NPPES file of Aug 9, 2026

Christopher Chen Wu, M.D

Emergency Medicine Physician · Tucson, AZ

Christopher Chen Wu, M.D is an emergency medicine physician with a practice address in Tucson, Arizona, and NPI 1194172544, issued on May 16, 2016. Check the license (Arizona R75591, 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 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194172544
Name
Christopher Chen Wu
Credential
M.D
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
R75591 AZ
Self-reported in NPPES; status is on the state search
Practice location
1501 N Campbell Ave, Tucson, AZ 85724
Phone
(520) 626-7233
Enumerated
May 16, 2016
Record last updated
May 16, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191015000411); accepts Medicare assignment
Medical or professional school
University Of Arizona College Of Medicine, 2016
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 1501 N Campbell Ave

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

  1. Alexa Aaronson, MDPediatrics Physician1427793652
  2. Mohammed Abbas, MDOrthopaedic Surgery Physician1003437872
  3. Josephine Acuna, M.DEmergency Medicine Physician1710325287
  4. Rodney Adam, MDInfectious Disease Physician1548249485
  5. Matthew Adams, D.O.Infectious Disease Physician1578941720
  6. Elana Addis, M.DObstetrics & Gynecology Physician1730150582

Verify Christopher Chen Wu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license R75591
    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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6% fewer Medicare Part D claims than the average emergency medicine physician in 2024

212 Medicare Part D claims for 164 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. Christopher Wu212
  2. Specialty average226

Most prescribed

  1. Cephalexin41 claims
  2. Hydrocodone-Acetaminophen16 claims
  3. Ondansetron Odt13 claims
  4. Prednisone11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score60.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Berkeley Emergency Medical Group IncBerkeley, CA
  2. California Emergency Associates A California Medical CorporationSan Francisco, CA

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

Christopher Chen Wu among 1,494 emergency medicine physician records in Arizona

Christopher Chen Wu, M.D is one of 1,494 emergency medicine physician records with a practice address in Arizona. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 67% of them.

  • NPI issued2016 · 67% of these records are older, 30% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2016 · median 2014 among the 828 with a school on file
  • Record last updated2016 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

422 emergency medicine physician records list a practice address in Tucson

They are 422 of the 18,788 NPPES records with a practice address in Tucson, and 1,494 emergency medicine physician records in Arizona.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Daniel Beskind, MDTucson, AZ 857241699747337
  2. Lisa Chan, MDTucson, AZ 857241104899251
  3. Albert Fiorello, MDTucson, AZ 857241962475897
  4. John Guisto, MDTucson, AZ 857241003881798
  5. Kenneth Iserson, MDTucson, AZ 857241609841238
  6. Samuel Keim, MDTucson, AZ 857241134194616
  7. Harvey Meislin, MDTucson, AZ 857241043301674
  8. Marie Olson, MDTucson, AZ 857241386726313

Common questions

What is Christopher Chen Wu, M.D's NPI number?

Christopher Chen Wu, M.D's National Provider Identifier (NPI) is 1194172544, issued on May 16, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Chen Wu, M.D located?

The NPPES record lists a practice address at 1501 N Campbell Ave, Tucson, AZ, 85724. Phone: (520) 626-7233. Providers update this record themselves, so call before visiting.

How can I verify Christopher Chen Wu, M.D's license?

NPPES lists Arizona license number R75591, 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.

How much does Christopher Chen Wu, M.D prescribe under Medicare Part D?

In 2024, Christopher Chen Wu, M.D had 212 Medicare Part D claims for 164 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Christopher Chen Wu, M.D's MIPS final score?

The 2023 MIPS final score is 86.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.