Jakob Sieker, MD
NPI 1730603473 · Anatomic Pathology & Clinical Pathology Physician · Boston, MA
Jakob Sieker, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Boston, MA (NPI 1730603473).
Provider details
- NPI number
- 1730603473
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- TBD (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2017-08-02
- Last updated
- 2017-08-02
Frequently asked questions
- What is Jakob Sieker's NPI number?
- Jakob Sieker's National Provider Identifier (NPI) is 1730603473, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jakob Sieker's specialty?
- Jakob Sieker is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Jakob Sieker located?
- Jakob Sieker's practice location on file with NPPES is 800 Washington Street, Boston, MA 02111.
- What is Jakob Sieker's phone number?
- The practice phone number listed in the NPPES registry for Jakob Sieker is (617) 636-1112.
- Is Jakob Sieker's NPI active?
- Yes — Jakob Sieker's NPI (1730603473) is active in the NPPES registry as of the last update on 2017-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.