Robert J. Kosiorek, MD
Pediatrics Physician · Gilbert, AZ
Robert J. Kosiorek, MD is a pediatrics physician with a practice address in Gilbert, Arizona, and NPI 1780731414, issued on Jan 4, 2007. Check the license (Arizona 20136, as entered in NPPES) on the Arizona Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Robert J. Kosiorek
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 20136 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 2451 E Baseline RD, Gilbert, AZ 85234
- Phone
- (480) 507-2199
- Enumerated
- Jan 4, 2007
- Record last updated
- Jul 9, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (480) 507-0677
- Medicaid ID
- 053504 AZ
- Entity
- Type 1 · individual
Also registered at 2451 E Baseline RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Coffey, DPMPodiatrist1801894654
- Michael Fairfax, D.O.Rheumatology Physician1518068063
- Pamela Guard, L.AC.Acupuncturist1932654274
- Vicki Jensen, CCC/SLP-LSpeech-Language Pathologist1366481269
- Lauren KotheSpeech-Language Pathologist1699151050
- Thai Vy Lam, BCBABehavior Analyst1780280396
Verify Robert J. Kosiorek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 20136Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Pediatrics Physician providers in Arizona
There are 1,309 pediatrics physician records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other pediatrics physician records in Arizona
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- Alexa Aaronson, MDTucson, AZ1427793652
- Maria Abad, MDCasa Grande, AZ1295713741
- Sally Abdelmalek, MDMarana, AZ1952896839
- Yasmeen Abdulrahman, MDTucson, AZ1487322590
- Nicole Abdy, M.D.Tucson, AZ1669670634
- Joselita Abeleda, MDSierra Vista, AZ1346276482
- Yara Abu SalahTucson, AZ1952235061
- Stuart Adair, M.DSacaton, AZ1568497287
- Mary Adam, M.D., PHDNogales, AZ1508191016
Common questions
What is Robert J. Kosiorek, MD's NPI number?
Robert J. Kosiorek, MD's National Provider Identifier (NPI) is 1780731414, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robert J. Kosiorek, MD located?
The NPPES record lists a practice address at 2451 E Baseline RD, Gilbert, AZ, 85234. Phone: (480) 507-2199. Providers update this record themselves, so call before visiting.
How can I verify Robert J. Kosiorek, MD's license?
NPPES lists Arizona license number 20136, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.