What is Charles Marshak's NPI number?

Charles Marshak's National Provider Identifier (NPI) is 1386302735, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Charles Marshak's specialty?

Charles Marshak is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).

Where is Charles Marshak located?

Charles Marshak's practice location on file with NPPES is 376 E Apple Ave, Muskegon, MI 49442-3466.

What is Charles Marshak's phone number?

The practice phone number listed in the NPPES registry for Charles Marshak is (231) 724-1111.

Is Charles Marshak's NPI active?

Yes — Charles Marshak's NPI (1386302735) is active in the NPPES registry as of the last update on 2021-12-03.

IndividualActive

Charles Marshak

NPI 1386302735 · Case Manager/Care Coordinator · Muskegon, MI

Charles Marshak is a Case Manager/Care Coordinator provider in Muskegon, MI (NPI 1386302735).

Provider details

NPI number: 1386302735
Entity type: Individual
Primary specialty: Case Manager/Care CoordinatorOther Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Case Manager/Care CoordinatorPrimary171M00000X
Other Service Providers

Profile Score

Established profile(55/100 index)

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

Registry tenure38% of score
4 yrs in NPPES registry
Profile completeness38% of score
83% 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

376 E Apple Ave

Muskegon, MI 49442-3466

Phone: (231) 724-1111

Street-level locationGet directions

More MI providers

Mailing address