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MRS. MARIA MIDDENDORF MS, LCSW
NPI 1184933707
Early Intervention Provider Agency in Centereach, NY

Active since September 30, 2010PECOS EnrolledAccepts Medicare Assignment
5 VINE ST, CENTEREACH, NY 11720(631) 648-8206(631) 648-8206 Get Directions Write a Review

NPPES record last updated: January 8, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mrs. Maria Middendorf Ms, Lcsw NPPES

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

MRS. MARIA MIDDENDORF MS, LCSW (NPI 1184933707) is an individual early intervention provider agency provider in Centereach, New York and active in the NPI registry since September 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1184933707
Entity TypeIndividualFemale
Primary Taxonomy252Y00000X
Provider Legal NameMRS. MARIA MIDDENDORFCredential: MS, LCSW
Location Address5 VINE STCentereach, NY 11720-1720
Mailing Address5 Vine StCentereach, NY 11720-1720 · (631) 648-8206 · Fax (631) 648-8206
Phone(631) 648-8206
Fax(631) 648-8206
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateSeptember 30, 2010
Last NPPES UpdateJanuary 8, 2016
✔ NPI 1184933707 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEarly Intervention Provider AgencyAgencies
Taxonomy Code252Y00000X
Definition
Early intervention services are an effective way to address the needs of infants and toddlers who have developmental delays or disabilities. The services are made available through a federal law known as the Individuals with Disabilities Education Act (IDEA). IDEA provides states and territories with specific requirements for providing early intervention services to infants and toddlers with special needs. In turn, each state and territory develops its own policies for carrying out IDEA and its requirements. Broadly speaking, early intervention services are special services for eligible infants and toddlers and their families. These services are designed to identify and meet children's needs in five developmental areas. These areas are: physical development, cognitive development, communication, social or emotional development, and adaptive development.
Also ListedSocial WorkerTaxonomy 104100000X · License 080393-1 (NY)
5 VINE ST, Centereach, NY 11720
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Other Identifiers 1

MedicaidW224351NY

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

Mrs. Maria Middendorf Ms, Lcsw 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.

PECOS PAC ID42442691
PECOS Enrollment IDI20140414000167
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 Maria Middendorf reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Service League, Inc.
15 mi
Community/Behavioral Health
790 PARK AVE
Huntington, NY 11743
  • Reassigned Medicare billing, New York enrollment
  • 122 clinicians in this Medicare group
NPI 1528093242 (631) 427-3700
Visiting Counselors Of New York, Lcsw, PLLC
17 mi
Clinical
900 WALT WHITMAN RD STE LL1
Melville, NY 11747
  • Reassigned Medicare billing, New York enrollment
  • 45 clinicians in this Medicare group
NPI 1669906889 (516) 698-5511

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
364 services23 patients

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 Maria Middendorf's NPI number?

The NPI number for Maria Middendorf is 1184933707. It was assigned to this individual provider in the NPPES registry on September 30, 2010.

Where is Maria Middendorf located?

Maria Middendorf practices at 5 Vine St, Centereach, NY 11720. The listed phone number is (631) 648-8206.

What is Maria Middendorf's specialty?

The primary specialty registered for this NPI is Early Intervention Provider Agency with taxonomy code 252Y00000X.

Is Maria Middendorf enrolled in Medicare?

Yes. Maria Middendorf 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 organizations bill Medicare for Maria Middendorf's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Middendorf reassigns Medicare benefits to 2 organizations: Family Service League, Inc. (Huntington, NY) and Visiting Counselors Of New York, Lcsw, PLLC (Melville, NY). 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 Maria Middendorf'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 Maria Middendorf was last updated on January 8, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.