Nicole Grennell, FNP-C
NPI 1699322909 · Nurse Practitioner · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicole Grennell, FNP-C is a Nurse Practitioner provider in Ann Arbor, MI (NPI 1699322909).
Provider details
- NPI number
- 1699322909
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 4704297246 (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 tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$168 across 3 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
Additional practice locations (1)
- 401 W Greenlawn AveLansing, MI 48910-2819Phone: (517) 975-6000
Registry dates
- Enumerated
- 2019-08-21
- Last updated
- 2023-04-07
- Certified
- 2023-04-07
Frequently asked questions
- What is Nicole Grennell's NPI number?
- Nicole Grennell's National Provider Identifier (NPI) is 1699322909, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicole Grennell's specialty?
- Nicole Grennell is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nicole Grennell located?
- Nicole Grennell's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is Nicole Grennell's phone number?
- The practice phone number listed in the NPPES registry for Nicole Grennell is (734) 936-4000.
- Does Nicole Grennell accept Medicare?
- Nicole Grennell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicole Grennell's NPI active?
- Yes — Nicole Grennell's NPI (1699322909) is active in the NPPES registry as of the last update on 2023-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.