Cynthia Marsack, CNP
NPI 1518966316 · Nurse Practitioner · Detroit, MI
Cynthia Marsack, CNP is a Nurse Practitioner provider in Detroit, MI (NPI 1518966316).
Provider details
- NPI number
- 1518966316
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- No
- License
- 4704110630 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2005-07-14
- Last updated
- 2023-03-07
Frequently asked questions
- What is Cynthia Marsack's NPI number?
- Cynthia Marsack's National Provider Identifier (NPI) is 1518966316, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Marsack's specialty?
- Cynthia Marsack is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cynthia Marsack located?
- Cynthia Marsack's practice location on file with NPPES is 4100 John R St, Detroit, MI 48201-2013.
- What is Cynthia Marsack's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Marsack is (800) 527-6266.
- Is Cynthia Marsack's NPI active?
- Yes — Cynthia Marsack's NPI (1518966316) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.