Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARK CHESTER PERKOWSKI MD
NPI 1750039186
Pediatrics in Palo Alto, CA

Q: What is Mark Perkowski's NPI number?

The NPI number for Mark Perkowski is 1750039186. It was assigned to this individual provider in the NPPES registry on March 15, 2022.

Q: What is Mark Perkowski's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Perkowski was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 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.

Active since March 15, 2022PECOS Enrolled

453 QUARRY RD # MC5660, PALO ALTO, CA 94304(650) 498-7351 Get Directions Write a Review

NPPES record last updated: July 6, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 6, 2026, May 4, 2023, Feb 28, 2023 (3 updates tracked since 2023).

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About Mark Chester Perkowski Md NPPES

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

MARK CHESTER PERKOWSKI MD (NPI 1750039186) is an individual pediatrics provider in Palo Alto, California, licensed in California (A209715) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1750039186

Entity TypeIndividualMale

Primary Taxonomy208000000X

Provider Legal NameMARK CHESTER PERKOWSKICredential: MD

Location Address453 QUARRY RD # MC5660Palo Alto, CA 94304-1419

Mailing Address453 Quarry Rd # Mc5660Palo Alto, CA 94304-1419 · (650) 498-7351

Phone(650) 498-7351

Sole ProprietorNo

Enumeration DateMarch 15, 2022

Last NPPES UpdateJuly 6, 20263 updates tracked since enumeration

NPPES CertifiedJuly 6, 2026

✔ NPI 1750039186 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

Licenses✔ Licensed in CA · A209715✔ Licensed in IL · 125.081346

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Also ListedPediatrics · Pediatric EndocrinologyTaxonomy 2080P0205X · License A209715 (CA)

453 QUARRY RD # MC5660, Palo Alto, CA 94304

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Chester Perkowski 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94304 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

$106.47 typical visit price

range $70.37 – $206.04

Typical copayment $26.61 (range $17.59 – $51.51)

Most-billed visit code 99203

Established Patient

$121.77 typical visit price

range $23.96 – $169.60

Typical copayment $30.44 (range $5.99 – $42.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

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

SHEILA KRISHNAN DO, MPH

Pediatrics (Pediatric Infectious Diseases)

453 QUARRY RD # MC5660
PALO ALTO, CA 94304

Santa Clara County (650) 723-5682

DR. YOUSEF YEHIA ABDULHAMID ELSAYED ABDULRAHMAN MD

Pediatrics

453 QUARRY RD # MC5660
PALO ALTO, CA 94304

Santa Clara County (650) 736-2005

JENNA DALE REISLER MD

Internal Medicine

453 QUARRY RD # MC5660
PALO ALTO, CA 94304

Santa Clara County (605) 723-4000

JONATHAN TAYLOR COLSTON MD

Student in an Organized Health Care Education/Training Program

453 QUARRY RD # MC5660
PALO ALTO, CA 94304

Santa Clara County (650) 723-5948

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 Perkowski's NPI number?

The NPI number for Mark Perkowski is 1750039186. It was assigned to this individual provider in the NPPES registry on March 15, 2022.

Where is Mark Perkowski located?

Mark Perkowski practices at 453 Quarry Rd # Mc5660, Palo Alto, CA 94304. The listed phone number is (650) 498-7351.

What is Mark Perkowski's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Mark Perkowski enrolled in Medicare?

Yes. Mark Perkowski is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Perkowski was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 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.