NPPES file of Aug 9, 2026

Amber L. Williamson-Lopez, MD

Pediatric Anesthesiology Physician · Phoenix, AZ

Amber L. Williamson-Lopez, MD is a pediatric anesthesiology physician with a practice address in Phoenix, Arizona, and NPI 1922663087, issued on May 4, 2019. Check the license (Arizona 72733, 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
1922663087
Name
Amber L. Williamson-Lopez
Credential
MD
Primary taxonomy
Pediatric Anesthesiology Physician 207LP3000X
License numbers
72733 AZ
A176467 CA
Self-reported in NPPES; status is on the state search
Practice location
1919 E Thomas RD, Phoenix, AZ 85016
Phone
(602) 933-1000
Enumerated
May 4, 2019
Record last updated
Oct 23, 2024
Medicare enrollment
Enrolled (PECOS I20240823002268); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 2019
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 pediatric anesthesiology physician records → All 54 in Arizona → Look up another NPI →

Also registered at 1919 E Thomas RD

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

  1. Asmaa Aamir, M.D.Diagnostic Radiology Physician1912163791
  2. Madeline Aaron, APRN-RNPPediatric Nurse Practitioner1851134837
  3. Brandon Abbott, D.O., M.P.H.Hospitalist Physician1528350139
  4. Jason AbbottStudent in an Organized Health Care Education/Training Program1184257958
  5. Monica Abd El Nour, MDPediatric Infectious Diseases Physician1760044101
  6. Lindsay Abel, DOStudent in an Organized Health Care Education/Training Program1750222055

Verify Amber L. Williamson-Lopez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 72733    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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One hospital affiliation

  1. Phoenix Children's HospitalPhoenix, AZ · Childrens

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Amber L. Williamson-Lopez among 54 pediatric anesthesiology physician records in Arizona

Amber L. Williamson-Lopez, MD is one of 54 pediatric anesthesiology physician records with a practice address in Arizona. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 89% of them.

  • NPI issued2019 · 89% of these records are older, 2% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2019 · median 2011 among the 44 with a school on file
  • Record last updated2024 · 6% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP3000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Anesthesiology Physician providers in Arizona

There are 54 pediatric anesthesiology physician records in Arizona.

All 54 in Arizona → Every provider in Phoenix → Pediatric Anesthesiology Physician nationwide →

The 8 pediatric anesthesiology physician records with the nearest ZIP codes

  1. Sudha Balan, MDPhoenix, AZ 850161508980160
  2. Steven Beck, MDPhoenix, AZ 850161134199847
  3. Dawn Belvis, M.D.Phoenix, AZ 850161801964168
  4. Peter Brady, MDPhoenix, AZ 850161578543682
  5. David Fujii, MDPhoenix, AZ 850161366412553
  6. Jeffrey Hotz, MDPhoenix, AZ 850161952381667
  7. John Jones, MDPhoenix, AZ 850161861462434
  8. Steven Kallmeyer, M.D.Phoenix, AZ 850161043278518

Common questions

What is Amber L. Williamson-Lopez, MD's NPI number?

Amber L. Williamson-Lopez, MD's National Provider Identifier (NPI) is 1922663087, issued on May 4, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Amber L. Williamson-Lopez, MD located?

The NPPES record lists a practice address at 1919 E Thomas RD, Phoenix, AZ, 85016. Phone: (602) 933-1000. Providers update this record themselves, so call before visiting.

How can I verify Amber L. Williamson-Lopez, MD's license?

NPPES lists Arizona license number 72733, 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.