Quion's NPI number?

Mark Quion's National Provider Identifier (NPI) is 1598696536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Quion's specialty?

Mark Quion is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is Mark Quion located?

Mark Quion's practice location on file with NPPES is 300 68th St Se, Grand Rapids, MI 49548-6927.

What is Mark Quion's phone number?

The practice phone number listed in the NPPES registry for Mark Quion is (800) 678-5500.

Is Mark Quion's NPI active?

Yes — Mark Quion's NPI (1598696536) is active in the NPPES registry as of the last update on 2026-05-28.

IndividualActive

Mark Quion

NPI 1598696536 · Psychiatry Physician · Grand Rapids, MI

Mark Quion is a Psychiatry Physician provider in Grand Rapids, MI (NPI 1598696536).

Provider details

NPI number: 1598696536
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Sex: Male
Sole proprietor: No
License: 4351055901 (MI)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 4351055901 (MI)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(52/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in 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

300 68th St Se

Grand Rapids, MI 49548-6927

Phone: (800) 678-5500

Street-level locationGet directions

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Mailing address