NPPES file of Aug 9, 2026

Nancy Cao, MD

Emergency Medicine Physician · Tucson, AZ

Nancy Cao, MD is an emergency medicine physician with a practice address in Tucson, Arizona, and NPI 1780473835, issued on May 5, 2025. Check the license (Arizona R81564, as entered in NPPES) on the Arizona Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1780473835
Name
Nancy Cao
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
R81564 AZ
Self-reported in NPPES; status is on the state search
Practice location
3950 S Country Club RD Ste 200, Tucson, AZ 85714
Phone
(520) 626-5582
Enumerated
May 5, 2025
Record last updated
May 5, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →

Also registered at 3950 S Country Club RD Ste 200

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

  1. Robert Camarillo, DOEmergency Medicine Physician1689310989
  2. Chane Cilliers, MDFamily Medicine Physician1558054437
  3. Joseph Demirjian, MDEmergency Medicine Physician1477127512
  4. Wendy DigiacintoEmergency Medicine Physician1598349342
  5. Gabrielle Gallegos, MDEmergency Medicine Physician1093508152
  6. Amanda Huff, MDEmergency Medicine Physician1508655846

Verify Nancy Cao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license R81564    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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Nancy Cao among 1,494 emergency medicine physician records in Arizona

Nancy Cao, MD 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 not. Its NPI, issued in 2025, is newer than 97% of them.

  • NPI issued2025 · 97% of these records are older, 1% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 55% of these records are
  • Record last updated2025 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,494 in Arizona → Every provider in Tucson → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Robert Camarillo, DOTucson, AZ 857141689310989
  2. Joseph Demirjian, MDTucson, AZ 857141477127512
  3. Wendy DigiacintoTucson, AZ 857141598349342
  4. Lisa Goldberg, M.D.Tucson, AZ 857141366829228
  5. Philipp Hannan, M.D.Tucson, AZ 857141013365675
  6. Kelcy Higa, M.D.Tucson, AZ 857141023465630
  7. Zachary JohnsonTucson, AZ 857141619545282
  8. Kyra Langhelm, DOTucson, AZ 857141467165183

Common questions

What is Nancy Cao, MD's NPI number?

Nancy Cao, MD's National Provider Identifier (NPI) is 1780473835, issued on May 5, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Cao, MD located?

The NPPES record lists a practice address at 3950 S Country Club RD Ste 200, Tucson, AZ, 85714. Phone: (520) 626-5582. Providers update this record themselves, so call before visiting.

How can I verify Nancy Cao, MD's license?

NPPES lists Arizona license number R81564, 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.

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.