Jacob Kantrowitz, MD
NPI 1871055749 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jacob Kantrowitz, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1871055749).
Provider details
- NPI number
- 1871055749
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- LP04711 (RI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
417 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) |
|---|---|---|
| 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 | 191 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 92 | $100 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 87 | $145 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 47 | $66 |
Typical Medicare-allowed amounts for these services range $17–$145 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 239 | 58 |
| Amlodipine Besylate | 137 | 31 |
| Lisinopril | 112 | 26 |
| Pravastatin Sodium | 89 | 16 |
| Omeprazole | 86 | 25 |
| Gabapentin | 83 | 21 |
| Apixabanbrand: Eliquis |
Practice location
Mailing address
Additional practice locations (1)
- 455 Toll Gate RdWarwick, RI 02886-2770Phone: (401) 737-7010
Registry dates
- Enumerated
- 2019-04-01
- Last updated
- 2022-08-12
- Certified
- 2022-08-12
Frequently asked questions
- What is Jacob Kantrowitz's NPI number?
- Jacob Kantrowitz's National Provider Identifier (NPI) is 1871055749, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jacob Kantrowitz's specialty?
- Jacob Kantrowitz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jacob Kantrowitz located?
- Jacob Kantrowitz's practice location on file with NPPES is 2100 Dorchester Ave, Boston, MA 02124-5666.
- What is Jacob Kantrowitz's phone number?
- The practice phone number listed in the NPPES registry for Jacob Kantrowitz is (617) 506-4000.
- Does Jacob Kantrowitz accept Medicare?
- Jacob Kantrowitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jacob Kantrowitz's NPI active?
- Yes — Jacob Kantrowitz's NPI (1871055749) is active in the NPPES registry as of the last update on 2022-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.