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RACHEL HARTMANN CASAC-ADVANCED
NPI 1770474074
Counselor - Addiction (Substance Use Disorder) in Massapequa Park, NY

Active since July 14, 2025PECOS EnrolledAccepts Medicare Assignment
5100 SUNRISE HWY FL 2, MASSAPEQUA PARK, NY 11762(631) 696-4357 Get Directions Write a Review

NPPES record last updated: July 14, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Rachel Hartmann Casac-advanced NPPES

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

RACHEL HARTMANN CASAC-ADVANCED (NPI 1770474074) is an individual addiction (substance use disorder) provider in Massapequa Park, New York and active in the NPI registry since July 2025. The provider is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1770474074
Entity TypeIndividual
Primary Taxonomy101YA0400X
Provider Legal NameRACHEL HARTMANNCredential: CASAC-ADVANCED
Location Address5100 SUNRISE HWY FL 2Massapequa Park, NY 11762-2935
Mailing Address1377 Motor Pkwy Ste 102Islandia, NY 11749-5249
Phone(631) 696-4357
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateJuly 14, 2025
NPPES CertifiedJuly 14, 2025
✔ NPI 1770474074 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
5100 SUNRISE HWY FL 2, Massapequa Park, NY 11762
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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

Rachel Hartmann Casac-advanced 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 ID4284136235
PECOS Enrollment IDI20250908003318
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 Reassignment

Medicare enrollment records show Rachel Hartmann reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cs Medical Associates, P.C.
1.5 mi
Counselor
64 BROADWAY
Amityville, NY 11701
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Cs Medical Associates, PC
  • 81 clinicians in this Medicare group
NPI 1790653236 (631) 696-4357

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 20

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

MICHELLE HEALY
Counselor (Addiction (Substance Use Disorder))
5100 SUNRISE HWY FL 2
MASSAPEQUA PARK, NY 11762
Nassau County (631) 696-4357
SIOBHAN EARECKSON
Peer Specialist
5100 SUNRISE HWY FL 2
MASSAPEQUA PARK, NY 11762
Nassau County (631) 696-4357
ROBERT BLAIR PMHNP, RN
Nurse Practitioner (Psychiatric/Mental Health)
5100 SUNRISE HWY FL 2
MASSAPEQUA PARK, NY 11762
Nassau County (516) 715-1356
BARBARA MARAIA-RENTZ
Counselor (Addiction (Substance Use Disorder))
5100 SUNRISE HWY FL 2
MASSAPEQUA PARK, NY 11762
Nassau County (631) 696-4357
LUCAS WRIGHT
Counselor (Addiction (Substance Use Disorder))
5100 SUNRISE HWY FL 2
MASSAPEQUA PARK, NY 11762
Nassau County (631) 696-4357
ALISON CASTALDY
Peer Specialist
5100 SUNRISE HWY FL 2
MASSAPEQUA PARK, NY 11762
Nassau County (631) 696-4357
BRITTANY TYNAN LMHC
Counselor (Mental Health)
5100 SUNRISE HWY FL 2
MASSAPEQUA PARK, NY 11762
Nassau County (631) 696-4357
LAUREN WILLIAMS
Counselor (Addiction (Substance Use Disorder))
5100 SUNRISE HWY FL 2
MASSAPEQUA PARK, NY 11762
Nassau County (631) 696-4357

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 Rachel Hartmann's NPI number?

The NPI number for Rachel Hartmann is 1770474074. It was assigned to this individual provider in the NPPES registry on July 14, 2025.

Where is Rachel Hartmann located?

Rachel Hartmann practices at 5100 Sunrise Hwy Fl 2, Massapequa Park, NY 11762. The listed phone number is (631) 696-4357.

What is Rachel Hartmann's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Is Rachel Hartmann enrolled in Medicare?

Yes. Rachel Hartmann 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 Rachel Hartmann's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Hartmann reassigns Medicare benefits to Cs Medical Associates, P.C. (Amityville, 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 Rachel Hartmann'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 Rachel Hartmann was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.