IndividualActive
Steven Balk
NPI 1497884779 · Hematology & Oncology Physician · Boston, MA
Steven Balk is a Hematology & Oncology Physician provider in Boston, MA (NPI 1497884779).
Provider details
- NPI number
- 1497884779
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 54561 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
330 Brookline Ave
Boston, MA 02215-5400
Phone: (617) 667-5288
Street-level locationGet directions
Mailing address
3 Brentwood Cir
Needham, MA 02492-1903
Registry dates
- Enumerated
- 2007-03-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Steven Balk's NPI number?
- Steven Balk's National Provider Identifier (NPI) is 1497884779, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Balk's specialty?
- Steven Balk is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Balk located?
- Steven Balk's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215-5400.
- What is Steven Balk's phone number?
- The practice phone number listed in the NPPES registry for Steven Balk is (617) 667-5288.
- Is Steven Balk's NPI active?
- Yes — Steven Balk's NPI (1497884779) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.