NPPES file of Aug 9, 2026

Alex James Stark-Valdez, FNP

Family Nurse Practitioner · Florissant, MO

Alex James Stark-Valdez, FNP is a family nurse practitioner with a practice address in Florissant, Missouri, and NPI 1477161420, issued on Jul 15, 2020. Check the license (Missouri 2020011688, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477161420
Name
Alex James Stark-Valdez
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
2020011688 MO
Self-reported in NPPES; status is on the state search
Practice location
272 Mayfair Plaza Shopping Ctr, Florissant, MO 63033
Phone
(314) 859-1234
Enumerated
Jul 15, 2020
Record last updated
Apr 18, 2025
Fax
(314) 859-1235
Medicaid ID
420106651 MO
Medicare enrollment
Enrolled (PECOS I20220322002626); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 2019
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 272 Mayfair Plaza Shopping Ctr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Thomas Gowen, RNNephrology Registered Nurse1336897370

Verify Alex James Stark-Valdez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2020011688
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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42% fewer Medicare Part D claims than the average family nurse practitioner in 2024

761 Medicare Part D claims for 101 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Alex Stark-Valdez761
  2. Specialty average1,305

Most prescribed

  1. Sevelamer Carbonate79 claims
  2. Carvedilol68 claims
  3. Amlodipine Besylate58 claims
  4. Hydralazine Hcl46 claims
  5. Losartan Potassium39 claims
  6. Midodrine Hcl31 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score71.5
  2. Costout of 100 · 30%59.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Washington UniversitySt Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alex James Stark-Valdez among 5,226 family nurse practitioner records in Missouri

Alex James Stark-Valdez, FNP is one of 5,226 family nurse practitioner records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 66% of them.

  • NPI issued2020 · 66% of these records are older, 28% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2019 · median 2018 among the 3,339 with a school on file
  • Record last updated2025 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

37 family nurse practitioner records list a practice address in Florissant

They are 37 of the 1,326 NPPES records with a practice address in Florissant, and 5,226 family nurse practitioner records in Missouri.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Delores Calmese, FNPFlorissant, MO 630331477708816
  2. Shayla Curtis, FNP-CFlorissant, MO 630331902413255
  3. Maggie Lewis, FNP-CFlorissant, MO 630331023433745
  4. Donna Naumann, FNPFlorissant, MO 630331538335831
  5. Dawn Patrick, FNPFlorissant, MO 630331609234871
  6. Nicole Phillips, FNPFlorissant, MO 630331023702701
  7. Aleksandr Shoykhet, FNP-CFlorissant, MO 630331407263494
  8. Jeanetta StomerFlorissant, MO 630331609319144

Common questions

What is Alex James Stark-Valdez, FNP's NPI number?

Alex James Stark-Valdez, FNP's National Provider Identifier (NPI) is 1477161420, issued on Jul 15, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Alex James Stark-Valdez, FNP located?

The NPPES record lists a practice address at 272 Mayfair Plaza Shopping Ctr, Florissant, MO, 63033. Phone: (314) 859-1234. Providers update this record themselves, so call before visiting.

How can I verify Alex James Stark-Valdez, FNP's license?

NPPES lists Missouri license number 2020011688, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Alex James Stark-Valdez, FNP prescribe under Medicare Part D?

In 2024, Alex James Stark-Valdez, FNP had 761 Medicare Part D claims for 101 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Alex James Stark-Valdez, FNP's MIPS final score?

The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.