NPPES file of Aug 9, 2026

Miao Crystal Yu, M.D.

Obstetrics Physician · Irvine, CA

Miao Crystal Yu, M.D. is an obstetrics physician with a practice address in Irvine, California, and NPI 1255466413, issued on Feb 21, 2007. Check the license (California A136411, as entered in NPPES) on the Medical Board of California; 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
1255466413
Name
Miao Crystal Yu
Credential
M.D.
Primary taxonomy
Obstetrics Physician 207VX0000X
License number
A136411 CA
Self-reported in NPPES; status is on the state search
Practice location
18102 Culver Drive, Irvine, CA 92612
Phone
(657) 241-8220
Enumerated
Feb 21, 2007
Record last updated
Apr 13, 2023
Fax
(949) 407-5278
Medicare enrollment
Enrolled (PECOS I20160330000771); accepts Medicare assignment
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 18102 Culver Drive

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

  1. Jenny Luong, RPA-CMedical Physician Assistant1316281280

Verify Miao Crystal Yu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A136411
    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 California license search

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56% fewer Medicare Part D claims than the average obstetrics physician in 2024

95 Medicare Part D claims for 40 beneficiaries, against an average of 218 among the 863 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Miao Yu95
  2. Specialty average218

Most prescribed

  1. Estradiol23 claims
  2. Estradiol (Twice Weekly)11 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): 76.7 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 score80.9
  2. Costout of 100 · 30%55.1
  3. Promoting interoperabilityout of 100 · 25%78.0
  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 one group practice

  1. Memorialcare Medical FoundationIrvine, CA

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

Miao Crystal Yu among 174 obstetrics physician records in California

Miao Crystal Yu, M.D. is one of 174 obstetrics physician records with a practice address in California. 67% 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 44% of them.

  • NPI issued2007 · 44% of these records are older, 39% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2011 · median 2002 among the 91 with a school on file
  • Record last updated2023 · 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 207VX0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in California

There are 174 obstetrics physician records in California.

The 8 obstetrics physician records with the nearest ZIP codes

  1. Lisa Crane, M.D.Irvine, CA 926041033272901
  2. Patricia Strachan, M.D.Irvine, CA 926041114959434
  3. Alexander Deyan, MDNewport Beach, CA 926601083770622
  4. Amal MalekNewport Beach, CA 926601174007421
  5. Joan Hazel Calinisan, MDMurrieta, CA 925621760493886
  6. Martina Chiodi, M.D.Murrieta, CA 925621972779189
  7. Emily Thomson, D.O.Murrieta, CA 925621508028846
  8. Kate Adkins, M.D.Hemet, CA 925431023205408

Common questions

What is Miao Crystal Yu, M.D.'s NPI number?

Miao Crystal Yu, M.D.'s National Provider Identifier (NPI) is 1255466413, issued on Feb 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Miao Crystal Yu, M.D. located?

The NPPES record lists a practice address at 18102 Culver Drive, Irvine, CA, 92612. Phone: (657) 241-8220. Providers update this record themselves, so call before visiting.

How can I verify Miao Crystal Yu, M.D.'s license?

NPPES lists California license number A136411, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Miao Crystal Yu, M.D. prescribe under Medicare Part D?

In 2024, Miao Crystal Yu, M.D. had 95 Medicare Part D claims for 40 beneficiaries; the average among obstetrics physician prescribers was 218. Part D covers Medicare prescriptions only.

What is Miao Crystal Yu, M.D.'s MIPS final score?

The 2023 MIPS final score is 76.7 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.