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JACOB JOSEF KANTROWITZ MD
NPI 1871055749
Internal Medicine in Boston, MA

Active since April 01, 2019PECOS EnrolledAccepts Medicare Assignment
2100 DORCHESTER AVE, BOSTON, MA 02124(617) 506-4000 Get Directions Write a Review

NPPES record last updated: August 12, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 12, 2022, Jul 28, 2021, Jul 23, 2019 and 1 more (4 updates tracked since 2019).

About Jacob Josef Kantrowitz Md NPPES

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

JACOB JOSEF KANTROWITZ MD (NPI 1871055749) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (285073) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Tufts Medical Center, and maintains a secondary practice location in Warwick.

NPPES Registry Identity

NPI1871055749
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJACOB JOSEF KANTROWITZCredential: MD
Location Address2100 DORCHESTER AVEBoston, MA 02124-5666
Mailing Address2100 Dorchester AveBoston, MA 02124-5666 · (617) 506-4000
Phone(617) 506-4000
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2019
Enumeration DateApril 1, 2019
Last NPPES UpdateAugust 12, 20224 updates tracked since enumeration
NPPES CertifiedAugust 12, 2022
✔ NPI 1871055749 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MA · 285073✔ Licensed in RI · LP04711
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 285073 (MA)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
2100 DORCHESTER AVE, Boston, MA 02124
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Other Names 1

Former Name (1)Jacob Josef Kantrowitz-sirotkin

Secondary Practice Location 1

Location 1455 Toll Gate RdWarwick, RI 02886-2770 · Phone (401) 737-7010 ext. 35640

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jacob Josef Kantrowitz Md 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 ID8123354917
PECOS Enrollment IDI20220824001114
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.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
92 services65 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
87 services44 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
47 services47 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Tufts Medical Center

Acute Care Hospitals · Boston, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220116
Location800 Washington StreetBoston, MA 02111 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02124 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
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.

ELENA ROTFELD
Pharmacist
2100 DORCHESTER AVE, SEMC GPU AT CARNEY HOSPITAL
DORCHESTER, MA 02124
Suffolk County (617) 506-4536
DR. DANA MARIE HORNBEAK M.D., M.P.H.
Internal Medicine
2100 DORCHESTER AVE, CARITAS CARNEY HOSPITAL, 7 SOUTH
DORCHESTER, MA 02124
Suffolk County (617) 506-2726
CARITAS CARNEY HOSPITAL
Durable Medical Equipment & Medical Supplies
2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124
Suffolk County (617) 296-4000
CARITAS CARNEY HOSPITAL
Long Term Care Hospital
2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124
Suffolk County (617) 296-4000
BRECKON DANIEL PAV M.D.
Emergency Medicine
2100 DORCHESTER AVE
DORCHESTER, MA 02124
Suffolk County (617) 296-4000
RAMNINDER SINGH NAGRA MD
Internal Medicine
2100 DORCHESTER AVE
DORCHESTER, MA 02124
Suffolk County (617) 506-2726
DONNA L SPRINGS MD
Emergency Medicine
2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124
Suffolk County (617) 296-4000
MUSTAFA M SYED MD
Psychiatry & Neurology (Psychiatry)
2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124
Suffolk County (617) 296-4000

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 Jacob Kantrowitz's NPI number?

The NPI number for Jacob Kantrowitz is 1871055749. It was assigned to this individual provider in the NPPES registry on April 1, 2019. The provider is also known as Jacob Josef Kantrowitz-Sirotkin.

Where is Jacob Kantrowitz located?

Jacob Kantrowitz practices at 2100 Dorchester Ave, Boston, MA 02124. The listed phone number is (617) 506-4000.

What is Jacob Kantrowitz's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Jacob Kantrowitz enrolled in Medicare?

Yes. Jacob Kantrowitz 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.

Is Jacob Kantrowitz affiliated with any hospitals?

According to CMS data, Jacob Kantrowitz is affiliated with Tufts Medical Center.

When was this NPI record last updated?

The NPPES record for Jacob Kantrowitz was last updated on August 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.