Gretchen Brandt, M.D.
NPI 1659465292 · Nephrology Physician · Washington, DC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Brandt, M.D. is a Nephrology Physician provider in Washington, DC (NPI 1659465292).
Provider details
- NPI number
- 1659465292
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD30840 (DC)
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
26 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 26 | $198 |
Typical Medicare-allowed amounts for these services range $198–$198 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 59 | 26 |
| Amlodipine Besylate | 45 | 13 |
| Chlorthalidone | 34 | 12 |
| Empagliflozinbrand: Jardiance | 31 | — |
| Rsvpref3 Antigen/As01e/Pfbrand: Arexvy | 30 | 30 |
| Losartan Potassium | 30 | 13 |
| Prednisone | 26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2021-11-22
- Certified
- 2021-11-22
Frequently asked questions
- What is Gretchen Brandt's NPI number?
- Gretchen Brandt's National Provider Identifier (NPI) is 1659465292, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Brandt's specialty?
- Gretchen Brandt is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Gretchen Brandt located?
- Gretchen Brandt's practice location on file with NPPES is 700 2nd St Ne, Washington, DC 20002-8100.
- What is Gretchen Brandt's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Brandt is (202) 346-3000.
- Does Gretchen Brandt accept Medicare?
- Gretchen Brandt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Brandt's NPI active?
- Yes — Gretchen Brandt's NPI (1659465292) is active in the NPPES registry as of the last update on 2021-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.