Karen Timmermans, PA-C
NPI 1477534659 · Physician Assistant · Grand Rapids, MI
Karen Timmermans, PA-C is a Physician Assistant provider in Grand Rapids, MI (NPI 1477534659).
Provider details
- NPI number
- 1477534659
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 4601003685 (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 tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$114 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-07
- Last updated
- 2017-05-19
Frequently asked questions
- What is Karen Timmermans's NPI number?
- Karen Timmermans's National Provider Identifier (NPI) is 1477534659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Timmermans's specialty?
- Karen Timmermans is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Timmermans located?
- Karen Timmermans's practice location on file with NPPES is 2900 Bradford St Ne, Grand Rapids, MI 49525-6427.
- What is Karen Timmermans's phone number?
- The practice phone number listed in the NPPES registry for Karen Timmermans is (616) 885-5000.
- Is Karen Timmermans's NPI active?
- Yes — Karen Timmermans's NPI (1477534659) is active in the NPPES registry as of the last update on 2017-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.