NPPES file of Aug 9, 2026

Chia-Ling Nhan-Chang, M.D.

Maternal & Fetal Medicine Physician · San Diego, CA

Chia-Ling Nhan-Chang, M.D. is a maternal & fetal medicine physician with a practice address in San Diego, California, and NPI 1265686794, issued on Nov 11, 2008. Check the license (California C193872, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265686794
Name
Chia-Ling Nhan-Chang
Credential
M.D.
Primary taxonomy
Maternal & Fetal Medicine Physician 207VM0101X
License numbers
C193872 CA
255921 NY
Self-reported in NPPES; status is on the state search
Practice location
200 W Arbor Dr, San Diego, CA 92103
Phone
(009) 268-2738
Enumerated
Nov 11, 2008
Record last updated
Apr 22, 2024
Medicare enrollment
Enrolled (PECOS I20240328002162); 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 200 W Arbor Dr

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

  1. Alison A'Court, MDAnesthesiology Physician1912218199
  2. Benjamin Abbadessa, M.D.Colon & Rectal Surgery Physician1255593612
  3. Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
  4. Joseph Abdelmalek, M.DNephrology Physician1740485531
  5. Kristy AbelCertified Registered Nurse Anesthetist1962113035
  6. Paula Abeleda, NPFamily Nurse Practitioner1558945022

Verify Chia-Ling Nhan-Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C193872
    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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The MIPS final score for 2023 (Medicare payment program): 100 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 score86.8
  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 one group practice

  1. Regents OF The University OF CaliforniaSan Diego, CA

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

Chia-Ling Nhan-Chang among 343 maternal & fetal medicine physician records in California

Chia-Ling Nhan-Chang, M.D. is one of 343 maternal & fetal medicine physician records with a practice address in California. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.

  • NPI issued2008 · 63% of these records are older, 31% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2003 · median 2003 among the 181 with a school on file
  • Record last updated2024 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Maternal & Fetal Medicine Physician providers in California

There are 343 maternal & fetal medicine physician records in California.

The 8 maternal & fetal medicine physician records with the nearest ZIP codes

  1. Jerasimos Ballas, M.D.San Diego, CA 921031871767384
  2. Homer Chin, M.D.San Diego, CA 921031649205345
  3. Cynthia Gyamfi Bannerman, M.D.San Diego, CA 921031568494250
  4. Thomas Kelly, M.D.San Diego, CA 921031336203496
  5. Gladys Ramos, M.D.San Diego, CA 921031710041736
  6. David Schrimmer, MDSan Diego, CA 921031861578833
  7. Steven Thomas, MDSan Diego, CA 921031639242589
  8. Michelle Nguyen, MDSan Diego, CA 921111104364017

Common questions

What is Chia-Ling Nhan-Chang, M.D.'s NPI number?

Chia-Ling Nhan-Chang, M.D.'s National Provider Identifier (NPI) is 1265686794, issued on Nov 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Chia-Ling Nhan-Chang, M.D. located?

The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (009) 268-2738. Providers update this record themselves, so call before visiting.

How can I verify Chia-Ling Nhan-Chang, M.D.'s license?

NPPES lists California license number C193872, 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.

What is Chia-Ling Nhan-Chang, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 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.