NPPES file of Aug 9, 2026

Yunyu Cao, MD

Internal Medicine Physician · Issaquah, WA

Yunyu Cao, MD is an internal medicine physician with a practice address in Issaquah, Washington, and NPI 1417091802, issued on Feb 18, 2007. Check the license (Washington MD00047351, as entered in NPPES) on the Washington Medical Commission; 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
1417091802
Name
Yunyu Cao
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD00047351 WA
Self-reported in NPPES; status is on the state search
Practice location
1455 11TH Ave NW, Issaquah, WA 98027
Phone
(425) 391-3900
Enumerated
Feb 18, 2007
Record last updated
Nov 25, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
1417091802 WA
Medicare enrollment
Enrolled (PECOS I20070829000434); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1455 11TH Ave NW

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

  1. Seema Diddee, MDFamily Medicine Physician1144359209
  2. Tadd Hsie, MDFamily Medicine Physician1083895346
  3. Amy Ly, ARNPFamily Nurse Practitioner1770954653

Verify Yunyu Cao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00047351
    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 Washington 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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58% more Medicare Part D claims than the average internal medicine physician in 2024

5,026 Medicare Part D claims for 400 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 243 claims were for opioids.

  1. Yunyu Cao5,026
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium365 claims
  2. Amlodipine Besylate319 claims
  3. Lisinopril255 claims
  4. Levothyroxine Sodium185 claims
  5. Losartan Potassium168 claims
  6. Gabapentin148 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 MIPS final score for 2023 (Medicare payment program): 93.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score74.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through 3 group practices

  1. Select Outpatient Services IncGlenview, IL
  2. Select Rehabilitation, LLCGlenview, IL
  3. The Association OF University PhysiciansSeattle, WA

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

Yunyu Cao among 3,079 internal medicine physician records in Washington

Yunyu Cao, MD is one of 3,079 internal medicine physician records with a practice address in Washington. 75% 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 45% of them.

  • NPI issued2007 · 45% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1999 · median 2006 among the 1,852 with a school on file
  • Record last updated2013 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 internal medicine physician records list a practice address in Issaquah

They are 19 of the 1,727 NPPES records with a practice address in Issaquah, and 3,079 internal medicine physician records in Washington.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Gordon Brandt, MDIssaquah, WA 980271891182705
  2. Cheyenne Enevold, MDIssaquah, WA 980271487035713
  3. Yi Huang, MDIssaquah, WA 980271023428364
  4. Terry Jacobson, MDIssaquah, WA 980271063429256
  5. Kenneth Kay, MDIssaquah, WA 980271982628384
  6. Alice Kim, M.D.Issaquah, WA 980271023217734
  7. Sheri Malakhova, MDIssaquah, WA 980271164464517
  8. Randy MandellIssaquah, WA 980271841357381

Common questions

What is Yunyu Cao, MD's NPI number?

Yunyu Cao, MD's National Provider Identifier (NPI) is 1417091802, issued on Feb 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Yunyu Cao, MD located?

The NPPES record lists a practice address at 1455 11TH Ave NW, Issaquah, WA, 98027. Phone: (425) 391-3900. Providers update this record themselves, so call before visiting.

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

NPPES lists Washington license number MD00047351, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Yunyu Cao, MD prescribe under Medicare Part D?

In 2024, Yunyu Cao, MD had 5,026 Medicare Part D claims for 400 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Yunyu Cao, MD's MIPS final score?

The 2023 MIPS final score is 93.1 of 100. 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.