Emily Chang
- Part D claims, 2024
- 33
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Emily Chang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Emily Chang is an OB-GYN in Richmond, California
Emily Chang practices at Richmond Medical Center in Richmond, California.
Emily Chang's NPI, 1740866284, was assigned on March 23, 2021. Emily Chang graduated from University of Southern California Keck School of Medicine in 2021. Emily Chang holds California license A187806.
- NPI
- 1740866284NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991184061
- NPI enumeration date
- March 23, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Emily Chang practices at Richmond Medical Center in Richmond, California
Emily Chang's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Emily Chang is affiliated with 2 sites of care and 1 medical group
Emily Chang's primary practice is Richmond Medical Center in Richmond, California. Emily Chang is also affiliated with Santa Clara Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Emily Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Emily Chang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Emily Chang is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Emily Chang's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Emily Chang is licensed in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
OB-GYNs near Emily Chang
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Emily Chang's patients have a median age of 34
Across all payers, Dmand AI patient panel data puts Emily Chang's median patient age at 34, with 99% women.
Emily Chang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women99%
- Men0%
Source: Dmand AI Patient Panel Data
Emily Chang wrote 33 Medicare Part D claims in 2024
In 2024, Emily Chang wrote 33 Medicare Part D claims for 21 patients. 100% of them were for generic drugs. CMS names the drug for 30 of them, across 2 drugs with 11 or more claims each, at $228 in total drug cost.
Emily Chang's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Emily Chang's Part D claims, 2024
- Opioids48%16 of 33 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Emily Chang takes part in Medicare
Emily Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Emily Chang graduated from University of Southern California Keck School of Medicine
Emily Chang graduated from University of Southern California Keck School of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Emily Chang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Emily Chang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Emily Chang's NPI number?
Emily Chang's NPI number is 1740866284. It was assigned on March 23, 2021, and it is active in the NPI Registry.
What does Emily Chang specialize in?
Emily Chang is an OB-GYN in Richmond, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Emily Chang practice?
Emily Chang practices at 901 Nevin Ave, Richmond, CA 94801. Emily Chang's primary practice is Richmond Medical Center in Richmond, California.
What is Emily Chang's office phone number?
The practice phone on file for Emily Chang is (510) 307-1555.
What is Emily Chang's medical license number?
Emily Chang holds California license A187806, one of 2 state licenses on file.
Which hospitals is Emily Chang affiliated with?
Emily Chang is affiliated with Santa Clara Medical Center.
What medical group is Emily Chang part of?
Emily Chang is linked to The Permanente Medical Group, Inc.
Does Emily Chang accept Medicare?
Yes. CMS lists Emily Chang as accepting Medicare assignment.
Where did Emily Chang go to medical school?
Emily Chang graduated from University of Southern California Keck School of Medicine in 2021.
What drugs does Emily Chang prescribe most?
In 2024 Medicare Part D data, Emily Chang's most prescribed drugs by claims were Oxycodone HCl and Ibuprofen.
How long has Emily Chang been practicing?
Emily Chang graduated from medical school in 2021, 5 years ago.
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