Songul Onder, M.D.
NPI 1588875694 · Nephrology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Songul Onder, M.D. is a Nephrology Physician provider in Baltimore, MD (NPI 1588875694).
Provider details
- NPI number
- 1588875694
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D94700 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
962 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 320 | $86 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 161 | $129 |
| Hemodialysis Procedure With Physician Evaluation90935 | 119 | $77 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 106 | $151 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 85 | $383 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 158 | 43 |
| Carvedilol | 92 | 22 |
| Furosemide | 73 | 23 |
| Sevelamer Carbonate | 53 | 15 |
| Amlodipine Besylate | 40 | 15 |
| Nifedipinebrand: Nifedipine Er | 37 | 17 |
| Losartan Potassium | 32 | 11 |
| Atorvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-24
- Last updated
- 2022-10-25
- Certified
- 2022-10-25
Frequently asked questions
- What is Songul Onder's NPI number?
- Songul Onder's National Provider Identifier (NPI) is 1588875694, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Songul Onder's specialty?
- Songul Onder is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Songul Onder located?
- Songul Onder's practice location on file with NPPES is 22 S Greene St, Baltimore, MD 21201-1590.
- What is Songul Onder's phone number?
- The practice phone number listed in the NPPES registry for Songul Onder is (410) 328-5720.
- Does Songul Onder accept Medicare?
- Songul Onder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Songul Onder's NPI active?
- Yes — Songul Onder's NPI (1588875694) is active in the NPPES registry as of the last update on 2022-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.