NPPES file of Aug 9, 2026

Erica Alexander Kostmayer, CRNP

Pediatric Nurse Practitioner · Gulfport, MS

Erica Alexander Kostmayer, CRNP is a pediatric nurse practitioner with a practice address in Gulfport, Mississippi, and NPI 1306422464, issued on Mar 19, 2021. Check the license (Mississippi 904935, as entered in NPPES) with the Mississippi 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306422464
Name
Erica Alexander Kostmayer
Credential
CRNP
Primary taxonomy
Pediatric Nurse Practitioner 363LP0200X
License numbers
904935 MS
1-156402 AL
Self-reported in NPPES; status is on the state search
Practice location
401 Cowan RD Unit B, Gulfport, MS 39507
Phone
(228) 202-1144
Enumerated
Mar 19, 2021
Record last updated
Dec 10, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Erica Alexander Kostmayer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
    Search for license 904935
    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 Mississippi license search

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Industry payments in 2024: $114.55

5 payments; by number, the most common kind was food and beverage; the largest payer was Ironwood Pharmaceuticals, Inc. The 7,169 providers of this specialty with any payment received $330.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Erica Kostmayer$114.55
  2. Specialty average$330.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Erica Alexander Kostmayer among 125 pediatric nurse practitioner records in Mississippi

Erica Alexander Kostmayer, CRNP is one of 125 pediatric nurse practitioner records with a practice address in Mississippi. 51% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 66% of them.

  • NPI issued2021 · 66% of these records are older, 26% newer
  • In a Medicare fileYes · 51% of these records are
  • In the CMS Doctors and Clinicians fileNo · 10% of these records are
  • Record last updated2021 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0200X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Nurse Practitioner providers in Mississippi

There are 125 pediatric nurse practitioner records in Mississippi.

The 8 pediatric nurse practitioner records with the nearest ZIP codes

  1. Danielle Barber, PNPGulfport, MS 395071982382784
  2. Madelena Campbell, RN, CPNP-BC, CPNGulfport, MS 395031720368855
  3. Patricia Hall, C.P.N.P.Gulfport, MS 395031902847163
  4. Amanda LevensGulfport, MS 395031386057602
  5. Angela Ostrowski, CPNP-PCGulfport, MS 395031841932548
  6. Heather Theisen, ARNPGulfport, MS 395031750879003
  7. Erin Blanchette, CPNPBay St Louis, MS 395201912265943
  8. Katherine Stockstill, CPNP-PCBay Saint Louis, MS 395201558828566

Common questions

What is Erica Alexander Kostmayer, CRNP's NPI number?

Erica Alexander Kostmayer, CRNP's National Provider Identifier (NPI) is 1306422464, issued on Mar 19, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Erica Alexander Kostmayer, CRNP located?

The NPPES record lists a practice address at 401 Cowan RD Unit B, Gulfport, MS, 39507. Phone: (228) 202-1144. Providers update this record themselves, so call before visiting.

How can I verify Erica Alexander Kostmayer, CRNP's license?

NPPES lists Mississippi license number 904935, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity only.

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.