Ilyas Sahin
NPI 1174936835 · Medical Oncology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ilyas Sahin is a Medical Oncology Physician provider in Boston, MA (NPI 1174936835).
Provider details
- NPI number
- 1174936835
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD16442 (RI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Hematology (Internal Medicine) Physician207RH0000X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
189 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 | 79 | $175 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $124 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 36 | $77 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 12 | $129 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 12 | $79 |
Typical Medicare-allowed amounts for these services range $77–$175 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prochlorperazine Maleate | 55 | 32 |
| Oxycodone Hcl | 33 | 24 |
| Lenvatinib Mesylatebrand: Lenvima | 29 | — |
| Ondansetronbrand: Ondansetron Odt | 19 | — |
| Apixabanbrand: Eliquis | 19 | — |
| Morphine Sulfatebrand: Morphine Sulfate Er | 18 | — |
| Dexamethasone |
Practice location
Mailing address
Additional practice locations (2)
- 1600 Sw Archer RdGainesville, FL 32610-4923Phone: (352) 273-7832
- 75 Francis StBoston, MA 02115-6106Phone: (617) 724-4000Fax: (617) 724-8685
Registry dates
- Enumerated
- 2014-06-10
- Last updated
- 2026-01-22
- Certified
- 2026-01-22
Frequently asked questions
- What is Ilyas Sahin's NPI number?
- Ilyas Sahin's National Provider Identifier (NPI) is 1174936835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ilyas Sahin's specialty?
- Ilyas Sahin is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ilyas Sahin located?
- Ilyas Sahin's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Ilyas Sahin's phone number?
- The practice phone number listed in the NPPES registry for Ilyas Sahin is (617) 726-2000.
- Does Ilyas Sahin accept Medicare?
- Ilyas Sahin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ilyas Sahin's NPI active?
- Yes — Ilyas Sahin's NPI (1174936835) is active in the NPPES registry as of the last update on 2026-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.