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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ERIKA L DEMARCHE PMHNP
NPI 1902093677
Nurse Practitioner - Psychiatric/Mental Health in Clay, NY

Active since September 26, 2007PECOS EnrolledAccepts Medicare Assignment
4746 LYNNVILLE WAY OFC, CLAY, NY 13041(315) 225-4902 Get Directions Write a Review

NPPES record last updated: September 2, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

About Erika L Demarche Pmhnp NPPES

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

ERIKA L DEMARCHE PMHNP (NPI 1902093677) is an individual psychiatric/mental health provider in Clay, New York, licensed in New York (40 401703) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1902093677
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameERIKA L DEMARCHECredential: PMHNP
Location Address4746 LYNNVILLE WAY OFCClay, NY 13041-8990
Mailing Address4746 Lynnville WayClay, NY 13041-8990 · (315) 225-4902
Phone(315) 225-4902
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateSeptember 26, 2007
Last NPPES UpdateSeptember 2, 2026
NPPES CertifiedSeptember 2, 2026
✔ NPI 1902093677 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in NY · 40 401703
Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X
4746 LYNNVILLE WAY OFC, Clay, NY 13041
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Other Names 1

Former Name (1)Erika L Hirschey

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Erika L Demarche Pmhnp 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 ID1557581527
PECOS Enrollment IDI20140926000186
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.

Areas of Expertise CMS Part B claims 3

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.

Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
64 services20 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
53 services19 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
48 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 13041 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
$84.93 typical visit price
range $54.87 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Erika Demarche's NPI number?

The NPI number for Erika Demarche is 1902093677. It was assigned to this individual provider in the NPPES registry on September 26, 2007. The provider is also known as Erika L Hirschey.

Where is Erika Demarche located?

Erika Demarche practices at 4746 Lynnville Way Ofc, Clay, NY 13041. The listed phone number is (315) 225-4902.

What is Erika Demarche's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Erika Demarche enrolled in Medicare?

Yes. Erika Demarche 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.

When was this NPI record last updated?

The NPPES record for Erika Demarche was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days 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.