Margaret Meier, M.D.
NPI 1659723963 · Nephrology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Meier, M.D. is a Nephrology Physician provider in Saint Louis, MO (NPI 1659723963).
Provider details
- NPI number
- 1659723963
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2016023691 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
880 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 281 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 185 | $99 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 162 | $335 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 80 | $164 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 73 | $112 |
| Hemodialysis Procedure With Physician Evaluation90935 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 207 | 55 |
| Furosemide | 147 | 49 |
| Calcitriol | 99 | 26 |
| Losartan Potassium | 96 | 32 |
| Dapagliflozin Propanediolbrand: Farxiga | 85 | 23 |
| Lisinopril | 82 | 27 |
| Metoprolol Tartrate | 78 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$498 across 23 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
- 2016-07-11
- Last updated
- 2025-10-14
- Certified
- 2025-10-14
Frequently asked questions
- What is Margaret Meier's NPI number?
- Margaret Meier's National Provider Identifier (NPI) is 1659723963, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Meier's specialty?
- Margaret Meier is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Meier located?
- Margaret Meier's practice location on file with NPPES is 450 N New Ballas Rd Ste 204, Saint Louis, MO 63141-6836.
- What is Margaret Meier's phone number?
- The practice phone number listed in the NPPES registry for Margaret Meier is (314) 991-0137.
- Does Margaret Meier accept Medicare?
- Margaret Meier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Meier's NPI active?
- Yes — Margaret Meier's NPI (1659723963) is active in the NPPES registry as of the last update on 2025-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.