Margaret Cook, MD
NPI 1932174299 · Nephrology Physician · Austin, TX
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Cook, MD is a Nephrology Physician provider in Austin, TX (NPI 1932174299).
Provider details
- NPI number
- 1932174299
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- K6827 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,495 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 227 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 189 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 164 | $91 |
| Kidney Function Blood Test Panel80069 | 163 | $8 |
| Parathormone (parathyroid Hormone) Level83970 | 156 | $40 |
| Uric Acid Level, Blood84550 | 145 | $4 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dapagliflozin Propanediolbrand: Farxiga | 123 | 28 |
| Carvedilol | 121 | 34 |
| Allopurinol | 117 | 33 |
| Calcitriol | 91 | 17 |
| Amlodipine Besylate | 91 | 29 |
| Lisinopril | 77 | 29 |
| Losartan Potassium | 62 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,100 across 52 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
- 2006-02-21
- Last updated
- 2022-01-21
Frequently asked questions
- What is Margaret Cook's NPI number?
- Margaret Cook's National Provider Identifier (NPI) is 1932174299, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Cook's specialty?
- Margaret Cook is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Cook located?
- Margaret Cook's practice location on file with NPPES is 12221 N Mopac Expy, Austin, TX 78758-2401.
- What is Margaret Cook's phone number?
- The practice phone number listed in the NPPES registry for Margaret Cook is (512) 901-4010.
- Does Margaret Cook accept Medicare?
- Margaret Cook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Cook's NPI active?
- Yes — Margaret Cook's NPI (1932174299) is active in the NPPES registry as of the last update on 2022-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.