Sydney Dy, M.D.
NPI 1003863267 · Medical Oncology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sydney Dy, M.D. is a Medical Oncology Physician provider in Baltimore, MD (NPI 1003863267).
Provider details
- NPI number
- 1003863267
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D53590 (MD)
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 tenure28% of score
20 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
491 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 152 | $115 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 112 | $90 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 111 | $135 |
| 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'SG2211 | 62 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 20 | $155 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 112 | 39 |
| Levothyroxine Sodium | 89 | 26 |
| Rosuvastatin Calcium | 69 | 19 |
| Amlodipine Besylate | 68 | 21 |
| Losartan Potassium | 59 | 17 |
| Gabapentin | 48 | — |
| Pravastatin Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-30
- Last updated
- 2015-10-12
Frequently asked questions
- What is Sydney Dy's NPI number?
- Sydney Dy's National Provider Identifier (NPI) is 1003863267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sydney Dy's specialty?
- Sydney Dy is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Sydney Dy located?
- Sydney Dy's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Sydney Dy's phone number?
- The practice phone number listed in the NPPES registry for Sydney Dy is (410) 955-9434.
- Does Sydney Dy accept Medicare?
- Sydney Dy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sydney Dy's NPI active?
- Yes — Sydney Dy's NPI (1003863267) is active in the NPPES registry as of the last update on 2015-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.