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DR. CHIA-LING NHAN-CHANG M.D.
NPI 1265686794
Obstetrics & Gynecology - Maternal & Fetal Medicine in San Diego, CA

Active since November 11, 2008PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
200 W ARBOR DR, SAN DIEGO, CA 92103(009) 268-2738 Get Directions Write a Review

NPPES record last updated: April 22, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Chia-ling Nhan-chang M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHIA-LING NHAN-CHANG M.D. (NPI 1265686794) is an individual maternal & fetal medicine provider in San Diego, California, licensed in California (C193872) and active in the NPI registry since November 2008. She is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1265686794
Entity TypeIndividualFemale
Primary Taxonomy207VM0101X
Provider Legal NameDR. CHIA-LING NHAN-CHANGCredential: M.D.
Location Address200 W ARBOR DRSan Diego, CA 92103-9000
Mailing AddressFile 57326Los Angeles, CA 90074-0001
Phone(009) 268-2738
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateNovember 11, 2008
Last NPPES UpdateApril 22, 2024
NPPES CertifiedApril 22, 2024
✔ NPI 1265686794 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
Licenses✔ Licensed in CA · C193872✔ Licensed in NY · 255921
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
200 W ARBOR DR, San Diego, CA 92103
Open in Google Maps ↗

Secondary Practice Locations 4

Location 116950 Via TazonSan Diego, CA 92127-1607 · Phone (800) 926-8273
Location 2781 Garden View Ct Ste 200Encinitas, CA 92024-2481 · Phone (800) 926-8273
Location 39300 Campus Point DrLA Jolla, CA 92037-1300 · Phone (800) 926-8273
Location 44910 Directors PlSan Diego, CA 92121-3811 · Phone (800) 926-8273

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Chia-ling Nhan-chang M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5193918639
PECOS Enrollment IDI20240328002162
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Chia-ling Nhan-chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California
0.1 mi
Obstetrics & Gynecology
200 W ARBOR DR
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 171 clinicians in this Medicare group
NPI 1174626618 (800) 926-8273
Trustees Of Columbia University In The City Of New York
2,433 mi
Internal Medicine
400 KELBY ST, 8TH FLOOR CLINICAL REVENUE OFFICE
Fort Lee, NJ 07024
  • Reassigned Medicare billing, New York enrollment
  • Also billed through NPI 1508266347 (New York)
  • 1,048 clinicians in this Medicare group
NPI 1982993184 (212) 304-6408

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.8
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. RAMIN MOTARJEMI M.D.
Internal Medicine (Geriatric Medicine)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (858) 249-2500
DR. KYLE PALMER EDMONDS M.D., FAAHPM
Hospice, Inpatient
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
SHAWN RAVEENTH VEDAMANI MD
Anesthesiology
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
DALE MICHAEL TRUJILLO NP
Nurse Practitioner
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
DR. EUGENE THOMAS RICHARDSON IV MD
Internal Medicine (Infectious Disease)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
KAYLEE PETERSEN ARNP
Nurse Practitioner (Psychiatric/Mental Health)
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
IRENE NEVAREZ NP
Nurse Practitioner
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (800) 926-8273
WILLIAM JAMES MOSS M.D.
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR
SAN DIEGO, CA 92103
San Diego County (508) 395-4189

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Chia-ling Nhan-chang's NPI number?

The NPI number for Chia-ling Nhan-chang is 1265686794. It was assigned to this individual provider in the NPPES registry on November 11, 2008.

Where is Chia-ling Nhan-chang located?

Chia-ling Nhan-chang practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (009) 268-2738.

What is Chia-ling Nhan-chang's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Chia-ling Nhan-chang enrolled in Medicare?

Yes. Chia-ling Nhan-chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Chia-ling Nhan-chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chia-ling Nhan-chang reassigns Medicare benefits to 2 organizations: Regents Of The University Of California (San Diego, CA) and Trustees Of Columbia University In The City Of New York (Fort Lee, NJ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Chia-ling Nhan-chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Chia-ling Nhan-chang was last updated on April 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.