NPPES file of Aug 9, 2026

Christina McMahon, CASAC-MASTER

Addiction (Substance Use Disorder) Counselor · Massapequa Park, NY

Christina McMahon, CASAC-MASTER is an addiction (substance use disorder) counselor with a practice address in Massapequa Park, New York, and NPI 1598654618, issued on Jul 2, 2025. Check the license (New York 35120, as entered in NPPES) with the New York board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598654618
Name
Christina McMahon
Credential
CASAC-MASTER
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
35120 NY
Self-reported in NPPES; status is on the state search
Practice location
5100 Sunrise Hwy FL 2, Massapequa Park, NY 11762
Phone
(631) 696-4357
Enumerated
Jul 2, 2025
Record last updated
Jul 2, 2025
Medicare enrollment
Enrolled (PECOS I20250709001201); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest addiction (substance use disorder) counselor records → All 5,180 in New York → Look up another NPI →

Also registered at 5100 Sunrise Hwy FL 2

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Oliviea AmayaMental Health Counselor1851228571
  2. Shantese BaptisteAddiction (Substance Use Disorder) Counselor1891649125
  3. Robert Blair, PMHNP, RNPsychiatric/Mental Health Nurse Practitioner1033896840
  4. Victoria BlighAddiction (Substance Use Disorder) Counselor1750170361
  5. Alison CastaldyPeer Specialist1194679399
  6. Siobhan EarecksonPeer Specialist1013861228

Verify Christina McMahon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 35120    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Christina McMahon among 5,180 addiction (substance use disorder) counselor records in New York

Christina McMahon, CASAC-MASTER is one of 5,180 addiction (substance use disorder) counselor records with a practice address in New York. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 88% of them.

  • NPI issued2025 · 88% of these records are older, 5% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileYes · 1% of these records are
  • Graduated2009 · median 2012 among the 75 with a school on file
  • Record last updated2025 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

16 addiction (substance use disorder) counselor records list a practice address in Massapequa Park

They are 16 of the 352 NPPES records with a practice address in Massapequa Park, and 5,180 addiction (substance use disorder) counselor records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 5,180 in New York → Every provider in Massapequa Park → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Shantese BaptisteMassapequa Park, NY 117621891649125
  2. Victoria BlighMassapequa Park, NY 117621750170361
  3. Maureen FeaslerMassapequa Park, NY 117621508710831
  4. Katrina GiacchinoMassapequa Park, NY 117621487508610
  5. Rachel Hartmann, CASAC-ADVANCEDMassapequa Park, NY 117621770474074
  6. Michelle HealyMassapequa Park, NY 117621003760349
  7. Erica HernandezMassapequa Park, NY 117621720471295
  8. Barbara Maraia-RentzMassapequa Park, NY 117621154275287

Common questions

What is Christina McMahon, CASAC-MASTER's NPI number?

Christina McMahon, CASAC-MASTER's National Provider Identifier (NPI) is 1598654618, issued on Jul 2, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Christina McMahon, CASAC-MASTER located?

The NPPES record lists a practice address at 5100 Sunrise Hwy FL 2, Massapequa Park, NY, 11762. Phone: (631) 696-4357. Providers update this record themselves, so call before visiting.

How can I verify Christina McMahon, CASAC-MASTER's license?

NPPES lists New York license number 35120, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.