MS. ELSY E. MARTINEZ LMHC
NPI 1639611163
Counselor - Mental Health in Smithtown, NY
About Ms. Elsy E. Martinez Lmhc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ELSY E. MARTINEZ LMHC (NPI 1639611163) is an individual mental health provider in Smithtown, New York, licensed in New York (006727) and active in the NPI registry since November 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Elsy E. Martinez Lmhc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Elsy Martinez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SMITHTOWN, NY 11787
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 Elsy Martinez's NPI number?
The NPI number for Elsy Martinez is 1639611163. It was assigned to this individual provider in the NPPES registry on November 15, 2016.
Where is Elsy Martinez located?
Elsy Martinez practices at 269 E Main St, Smithtown, NY 11787. The listed phone number is (631) 365-2124.
What is Elsy Martinez's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Elsy Martinez enrolled in Medicare?
Yes. Elsy Martinez is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Elsy Martinez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elsy Martinez reassigns Medicare benefits to North Shore-Lij Medical PC (Great Neck, NY). The 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 Elsy Martinez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elsy Martinez accept?
Health plans from Oscar Health list Elsy Martinez 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 Elsy Martinez was last updated on November 15, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Ms. Elsy E. Martinez, LMHC · NPI 1639611163
Mental Health provider in Smithtown, New York. Individual provider, active in the CMS NPPES registry since November 15, 2016.
## Identity
- **NPI:** 1639611163 (Entity type: Individual)
- **Enumerated:** November 15, 2016
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 006727 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 269 E MAIN ST, Smithtown, NY 11787-2832
- **Phone:** (631) 365-2124
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** November 15, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1639611163) · Data from the CMS NPPES public registry.