Matthew Klein, MD/PHD
NPI 1154774321 · Psychiatry Physician · New York, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Klein, MD/PHD is a Psychiatry Physician provider in New York, NY (NPI 1154774321).
Provider details
- NPI number
- 1154774321
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD/PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 1154774321 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2016-07-22
- Last updated
- 2020-12-23
- Certified
- 2020-12-23
Frequently asked questions
- What is Matthew Klein's NPI number?
- Matthew Klein's National Provider Identifier (NPI) is 1154774321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Klein's specialty?
- Matthew Klein is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Klein located?
- Matthew Klein's practice location on file with NPPES is 1399 Park Ave # 203, New York, NY 10029-4567.
- What is Matthew Klein's phone number?
- The practice phone number listed in the NPPES registry for Matthew Klein is (858) 552-8585.
- Does Matthew Klein accept Medicare?
- Matthew Klein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Klein's NPI active?
- Yes — Matthew Klein's NPI (1154774321) is active in the NPPES registry as of the last update on 2020-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.