Steven Cajamarca, MD
NPI 1598496796 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Cajamarca, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1598496796).
Provider details
- NPI number
- 1598496796
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 294769 (MA)
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
4 yrs in NPPES registry
- Profile completeness38% of score
100% 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-06-20
- Last updated
- 2023-06-29
- Certified
- 2022-07-22
Frequently asked questions
- What is Steven Cajamarca's NPI number?
- Steven Cajamarca's National Provider Identifier (NPI) is 1598496796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Cajamarca's specialty?
- Steven Cajamarca is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Cajamarca located?
- Steven Cajamarca's practice location on file with NPPES is 820 Harrison Ave Bldg 4th, Boston, MA 02118-2905.
- What is Steven Cajamarca's phone number?
- The practice phone number listed in the NPPES registry for Steven Cajamarca is (617) 638-6604.
- Does Steven Cajamarca accept Medicare?
- Steven Cajamarca is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Cajamarca's NPI active?
- Yes — Steven Cajamarca's NPI (1598496796) is active in the NPPES registry as of the last update on 2023-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.