DR. FEMINIA CASTRO MAC MD
NPI 1942386966
Pediatrics - Adolescent Medicine in Newark, NJ

Q: What is Feminia Mac's NPI number?

The NPI number for Feminia Mac is 1942386966. It was assigned to this individual provider in the NPPES registry on October 31, 2006.

Q: What is Feminia Mac's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.

Q: When was this NPI record last updated?

The NPPES record for Feminia Mac was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since October 31, 2006PECOS Enrolled

18 FERRY ST, NEWARK, NJ 07105(973) 589-3566(973) 589-1707 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Feminia Castro Mac Md NPPES

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

DR. FEMINIA CASTRO MAC MD (NPI 1942386966) is an individual adolescent medicine provider in Newark, New Jersey, licensed in New Jersey (28330) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942386966

Entity TypeIndividualFemale

Primary Taxonomy2080A0000X

Provider Legal NameDR. FEMINIA CASTRO MACCredential: MD

Location Address18 FERRY STNewark, NJ 07105-1436

Mailing Address18 Ferry StNewark, NJ 07105-1436 · (973) 589-3566 · Fax (973) 589-1707

Phone(973) 589-3566

Fax(973) 589-1707

Sole ProprietorYes

Enumeration DateOctober 31, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1942386966 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Adolescent MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2080A0000X

License✔ Licensed in NJ · 28330

Definition

A pediatrician who specializes in adolescent medicine is a multi-disciplinary healthcare specialist trained in the unique physical, psychological and social characteristics of adolescents, their healthcare problems and needs.

18 FERRY ST, Newark, NJ 07105

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Other Identifiers 3

Other222153220NJ · Tax Id Number

Other28330NJ · Medical License

Medicaid3921905NJ

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Feminia Castro Mac Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Feminia Mac reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

City Of Newark

0.8 mi

Community Health

110 WILLIAM ST
Newark, NJ 07102

Reassigned Medicare billing, New Jersey enrollment
24 clinicians in this Medicare group

NPI 1356561278 (973) 733-7558

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 2

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

EAGLE HEALTH SERVICES, LLC

Nurse Practitioner (Psychiatric/Mental Health)

18 FERRY ST
NEWARK, NJ 07105

Essex County (732) 255-2252

DR. DOUGLAS T DOWNEY D.M.D.

Dentist

18 FERRY ST
NEWARK, NJ 07105

Essex County (973) 690-5136

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 Feminia Mac's NPI number?

The NPI number for Feminia Mac is 1942386966. It was assigned to this individual provider in the NPPES registry on October 31, 2006.

Where is Feminia Mac located?

Feminia Mac practices at 18 Ferry St, Newark, NJ 07105. The listed phone number is (973) 589-3566.

What is Feminia Mac's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.

Is Feminia Mac enrolled in Medicare?

Yes. Feminia Mac is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Feminia Mac's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Feminia Mac reassigns Medicare benefits to City Of Newark (Newark, NJ). 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 Feminia Mac'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 Feminia Mac was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.