NPPES file of Aug 9, 2026

Kevin Paul Kolostyak, MD

Specialist · La Jolla, CA

Kevin Paul Kolostyak, MD is a specialist with a practice address in La Jolla, California, and NPI 1518062454, issued on Sep 14, 2006. Check the license (California A91624, as entered in NPPES) with the California 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
1518062454
Name
Kevin Paul Kolostyak
Credential
MD
Primary taxonomy
Specialist 174400000X
License number
A91624 CA
Self-reported in NPPES; status is on the state search
Practice location
9850 Genesee Ave, La Jolla, CA 92037
Phone
(858) 453-3842
Enumerated
Sep 14, 2006
Record last updated
Mar 7, 2023
Medicare enrollment
Enrolled (PECOS I20110301000612); 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 9850 Genesee Ave

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

  1. Oyewale Abidoye, M.D.Hematology & Oncology Physician1790841815
  2. Mark Adrian, M.D.Internal Medicine Physician1003879438
  3. Amy Andrews, PA-CPhysician Assistant1518019488
  4. Lee Atwood, FNP-BCFamily Nurse Practitioner1346785250
  5. Azar Bastanfar, CERTIFIED NURSE PRACNurse Practitioner1265459184
  6. Lucas BaumgartnerClinical Exercise Physiologist1679908651

Verify Kevin Paul Kolostyak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license A91624
    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 California license search

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72% fewer Medicare Part D claims than the average specialist in 2024

386 Medicare Part D claims for 72 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Kevin Kolostyak386
  2. Specialty average1,380

Most prescribed

  1. Levetiracetam45 claims
  2. Glatopa25 claims
  3. Lamotrigine21 claims
  4. Pyridostigmine Bromide21 claims
  5. Azathioprine20 claims
  6. Carbidopa-Levodopa20 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.

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF WashingtonPuyallup, WA

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

Kevin Paul Kolostyak among 5,749 specialist records in California

Kevin Paul Kolostyak, MD is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated2001 · median 1989 among the 1,075 with a school on file
  • Record last updated2023 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California.

The 8 specialist records with the nearest ZIP codes

  1. Hans Anderson, M.D.La Jolla, CA 920371902880396
  2. R Boughton, M.D.La Jolla, CA 920371881699205
  3. Kulreet Chaudhary, MDLa Jolla, CA 920371174561021
  4. Ronald Harris, RONALD HARRIS, M.D.La Jolla, CA 920371457461436
  5. Adrian Jaffer, M.DLa Jolla, CA 920371366476152
  6. Colleen KernahanLa Jolla, CA 920371154432409
  7. Janet Kim, M.DLa Jolla, CA 920371154355857
  8. Alexander Krakovsky, M.D.La Jolla, CA 920371023096443

Common questions

What is Kevin Paul Kolostyak, MD's NPI number?

Kevin Paul Kolostyak, MD's National Provider Identifier (NPI) is 1518062454, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kevin Paul Kolostyak, MD located?

The NPPES record lists a practice address at 9850 Genesee Ave, La Jolla, CA, 92037. Phone: (858) 453-3842. Providers update this record themselves, so call before visiting.

How can I verify Kevin Paul Kolostyak, MD's license?

NPPES lists California license number A91624, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Kevin Paul Kolostyak, MD prescribe under Medicare Part D?

In 2024, Kevin Paul Kolostyak, MD had 386 Medicare Part D claims for 72 beneficiaries; the average among specialist prescribers was 1,380. 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.