NPPES file of Aug 9, 2026

Steli Pankova Kostov, FNP

Family Nurse Practitioner · Phoenix, AZ

Steli Pankova Kostov, FNP is a family nurse practitioner with a practice address in Phoenix, Arizona, and NPI 1083901268, issued on Jul 7, 2011. Check the license (Arizona AP4142, as entered in NPPES) with the Arizona 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
1083901268
Name
Steli Pankova Kostov
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP4142 AZ
Self-reported in NPPES; status is on the state search
Practice location
4530 E Muirwood Dr, Phoenix, AZ 85048
Phone
(480) 961-2303
Enumerated
Jul 7, 2011
Record last updated
Aug 24, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20111004000214); accepts Medicare assignment
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 4530 E Muirwood Dr

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

  1. Faraz Alam, MDInternal Medicine Physician1336100478
  2. Basel Alebrahim, M.D.Internal Medicine Physician1205094935
  3. Collins Appiah, MDInternal Medicine Physician1902069768
  4. Vijaya Avija, MDInternal Medicine Physician1659536704
  5. Tanya BegellBehavior Technician1144738246
  6. Tyler BerschelBehavior Technician1285474262

Verify Steli Pankova Kostov in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license AP4142
    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 Arizona 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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4.4 times the Medicare Part D claims of the average family nurse practitioner in 2024

5,726 Medicare Part D claims for 658 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. Steli Kostov5,726
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium402 claims
  2. Levothyroxine Sodium385 claims
  3. Amlodipine Besylate319 claims
  4. Rosuvastatin Calcium259 claims
  5. Lisinopril219 claims
  6. Losartan Potassium219 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.

Industry payments in 2024: $373.58

22 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Steli Kostov$373.58
  2. Specialty average$650.95

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

Bills Medicare through one group practice

  1. Associated Internists OF Ahwatukee PCPhoenix, AZ

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

Steli Pankova Kostov among 5,933 family nurse practitioner records in Arizona

Steli Pankova Kostov, FNP is one of 5,933 family nurse practitioner records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 18% of them.

  • NPI issued2011 · 18% of these records are older, 80% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2011 · median 2019 among the 3,510 with a school on file
  • Record last updated2011 · 38% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,242 family nurse practitioner records list a practice address in Phoenix

They are 1,242 of the 31,399 NPPES records with a practice address in Phoenix, and 5,933 family nurse practitioner records in Arizona.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Kelly Armenta, FNP-CPhoenix, AZ 850481275872848
  2. Angela Bribiescas, FNP-CPhoenix, AZ 850481134435506
  3. Holly Campbell, FNP-BCPhoenix, AZ 850481225359946
  4. Vicky Davis, FNPPhoenix, AZ 850481134171572
  5. Teresa Gaither, FNPPhoenix, AZ 850481568835890
  6. Leigh Gressley, MSN/FNP-BCPhoenix, AZ 850481063665875
  7. Susan Hawrylkiw, FNPPhoenix, AZ 850481457427445
  8. Jenny Khan, FNPPhoenix, AZ 850481487824322

Common questions

What is Steli Pankova Kostov, FNP's NPI number?

Steli Pankova Kostov, FNP's National Provider Identifier (NPI) is 1083901268, issued on Jul 7, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Steli Pankova Kostov, FNP located?

The NPPES record lists a practice address at 4530 E Muirwood Dr, Phoenix, AZ, 85048. Phone: (480) 961-2303. Providers update this record themselves, so call before visiting.

How can I verify Steli Pankova Kostov, FNP's license?

NPPES lists Arizona license number AP4142, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Steli Pankova Kostov, FNP prescribe under Medicare Part D?

In 2024, Steli Pankova Kostov, FNP had 5,726 Medicare Part D claims for 658 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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.