MS. GRISSEL HERNANDEZ APRN, NP-P, BC
NPI 1619095759
Nurse Practitioner - Psychiatric/Mental Health in New York, NY

Active since March 27, 2007PECOS EnrolledAccepts Medicare Assignment
1111 AMSTERDAM AVE, SCRYMSER 3RD FLOOR, NEW YORK, NY 10025(212) 523-6500(212) 523-5677 Get Directions Write a Review

NPPES record last updated: September 26, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Ms. Grissel Hernandez Aprn, Np-p, Bc NPPES

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

MS. GRISSEL HERNANDEZ APRN, NP-P, BC (NPI 1619095759) is an individual psychiatric/mental health provider in New York, New York, licensed in New York (400930) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS and is a graduate of New York University School Of Medicine (2005).

NPPES Registry Identity

NPI1619095759
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMS. GRISSEL HERNANDEZCredential: APRN, NP-P, BC
Location Address1111 AMSTERDAM AVE, SCRYMSER 3RD FLOORNew York, NY 10025-1716
Mailing Address1111 Amsterdam Ave, Scrymser 3rd FloorNew York, NY 10025-1716 · (212) 523-6500 · Fax (212) 523-5677
Fax(212) 523-5677
Sole ProprietorNo
Medical School CMSNew York University School Of MedicineGraduated 2005
Enumeration DateMarch 27, 2007
Last NPPES UpdateSeptember 26, 2023
NPPES CertifiedSeptember 26, 2023
✔ NPI 1619095759 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
Licenses✔ Licensed in NY · 400930✔ Licensed in FL · APRN11028826
1111 AMSTERDAM AVE, New York, NY 10025

Other Identifiers 1

Medicaid03052559NY

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. Grissel Hernandez Aprn, Np-p, Bc 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 ID8527289149
PECOS Enrollment IDI20141024000887
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

3

Medicare enrollment records show Grissel Hernandez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatry
134 N 4TH ST
Brooklyn, NY 11249
  • Reassigned Medicare billing, Florida enrollment
  • Medicare enrollment name: Valera Medical PA
  • 14 clinicians in this Medicare group
Psychiatry
134 N 4TH ST
Brooklyn, NY 11249
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Valera Medical PC
  • 315 clinicians in this Medicare group
Mental Health
66 W FLAGLER ST STE 900
Miami, FL 33130
  • Reassigned Medicare billing, New York enrollment
  • 867 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10025 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
$102.04 typical visit price
range $65.69 – $198.19
Typical copayment $25.51 (range $16.42 – $49.54)
Most-billed visit code 99203
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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.

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.

Dentist (Oral and Maxillofacial Surgery)
1111 AMSTERDAM AVE
NEW YORK, NY 10025
Emergency Medicine
1111 AMSTERDAM AVE
NEW YORK, NY 10025
Emergency Medicine
1111 AMSTERDAM AVE
NEW YORK, NY 10025
Hospitalist
1111 AMSTERDAM AVE
NEW YORK, NY 10025
Dietitian, Registered
1111 AMSTERDAM AVE
NEW YORK, NY 10025
Internal Medicine (Nephrology)
1111 AMSTERDAM AVE, MINTURN ROOM 205
NEW YORK, NY 10025
Physician Assistant
1111 AMSTERDAM AVE, ORTHO DEPT. CLARK 7
NEW YORK, NY 10025
Nurse Practitioner (Adult Health)
1111 AMSTERDAM AVE
NEW YORK, NY 10025

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 Grissel Hernandez's NPI number?

The NPI number for Grissel Hernandez is 1619095759. It was assigned to this individual provider in the NPPES registry on March 27, 2007.

Where is Grissel Hernandez located?

Grissel Hernandez practices at 1111 Amsterdam Ave Scrymser 3rd Floor, New York, NY 10025. The listed phone number is (212) 523-6500.

What is Grissel Hernandez's specialty?

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

Is Grissel Hernandez enrolled in Medicare?

Yes. Grissel Hernandez 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 Grissel Hernandez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grissel Hernandez reassigns Medicare benefits to 3 organizations: Valera Medical, P.A. (Brooklyn, NY), Valera Medical, P.C. (Brooklyn, NY) and Grow Healthcare Group PA (Miami, FL). 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 Grissel Hernandez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Grissel Hernandez accept?

Health plans from Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company), Oscar Health, Oscar Health Maintenance Organization of Florida and UnitedHealthcare list Grissel Hernandez 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 Grissel Hernandez was last updated on September 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.