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MR. ALEX JAMES STARK-VALDEZ FNP
NPI 1477161420
Nurse Practitioner - Family in Florissant, MO

Active since July 15, 2020PECOS Enrolled
79.29/100
CMS Quality Rating
272 MAYFAIR PLAZA SHOPPING CTR, FLORISSANT, MO 63033(314) 859-1234(314) 859-1235 Get Directions Write a Review

NPPES record last updated: April 18, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: May 9, 2024, Apr 4, 2022, Jul 15, 2020 (3 updates tracked since 2020).

About Mr. Alex James Stark-valdez Fnp NPPES

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

MR. ALEX JAMES STARK-VALDEZ FNP (NPI 1477161420) is an individual family provider in Florissant, Missouri, licensed in Missouri (2020011688) and active in the NPI registry since July 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477161420
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameMR. ALEX JAMES STARK-VALDEZCredential: FNP
Location Address272 MAYFAIR PLAZA SHOPPING CTRFlorissant, MO 63033-8009
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 859-1234 · Fax (314) 859-1235
Phone(314) 859-1234
Fax(314) 859-1235
Sole ProprietorNo
Enumeration DateJuly 15, 2020
Last NPPES UpdateApril 18, 20253 updates tracked since enumeration
NPPES CertifiedMarch 21, 2022
✔ NPI 1477161420 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MO · 2020011688
272 MAYFAIR PLAZA SHOPPING CTR, Florissant, MO 63033
Open in Google Maps ↗

Other Identifiers 1

Medicaid420106651MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Alex James Stark-valdez Fnp 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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
29 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63033 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.29/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.46
Promoting Interoperability100
Improvement Activities40
Cost59.51

Other Providers at the Same Location NPPES 3

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

MR. THOMAS FANCIS GOWEN JR. RN
Registered Nurse (Nephrology)
272 MAYFAIR PLAZA SHOPPING CTR
FLORISSANT, MO 63033
St. Louis County (314) 859-1234
WASHINGTON UNIVERSITY
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
272 MAYFAIR PLAZA SHOPPING CTR
FLORISSANT, MO 63033
St. Louis County (314) 859-1234
DVA WASHINGTON UNIVERSITY HEALTHCARE OF GREATER ST LOUIS LLC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
272 MAYFAIR PLAZA SHOPPING CTR
FLORISSANT, MO 63033
St. Louis County (314) 859-1234

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 Alex Stark-valdez's NPI number?

The NPI number for Alex Stark-valdez is 1477161420. It was assigned to this individual provider in the NPPES registry on July 15, 2020.

Where is Alex Stark-valdez located?

Alex Stark-valdez practices at 272 Mayfair Plaza Shopping Ctr, Florissant, MO 63033. The listed phone number is (314) 859-1234.

What is Alex Stark-valdez's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Alex Stark-valdez enrolled in Medicare?

Yes. Alex Stark-valdez is registered in the Medicare PECOS enrollment system.

What insurance does Alex Stark-valdez accept?

Health plans from Cox HealthPlans list Alex Stark-valdez 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 Alex Stark-valdez was last updated on April 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.