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MR. ALEXANDER CARL MESSER LCSW
NPI 1083071021
Social Worker - Clinical in New York, NY

Active since January 21, 2016PECOS Enrolled
1301 5TH AVE, NEW YORK, NY 10029(212) 426-3400 Get Directions Write a Review

NPPES record last updated: February 26, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 26, 2020, Jan 21, 2016 (2 updates tracked since 2016).

About Mr. Alexander Carl Messer Lcsw NPPES

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

MR. ALEXANDER CARL MESSER LCSW (NPI 1083071021) is an individual clinical provider in New York, New York, licensed in New York (088583) and active in the NPI registry since January 2016. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083071021
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMR. ALEXANDER CARL MESSERCredential: LCSW
Location Address1301 5TH AVENew York, NY 10029-3119
Mailing Address1301 5th AveNew York, NY 10029-3119 · (212) 426-3400
Phone(212) 426-3400
Sole ProprietorYes
Enumeration DateJanuary 21, 2016
Last NPPES UpdateFebruary 26, 20202 updates tracked since enumeration
✔ NPI 1083071021 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in NY · 088583
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
1301 5TH AVE, New York, NY 10029
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Maintenance Organization of Florida, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Alexander Carl Messer Lcsw 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.

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
$0.00 typical visit price
range $65.69 – $198.19
Typical copayment $0.00 (range $16.42 – $49.54)
Most-billed visit code NA
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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JENNIFER TESTA
Social Worker
1301 5TH AVE
NEW YORK, NY 10029
New York County (212) 426-3440
MRS. KESINA M GRAY-GRAHAM
Student in an Organized Health Care Education/Training Program
1301 5TH AVE
NEW YORK, NY 10029
New York County (212) 426-3400
ANGELA DJOUMBAYE
Community/Behavioral Health
1301 5TH AVE
NEW YORK, NY 10029
New York County (212) 426-3400
LIBBY ERLBAUM-RUMELT LMSW
Social Worker
1301 5TH AVE
NEW YORK, NY 10029
New York County (212) 426-3400
LUCETTE TULP
Social Worker (School)
1301 5TH AVE
NEW YORK, NY 10029
New York County (212) 426-3400
MICHELE BARTON
Student in an Organized Health Care Education/Training Program
1301 5TH AVE
NEW YORK, NY 10029
New York County (212) 426-3400
MRS. CAROLA E CENTENO B.S
Case Manager/Care Coordinator
1301 5TH AVE, NORTHSIDE CENTER FOR CHILD DEVELOPMENT
NEW YORK, NY 10029
New York County (212) 426-3400
PAMELA MOCK
Student in an Organized Health Care Education/Training Program
1301 5TH AVE
NEW YORK, NY 10029
New York County (212) 426-3400

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 Alexander Messer's NPI number?

The NPI number for Alexander Messer is 1083071021. It was assigned to this individual provider in the NPPES registry on January 21, 2016.

Where is Alexander Messer located?

Alexander Messer practices at 1301 5th Ave, New York, NY 10029. The listed phone number is (212) 426-3400.

What is Alexander Messer's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Alexander Messer enrolled in Medicare?

Yes. Alexander Messer is registered in the Medicare PECOS enrollment system.

What insurance does Alexander Messer accept?

Health plans from Oscar Health Maintenance Organization of Florida and UnitedHealthcare list Alexander Messer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alexander Messer was last updated on February 26, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.