Tilak Sundaresan, M.D.
NPI 1114252707 · Hematology & Oncology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tilak Sundaresan, M.D. is a Hematology & Oncology Physician provider in Boston, MA (NPI 1114252707).
Provider details
- NPI number
- 1114252707
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lipase/Protease/Amylasebrand: Zenpep | 18 |
| Ondansetron Hcl | 16 |
| Dexamethasone | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-10-15
- Last updated
- 2022-02-11
Frequently asked questions
- What is Tilak Sundaresan's NPI number?
- Tilak Sundaresan's National Provider Identifier (NPI) is 1114252707, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tilak Sundaresan's specialty?
- Tilak Sundaresan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Tilak Sundaresan located?
- Tilak Sundaresan's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Tilak Sundaresan's phone number?
- The practice phone number listed in the NPPES registry for Tilak Sundaresan is (617) 724-4000.
- Does Tilak Sundaresan accept Medicare?
- Tilak Sundaresan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tilak Sundaresan's NPI active?
- Yes — Tilak Sundaresan's NPI (1114252707) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.