IndividualActive
Stefan Schmertz, PHD
NPI 1841587847 · Clinical Psychologist · Boston, MA
Stefan Schmertz, PHD is a Clinical Psychologist provider in Boston, MA (NPI 1841587847).
Provider details
- NPI number
- 1841587847
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 9456 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
Massachusetts General Hospital
55 Fruit St.
Boston, MA 02114
Phone: (617) 726-2000
Approximate (ZIP-level) locationGet directions
Mailing address
Massachusetts General Hospital
Boston, MA 02114
Registry dates
- Enumerated
- 2011-06-29
- Last updated
- 2012-01-05
Frequently asked questions
- What is Stefan Schmertz's NPI number?
- Stefan Schmertz's National Provider Identifier (NPI) is 1841587847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefan Schmertz's specialty?
- Stefan Schmertz is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Stefan Schmertz located?
- Stefan Schmertz's practice location on file with NPPES is Massachusetts General Hospital, Boston, MA 02114.
- What is Stefan Schmertz's phone number?
- The practice phone number listed in the NPPES registry for Stefan Schmertz is (617) 726-2000.
- Is Stefan Schmertz's NPI active?
- Yes — Stefan Schmertz's NPI (1841587847) is active in the NPPES registry as of the last update on 2012-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.