Deirdre Sawinski, MD
NPI 1891954483 · Nephrology Physician · New York, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deirdre Sawinski, MD is a Nephrology Physician provider in New York, NY (NPI 1891954483).
Provider details
- NPI number
- 1891954483
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD439858 (PA)
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
18 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
774 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 491 | $111 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 253 | $90 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 30 | $200 |
Typical Medicare-allowed amounts for these services range $90–$200 (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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 50 | 19 |
| Nifedipinebrand: Nifedipine Er | 45 | 22 |
| Atorvastatin Calcium | 30 | 14 |
| Atovaquone | 23 | — |
| Amlodipine Besylate | 19 | — |
| Valganciclovir Hcl | 19 | — |
| Famotidine | 18 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,604 across 5 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
- 2008-06-09
- Last updated
- 2021-09-22
- Certified
- 2021-09-22
Frequently asked questions
- What is Deirdre Sawinski's NPI number?
- Deirdre Sawinski's National Provider Identifier (NPI) is 1891954483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deirdre Sawinski's specialty?
- Deirdre Sawinski is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Deirdre Sawinski located?
- Deirdre Sawinski's practice location on file with NPPES is 1300 York Ave, New York, NY 10065-4805.
- What is Deirdre Sawinski's phone number?
- The practice phone number listed in the NPPES registry for Deirdre Sawinski is (212) 746-1194.
- Does Deirdre Sawinski accept Medicare?
- Deirdre Sawinski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deirdre Sawinski's NPI active?
- Yes — Deirdre Sawinski's NPI (1891954483) is active in the NPPES registry as of the last update on 2021-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.