Laura Grimmer, MD
NPI 1124314497 · Surgery Physician · Fenton, MO
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Laura Grimmer, MD is a Surgery Physician provider in Fenton, MO (NPI 1124314497).
Provider details
- NPI number
- 1124314497
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2016007205 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
15 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 15 | $125 |
Typical Medicare-allowed amounts for these services range $125–$125 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 54 | 42 |
| Ibuprofen | 40 | 40 |
| Ursodiol | 13 | — |
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.
Practice location
Mailing address
Additional practice locations (2)
- 1035 Bellevue Ave Ste 500Saint Louis, MO 63117-1843Phone: (314) 925-4770
- 4921 Parkview PlSte 8cSaint Louis, MO 63110-1032Phone: (314) 454-8877Fax: (314) 222-6256
Registry dates
- Enumerated
- 2011-06-24
- Last updated
- 2025-10-17
- Certified
- 2025-10-17
Frequently asked questions
- What is Laura Grimmer's NPI number?
- Laura Grimmer's National Provider Identifier (NPI) is 1124314497, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Laura Grimmer's specialty?
- Laura Grimmer is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Laura Grimmer located?
- Laura Grimmer's practice location on file with NPPES is 1011 Bowles Ave Ste 425, Fenton, MO 63026-2384.
- What is Laura Grimmer's phone number?
- The practice phone number listed in the NPPES registry for Laura Grimmer is (636) 496-5080.
- Does Laura Grimmer accept Medicare?
- Laura Grimmer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Laura Grimmer's NPI active?
- Yes — Laura Grimmer's NPI (1124314497) is active in the NPPES registry as of the last update on 2025-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.