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SETH MEJIAS FNP
NPI 1598445991
Nurse Practitioner - Family in Brooklyn, NY

Active since July 20, 2023PECOS EnrolledAccepts Medicare Assignment
4601 4TH AVE, BROOKLYN, NY 11220(718) 680-8881(718) 680-7880 Get Directions Write a Review

NPPES record last updated: September 27, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 30, 2023, Jul 20, 2023 (2 updates tracked since 2023).

About Seth Mejias Fnp NPPES

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

SETH MEJIAS FNP (NPI 1598445991) is an individual family provider in Brooklyn, New York, licensed in New York (F352526-01) and active in the NPI registry since July 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1598445991
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameSETH MEJIASCredential: FNP
Location Address4601 4TH AVEBrooklyn, NY 11220-1117
Mailing Address2441 31st St # 1125Astoria, NY 11102-1140 · (315) 783-7411
Phone(718) 680-8881
Fax(718) 680-7880
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateJuly 20, 2023
Last NPPES UpdateSeptember 27, 20232 updates tracked since enumeration
NPPES CertifiedSeptember 27, 2023
✔ NPI 1598445991 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in NY · F352526-01
4601 4TH AVE, Brooklyn, NY 11220
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

Seth Mejias Fnp 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 ID4082055546
PECOS Enrollment IDI20240515000683
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 Seth Mejias reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Juniper Medicine PLLC
0.9 mi
Family Medicine
837 59TH ST
Brooklyn, NY 11220
  • Reassigned Medicare billing, New York enrollment
  • 3 clinicians in this Medicare group
NPI 1770243685 (718) 680-8881

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 11220 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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 Seth Mejias's NPI number?

The NPI number for Seth Mejias is 1598445991. It was assigned to this individual provider in the NPPES registry on July 20, 2023.

Where is Seth Mejias located?

Seth Mejias practices at 4601 4th Ave, Brooklyn, NY 11220. The listed phone number is (718) 680-8881.

What is Seth Mejias's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Seth Mejias enrolled in Medicare?

Yes. Seth Mejias 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 Seth Mejias's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Seth Mejias reassigns Medicare benefits to Juniper Medicine PLLC (Brooklyn, 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 Seth Mejias'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 Seth Mejias was last updated on September 27, 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.