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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.

HOWARD SCOTT SEIDEN M.D.
NPI 1043383391
Pediatrics - Pediatric Cardiology in Valhalla, NY

Active since November 16, 2006PECOS Enrolled
100 WOODS RD, VALHALLA, NY 10595(914) 614-4250 Get Directions Write a Review

NPPES record last updated: September 22, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 22, 2026, Sep 17, 2026 (2 updates tracked since 2026).

About Howard Scott Seiden M.d. NPPES

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

HOWARD SCOTT SEIDEN M.D. (NPI 1043383391) is an individual pediatric cardiology provider in Valhalla, New York, licensed in New York (188021) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and maintains 9 additional practice locations.

NPPES Registry Identity

NPI1043383391
Entity TypeIndividualMale
Primary Taxonomy2080P0202X
Provider Legal NameHOWARD SCOTT SEIDENCredential: M.D.
Location Address100 WOODS RDValhalla, NY 10595-1530
Mailing Address400 Columbus Ave Ste 200eValhalla, NY 10595-1392 · (914) 614-4200
Phone(914) 614-4250
Sole ProprietorYes
Enumeration DateNovember 16, 2006
Last NPPES UpdateSeptember 22, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 22, 2026
✔ NPI 1043383391 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
License✔ Licensed in NY · 188021
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
Also ListedPediatricsTaxonomy 208000000X · License 188021 (NY)
100 WOODS RD, Valhalla, NY 10595
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Secondary Practice Locations 9

Location 119 Bradhurst Ave Ste 1400Hawthorne, NY 10532-2140 · Phone (914) 614-4250
Location 2707 E Main StMiddletown, NY 10940-2650 · Phone (914) 614-4250
Location 3266 North St Ste 2BNewburgh, NY 12550-3131 · Phone (914) 614-4250
Location 445 Reade PlPoughkeepsie, NY 12601-3947 · Phone (914) 614-4250
Location 5241 North RdPoughkeepsie, NY 12601-1154 · Phone (914) 614-4250
Location 6212 Crystal Run RdMiddletown, NY 10941-4009 · Phone (914) 614-4250
Location 71 Webster Ave Ste 300Poughkeepsie, NY 12601-1362 · Phone (914) 614-4250
Location 8257 Lafayette Ave Ste 370Suffern, NY 10901-4831 · Phone (914) 614-4250
Location 9255 Lafayette AveSuffern, NY 10901-4812 · Phone (914) 614-4250

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Howard Scott Seiden M.d. 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 Howard Seiden reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Boston Children's Health Physicians, LLP
0.6 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.

MRS. LISA ANN SAUER N.P.
Nurse Practitioner (Neonatal, Critical Care)
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
KAREN FRANCOIS MD
Anesthesiology
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
KIMBERLY WILSON R.D.
Dietitian, Registered
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7664
RADHIKA VOLETI M.D
Internal Medicine
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
FAREENA NAWAZ MD
Internal Medicine
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
AUSTIN B CARPENTER
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-8795
AMRO AGLAN MD
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
HAO WANG MD, PHD
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-6613

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 Howard Seiden's NPI number?

The NPI number for Howard Seiden is 1043383391. It was assigned to this individual provider in the NPPES registry on November 16, 2006.

Where is Howard Seiden located?

Howard Seiden practices at 100 Woods Rd, Valhalla, NY 10595. The listed phone number is (914) 614-4250.

What is Howard Seiden's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Howard Seiden enrolled in Medicare?

Yes. Howard Seiden is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Howard Seiden's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Howard Seiden 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 Howard Seiden'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 Howard Seiden was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 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.