Michelle Koester, WHNP
NPI 1881962843 · Nurse Practitioner · Saint Peters, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Koester, WHNP is a Nurse Practitioner provider in Saint Peters, MO (NPI 1881962843).
Provider details
- NPI number
- 1881962843
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- WHNP
- Sex
- Female
- Sole proprietor
- No
- License
- 2000147926 (MO)
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
14 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Valacyclovir Hclbrand: Valacyclovir | 15 |
| Estradiol | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$95 across 1 record (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)
- 4901 Forest Park AveDept Obgyn, Ste 341Saint Louis, MO 63108-1495Phone: (314) 454-7882Fax: (314) 454-5167
Registry dates
- Enumerated
- 2011-12-06
- Last updated
- 2026-01-29
- Certified
- 2026-01-29
Frequently asked questions
- What is Michelle Koester's NPI number?
- Michelle Koester's National Provider Identifier (NPI) is 1881962843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Koester's specialty?
- Michelle Koester is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michelle Koester located?
- Michelle Koester's practice location on file with NPPES is 201 Bjc Saint Peters Dr Ste 200, Saint Peters, MO 63376-3386.
- What is Michelle Koester's phone number?
- The practice phone number listed in the NPPES registry for Michelle Koester is (636) 916-9615.
- Does Michelle Koester accept Medicare?
- Michelle Koester is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Koester's NPI active?
- Yes — Michelle Koester's NPI (1881962843) is active in the NPPES registry as of the last update on 2026-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.