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MARCIA J NACKENSON MD
NPI 1154320174
Pediatrics - Adolescent Medicine in Valhalla, NY

Active since July 20, 2005PECOS Enrolled
503 GRASSLANDS RD, STE. 200, VALHALLA, NY 10595(914) 304-5288(914) 345-1755 Get Directions Write a Review

NPPES record last updated: July 23, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Marcia J Nackenson Md NPPES

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

MARCIA J NACKENSON MD (NPI 1154320174) is an individual adolescent medicine provider in Valhalla, New York, licensed in New York (156197) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1154320174
Entity TypeIndividualFemale
Primary Taxonomy2080A0000X
Provider Legal NameMARCIA J NACKENSONCredential: MD
Location Address503 GRASSLANDS RD, STE. 200Valhalla, NY 10595-1503
Mailing Address503 Grasslands Rd, Ste 200Valhalla, NY 10595-1503 · (914) 304-5288 · Fax (914) 345-1755
Phone(914) 304-5288
Fax(914) 345-1755
Sole ProprietorNo
Enumeration DateJuly 20, 2005
Last NPPES UpdateJuly 23, 2013
✔ NPI 1154320174 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 NY · 156197
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.
503 GRASSLANDS RD, Valhalla, NY 10595
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Other Identifiers 3

Medicaid01026246NY
Medicare UPINA96605NY
Medicare PIN824541NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marcia J Nackenson 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 Marcia Nackenson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Boston Children's Health Physicians, LLP
1.3 mi
Pediatrics
19 SKYLINE DR OFC 1N-D06
Hawthorne, NY 10532
  • Reassigned Medicare billing, New York enrollment
  • 511 clinicians in this Medicare group
NPI 1467454967 (914) 594-2100

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 20

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

POOA BLOOMBERG
Occupational Therapist (Hand)
503 GRASSLANDS RD
VALHALLA, NY 10595
Westchester County (914) 345-9133
MILAGROS TAVERAS
Case Manager/Care Coordinator
503 GRASSLANDS RD
VALHALLA, NY 10595
Westchester County (914) 593-0593
BARBARA JEAN WASSERMAN MA
Specialist
503 GRASSLANDS RD
VALHALLA, NY 10595
Westchester County (914) 593-0593
MS. REGINA S FERRARO MPS
Specialist
503 GRASSLANDS RD
VALHALLA, NY 10595
Westchester County (914) 593-0593
DR. JERRY WISHNER PH.D.
Psychologist
503 GRASSLANDS RD, SUITE 107
VALHALLA, NY 10595
Westchester County (914) 763-1140
GABRIELA AGUIRRE MS IN EDUCATION
Specialist
503 GRASSLANDS RD
VALHALLA, NY 10595
Westchester County (914) 593-0593
MS. KATHARINE GRAMS ANDERSON SLP
Speech-Language Pathologist
503 GRASSLANDS RD
VALHALLA, NY 10595
Westchester County (914) 593-0593
GLENN J BELKIN D.O
Pediatrics (Developmental - Behavioral Pediatrics)
503 GRASSLANDS RD, STE 200
VALHALLA, NY 10595
Westchester County (914) 304-5250

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 Marcia Nackenson's NPI number?

The NPI number for Marcia Nackenson is 1154320174. It was assigned to this individual provider in the NPPES registry on July 20, 2005.

Where is Marcia Nackenson located?

Marcia Nackenson practices at 503 Grasslands Rd Ste. 200, Valhalla, NY 10595. The listed phone number is (914) 304-5288.

What is Marcia Nackenson's specialty?

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

Is Marcia Nackenson enrolled in Medicare?

Yes. Marcia Nackenson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marcia Nackenson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marcia Nackenson reassigns Medicare benefits to Boston Children's Health Physicians, LLP (Hawthorne, 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 Marcia Nackenson'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 Marcia Nackenson was last updated on July 23, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.