NPPES file of Aug 9, 2026

William J. Szewc, MD

Anesthesiology Physician · Phoenix, AZ

William J. Szewc, MD is an anesthesiology physician with a practice address in Phoenix, Arizona, and NPI 1700857935, issued on Jan 27, 2006. Check the license (Arizona 19634, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700857935
Name
William J. Szewc
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
19634 AZ
Self-reported in NPPES; status is on the state search
Practice location
7600 N 16TH St, Phoenix, AZ 85020
Phone
(602) 395-0718
Enumerated
Jan 27, 2006
Record last updated
Aug 13, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(602) 277-8146
Medicaid ID
133538 AZ
Medicare enrollment
Enrolled (PECOS I20120118000244); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 1989
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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8 nearest anesthesiology physician records → All 1,473 in Arizona → Look up another NPI →

Also registered at 7600 N 16TH St

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

  1. Manuel Alafriz, MDAnesthesiology Physician1881669018
  2. George Armendariz, M.D.Anesthesiology Physician1750387783
  3. Conrado Ballecer, M.D.Anesthesiology Physician1235165648
  4. Alex Barkai, MDAnesthesiology Physician1215914858
  5. Barry Berger, MDAnesthesiology Physician1518932540
  6. Dennis Blaha, MDAnesthesiology Physician1033175989

Verify William J. Szewc in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 19634    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
Open 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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Bills Medicare through one group practice

  1. Valley Anesthesiology Consultants IncMesa, AZ

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

William J. Szewc among 1,473 anesthesiology physician records in Arizona

William J. Szewc, MD is one of 1,473 anesthesiology physician records with a practice address in Arizona. 73% 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 44% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1989 · median 2003 among the 984 with a school on file
  • Record last updated2010 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

602 anesthesiology physician records list a practice address in Phoenix

They are 602 of the 31,399 NPPES records with a practice address in Phoenix, and 1,473 anesthesiology physician records in Arizona.

All 1,473 in Arizona → Every provider in Phoenix → Anesthesiology Physician nationwide →

The 8 anesthesiology physician records with the nearest ZIP codes

  1. George Armendariz, M.D.Phoenix, AZ 850201750387783
  2. Alex Barkai, MDPhoenix, AZ 850201215914858
  3. Teresa Edwards, MDPhoenix, AZ 850201114998374
  4. Jose Gozar, M.D.Phoenix, AZ 850201144226911
  5. Toni Harrison, M.D.Phoenix, AZ 850201871599647
  6. Karl Hendrickson, MDPhoenix, AZ 850201477524627
  7. Igor Kravchenko, M.D.Phoenix, AZ 850201669451225
  8. Michael Macabuhay, M.D.Phoenix, AZ 850201841296589

Common questions

What is William J. Szewc, MD's NPI number?

William J. Szewc, MD's National Provider Identifier (NPI) is 1700857935, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William J. Szewc, MD located?

The NPPES record lists a practice address at 7600 N 16TH St, Phoenix, AZ, 85020. Phone: (602) 395-0718. Providers update this record themselves, so call before visiting.

How can I verify William J. Szewc, MD's license?

NPPES lists Arizona license number 19634, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.