1. Home
  2. Directory
  3. California
  4. Fremont
  5. Internal Medicine
  6. NPI Profile

YU-MING CHANG M.D., PH.D.
NPI 1760659866
Internal Medicine - Gastroenterology in Fremont, CA

Active since May 08, 2008PECOS EnrolledAccepts Medicare Assignment
91.04/100
CMS Quality Rating
40737 PALATINO ST, FREMONT, CA 94539(408) 646-4176(408) 413-1029 Get Directions Write a Review

NPPES record last updated: January 25, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 25, 2022, Jul 9, 2018, Nov 14, 2016 and 1 more (4 updates tracked since 2016).

About Yu-ming Chang M.d., Ph.d. NPPES

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

YU-MING CHANG M.D., PH.D. (NPI 1760659866) is an individual gastroenterology provider in Fremont, California, licensed in California (A110174) and active in the NPI registry since May 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1760659866
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameYU-MING CHANGCredential: M.D., PH.D.
Location Address40737 PALATINO STFremont, CA 94539-3833
Mailing Address40737 Palatino StFremont, CA 94539-3833 · (408) 646-4176 · Fax (408) 413-1029
Phone(408) 646-4176
Fax(408) 413-1029
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateMay 8, 2008
Last NPPES UpdateJanuary 25, 20224 updates tracked since enumeration
NPPES CertifiedJanuary 25, 2022
✔ NPI 1760659866 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · A110174
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License A110174 (CA), 4301097844 (MI)
40737 PALATINO ST, Fremont, CA 94539
Open in Google Maps ↗

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

Yu-ming Chang M.d., Ph.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 ID1355563214
PECOS Enrollment IDI20150710000009
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 Yu-ming Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Alameda Health System
4.8 mi
Federally Qualified Health Center (FQHC)
6066 CIVIC TERRACE AVE
Newark, CA 94560
  • Reassigned Medicare billing, California enrollment
  • 900 clinicians in this Medicare group
NPI 1497956288 (510) 505-1600
John Muir Trauma Physicians Billing Service
25 mi
Hospitalist
1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598
  • Reassigned Medicare billing, California enrollment
  • 810 clinicians in this Medicare group
NPI 1093864837 (925) 947-5331

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 94539 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
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.

91.04/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality82.13
Promoting Interoperability100
Improvement Activities40
Cost64.1

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 Yu-ming Chang's NPI number?

The NPI number for Yu-ming Chang is 1760659866. It was assigned to this individual provider in the NPPES registry on May 8, 2008.

Where is Yu-ming Chang located?

Yu-ming Chang practices at 40737 Palatino St, Fremont, CA 94539. The listed phone number is (408) 646-4176.

What is Yu-ming Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Yu-ming Chang enrolled in Medicare?

Yes. Yu-ming 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 Yu-ming Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yu-ming Chang reassigns Medicare benefits to 2 organizations: Alameda Health System (Newark, CA) and John Muir Trauma Physicians Billing Service (Walnut Creek, CA). 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 Yu-ming 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 Yu-ming Chang was last updated on January 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.