1. Home
  2. Directory
  3. New York
  4. New York New York
  5. Psychiatry Neurology
  6. NPI Profile

DR. MATTHEW KLEIN MD/PHD
NPI 1154774321
Psychiatry & Neurology - Psychiatry in New York, NY

Active since July 22, 2016PECOS Enrolled
1399 PARK AVE # 203, NEW YORK, NY 10029(858) 552-8585 Get Directions Write a Review

NPPES record last updated: December 23, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 23, 2020, Sep 4, 2019 (2 updates tracked since 2019).

About Dr. Matthew Klein Md/phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MATTHEW KLEIN MD/PHD (NPI 1154774321) is an individual psychiatry provider in New York, New York, licensed in New York (307462) and active in the NPI registry since July 2016. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1154774321
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. MATTHEW KLEINCredential: MD/PHD
Location Address1399 PARK AVE # 203New York, NY 10029-4567
Mailing Address1399 Park Ave #203, Box 1230New York, NY 10029
Phone(858) 552-8585
Sole ProprietorNo
Enumeration DateJuly 22, 2016
Last NPPES UpdateDecember 23, 20202 updates tracked since enumeration
NPPES CertifiedDecember 23, 2020
✔ NPI 1154774321 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in NY · 307462✔ Licensed in CA · 1154774321
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1399 PARK AVE # 203, New York, NY 10029
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Matthew Klein Md/phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Matthew Klein reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Icahn School Of Medicine At Mount Sinai
0.3 mi
Addiction Medicine
1425 MADISON AVE
New York, NY 10029
  • Reassigned Medicare billing, New York enrollment
  • 385 clinicians in this Medicare group
NPI 1033482518 (212) 987-3100
Community Research Foundation Inc
2,435 mi
Community/Behavioral Health
545 LAUREL ST
San Diego, CA 92101
  • Reassigned Medicare billing, California enrollment
  • 147 clinicians in this Medicare group
NPI 1225251812 (619) 233-4399

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10029 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$198.19 typical visit price
range $65.69 – $198.19
Typical copayment $49.54 (range $16.42 – $49.54)
Most-billed visit code 99205
Established Patient
$81.44 typical visit price
range $21.20 – $160.66
Typical copayment $20.36 (range $5.30 – $40.16)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Klein's NPI number?

The NPI number for Matthew Klein is 1154774321. It was assigned to this individual provider in the NPPES registry on July 22, 2016.

Where is Matthew Klein located?

Matthew Klein practices at 1399 Park Ave # 203, New York, NY 10029. The listed phone number is (858) 552-8585.

What is Matthew Klein's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Matthew Klein enrolled in Medicare?

Yes. Matthew Klein is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Matthew Klein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Klein reassigns Medicare benefits to 2 organizations: Icahn School Of Medicine At Mount Sinai (New York, NY) and Community Research Foundation Inc (San Diego, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Klein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Matthew Klein was last updated on December 23, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.