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DR. MARK A UNDERWOOD MD
NPI 1265414460
Pediatrics - Neonatal-Perinatal Medicine in Spokane, WA

Active since November 15, 2005
101 W 8TH AVE, SPOKANE, WA 99204(509) 474-3131 Get Directions Write a Review

NPPES record last updated: February 5, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Mark A Underwood Md NPPES

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

DR. MARK A UNDERWOOD MD (NPI 1265414460) is an individual neonatal-perinatal medicine provider in Spokane, Washington, licensed in California (A45353) and active in the NPI registry since November 2005. He maintains a secondary practice location in Sacramento.

NPPES Registry Identity

NPI1265414460
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameDR. MARK A UNDERWOODCredential: MD
Location Address101 W 8TH AVESpokane, WA 99204-2307
Mailing Address15915 W Silver Lake RdMedical Lake, WA 99022-9599 · (530) 867-6234 · Fax (916) 456-4490
Phone(509) 474-3131
Sole ProprietorYes
Enumeration DateNovember 15, 2005
Last NPPES UpdateFebruary 5, 2021
NPPES CertifiedFebruary 5, 2021
✔ NPI 1265414460 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
Licenses✔ Licensed in CA · A45353✔ Licensed in WA · MD61106174
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
101 W 8TH AVE, Spokane, WA 99204
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Secondary Practice Location 1

Location 12315 Stockton Blvd, NICUSacramento, CA 95817-2201 · Phone (916) 703-3050 · Fax (916) 703-3055

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

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.

CHELSEA POSENJAK
Nurse Anesthetist, Certified Registered
101 W 8TH AVE
SPOKANE, WA 99204
Spokane County (509) 474-3131
CAITLIN KLAMPER MD
Psychiatry & Neurology (Psychiatry)
101 W 8TH AVE
SPOKANE, WA 99204
Spokane County (509) 474-4744
DR. SARAH N PETERSON MD
Radiology (Diagnostic Radiology)
101 W 8TH AVE
SPOKANE, WA 99204
Spokane County (509) 474-3020
MICHAEL GROSS MD
Anesthesiology
101 W 8TH AVE
SPOKANE, WA 99204
Spokane County (509) 474-3181
LAURA DARLENE DEWALD DO
Internal Medicine
101 W 8TH AVE
SPOKANE, WA 99204
Spokane County (509) 626-9900
PAUL C THORNE MD
Surgery (Pediatric Surgery)
101 W 8TH AVE, STE 100
SPOKANE, WA 99204
Spokane County (509) 474-5445
DR. BROOKS THOMAS LASELLE M.D.
Emergency Medicine
101 W 8TH AVE
SPOKANE, WA 99204
Spokane County (253) 217-3832
MR. MICHAEL CLIFFORD BLANCH R.PH.
Pharmacist
101 W 8TH AVE
SPOKANE, WA 99204
Spokane County (509) 474-3088

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 Mark Underwood's NPI number?

The NPI number for Mark Underwood is 1265414460. It was assigned to this individual provider in the NPPES registry on November 15, 2005.

Where is Mark Underwood located?

Mark Underwood practices at 101 W 8th Ave, Spokane, WA 99204. The listed phone number is (509) 474-3131.

What is Mark Underwood's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

What insurance does Mark Underwood accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Mark Underwood as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Underwood was last updated on February 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.