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DR. NEWTON SEIDEN M.D.
NPI 1164519674
Anesthesiology - Pediatric Anesthesiology in Madera, CA

Active since October 06, 2006PECOS Enrolled
9300 VALLEY CHILDRENS PL # SC43, MADERA, CA 93636(559) 353-5700(559) 353-5708 Get Directions Write a Review

NPPES record last updated: May 28, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 28, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. Newton Seiden M.d. NPPES

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

DR. NEWTON SEIDEN M.D. (NPI 1164519674) is an individual pediatric anesthesiology provider in Madera, California, licensed in California (G68506) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1164519674
Entity TypeIndividualMale
Primary Taxonomy207LP3000X
Provider Legal NameDR. NEWTON SEIDENCredential: M.D.
Location Address9300 VALLEY CHILDRENS PL # SC43Madera, CA 93636-8761
Mailing Address9300 Valley Childrens Pl # Sc05Madera, CA 93636-8761 · (559) 353-5700 · Fax (559) 353-5708
Phone(559) 353-5700
Fax(559) 353-5708
Sole ProprietorYes
Enumeration DateOctober 6, 2006
Last NPPES UpdateMay 28, 20262 updates tracked since enumeration
NPPES CertifiedMay 28, 2026
✔ NPI 1164519674 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Pediatric AnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207LP3000X
License✔ Licensed in CA · G68506
Definition
An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy.
Also ListedAnesthesiologyTaxonomy 207L00000X · License G68506 (CA)
9300 VALLEY CHILDRENS PL # SC43, Madera, CA 93636
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Other Identifiers 1

MedicaidZZZ71868ZCA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Newton 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 Newton Seiden reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pediatric Anesthesia Associates Medical Group Inc
Same address
Anesthesiology
9300 VALLEY CHILDRENS PL
Madera, CA 93636
  • Reassigned Medicare billing, California enrollment
  • 55 clinicians in this Medicare group
NPI 1558588871 (559) 353-3000

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 93636 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
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 Newton Seiden's NPI number?

The NPI number for Newton Seiden is 1164519674. It was assigned to this individual provider in the NPPES registry on October 6, 2006.

Where is Newton Seiden located?

Newton Seiden practices at 9300 Valley Childrens Pl # Sc43, Madera, CA 93636. The listed phone number is (559) 353-5700.

What is Newton Seiden's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.

Is Newton Seiden enrolled in Medicare?

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

Which organization bills Medicare for Newton Seiden's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Newton Seiden reassigns Medicare benefits to Pediatric Anesthesia Associates Medical Group Inc (Madera, CA). 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 Newton 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 Newton Seiden was last updated on May 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.