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DR. TILAK KUMAR SUNDARESAN M.D.
NPI 1114252707
Internal Medicine - Hematology & Oncology in Boston, MA

Active since October 15, 2009PECOS EnrolledAccepts Medicare Assignment
55 FRUIT ST, YAWKEY 7B, BOSTON, MA 02114(617) 724-4000 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Tilak Kumar Sundaresan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. TILAK KUMAR SUNDARESAN M.D. (NPI 1114252707) is an individual hematology & oncology provider in Boston, Massachusetts, licensed in Massachusetts (247203) and active in the NPI registry since October 2009. He is enrolled in Medicare PECOS and is a graduate of Rutgers R W Johnson Medical School (cam/new Bruns/pisc) (2008).

NPPES Registry Identity

NPI1114252707
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. TILAK KUMAR SUNDARESANCredential: M.D.
Location Address55 FRUIT ST, YAWKEY 7BBoston, MA 02114-2621
Mailing Address55 Fruit St, Yawkey 7bBoston, MA 02114-2621 · (617) 724-4000
Phone(617) 724-4000
Sole ProprietorYes
Medical School CMSRutgers R W Johnson Medical School (cam/new Bruns/pisc)Graduated 2008
Enumeration DateOctober 15, 2009
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1114252707 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in MA · 247203
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
55 FRUIT ST, Boston, MA 02114
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Tilak Kumar Sundaresan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1052588027
PECOS Enrollment IDI20170505000281
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Tilak Sundaresan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
2,636 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$189.86 typical visit price
range $63.72 – $189.86
Typical copayment $47.46 (range $15.93 – $47.46)
Most-billed visit code 99205
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STUTI GIRISH SHROFF MD, MBBS
Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2971
NANCY WANG M.D.
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (017) 724-4000
DR. DUSAN HANIDZIAR M.D., PH.D.
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Suffolk County (617) 726-3030
JOHN JOSEPH DANKO DO
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2000
DR. MICHAEL ANDREW LOBRITZ M.D, PH.D.
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Suffolk County (617) 724-9248
MS. KELLY ELISHA TRECARTIN NP
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Suffolk County (617) 726-7400
JAMIE MARIE ALLEN NP
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 724-4410
DR. DHAVAL SANJEEV KOLTE M.B.B.S., PH.D.
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 643-3238

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Tilak Sundaresan's NPI number?

The NPI number for Tilak Sundaresan is 1114252707. It was assigned to this individual provider in the NPPES registry on October 15, 2009.

Where is Tilak Sundaresan located?

Tilak Sundaresan practices at 55 Fruit St Yawkey 7B, Boston, MA 02114. The listed phone number is (617) 724-4000.

What is Tilak Sundaresan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Tilak Sundaresan enrolled in Medicare?

Yes. Tilak Sundaresan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Tilak Sundaresan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tilak Sundaresan reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tilak Sundaresan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Tilak Sundaresan was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.