Linda Hammer, NP
NPI 1770370223 · Primary Care Nurse Practitioner · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Linda Hammer, NP is a Primary Care Nurse Practitioner provider in Grand Rapids, MI (NPI 1770370223).
Provider details
- NPI number
- 1770370223
- Entity type
- Individual
- Primary specialty
- Primary Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 4704254405 (MI)
Specialties & taxonomies
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
1 yr 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
- 2025-04-21
- Last updated
- 2025-05-10
- Certified
- 2025-05-10
Frequently asked questions
- What is Linda Hammer's NPI number?
- Linda Hammer's National Provider Identifier (NPI) is 1770370223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Linda Hammer's specialty?
- Linda Hammer is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Linda Hammer located?
- Linda Hammer's practice location on file with NPPES is 1551 Martin Luther King Jr St Se, Grand Rapids, MI 49506-8203.
- What is Linda Hammer's phone number?
- The practice phone number listed in the NPPES registry for Linda Hammer is (616) 452-1568.
- Does Linda Hammer accept Medicare?
- Linda Hammer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Linda Hammer's NPI active?
- Yes — Linda Hammer's NPI (1770370223) is active in the NPPES registry as of the last update on 2025-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.