NPPES file of Aug 9, 2026

Anthony Koo, MD

Anesthesiology Physician · Phoenix, AZ

Anthony Koo, MD is an anesthesiology physician with a practice address in Phoenix, Arizona, and NPI 1982897146, issued on Aug 21, 2007. Check the license (Arizona 46139, 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
1982897146
Name
Anthony Koo
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
46139 AZ
55599-20 WI
Self-reported in NPPES; status is on the state search
Practice location
1919 E Thomas RD, Phoenix, AZ 85016
Phone
(602) 933-1000
Enumerated
Aug 21, 2007
Record last updated
Apr 2, 2026
Medicare enrollment
Enrolled (PECOS I20110810000279); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2007
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 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 Anthony Koo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 46139
    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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2 hospitals and group practices

  1. Mchs Hospitals IncMarshfield, WI
  2. 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).

Anthony Koo among 1,473 anesthesiology physician records in Arizona

Anthony Koo, 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 2007, is newer than 56% of them.

  • NPI issued2007 · 56% of these records are older, 37% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2007 · median 2003 among the 984 with a school on file
  • Record last updated2026 · 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.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Robert Branche, MD.Phoenix, AZ 850161184712192
  2. Susan Braun, MDPhoenix, AZ 850161023261799
  3. David Eicher, MDPhoenix, AZ 850161558453043
  4. Elisabeth Graf-Shafa, M.D.Phoenix, AZ 850161831207828
  5. Robert Greenberger, MDPhoenix, AZ 850161780623363
  6. Kathleen Guarnieri, MDPhoenix, AZ 850161942270756
  7. Narasimhan JagannathanPhoenix, AZ 850161285729988
  8. Phillip Moss, MDPhoenix, AZ 850161801863345

Common questions

What is Anthony Koo, MD's NPI number?

Anthony Koo, MD's National Provider Identifier (NPI) is 1982897146, issued on Aug 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Anthony Koo, 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 Anthony Koo, MD's license?

NPPES lists Arizona license number 46139, 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.

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.