Dr. Scott Chichen Changchien, MD
- Industry payments
- $48
- Medical group
- 1
- Insurance carriers
- 5
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 3641 W 5th St, Oxnard, CA 93030-6424
- Practice phone
- Call (805) 985-5505
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Dr. Changchien'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.
Dr. Scott Chichen Changchien is an OB-GYN in Oxnard, California
Dr. Changchien practices with Alameda Health System, a medical group.
Dr. Changchien's NPI, 1902850555, was assigned on May 19, 2006. Dr. Changchien graduated from Chung Shan Medical University in 1975. Dr. Changchien's California license number on file is C51871.
- NPI
- 1902850555NPI Registry (opens in a new tab)
- NPI enumeration date
- May 19, 2006
- NPI status
- Active
- Practice phone
- (805) 985-5505
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Scott Chichen Changchien's practice address is in Oxnard, California
Dr. Changchien's practice address in the NPI Registry is 3641 W 5th St, Oxnard, CA 93030-6424. The practice phone is (805) 985-5505.
- NPI Registry address3641 W 5th St, Oxnard, CA 93030-6424Phone(805) 985-5505
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Scott Chichen Changchien is affiliated with 1 medical group
Dr. Changchien is part of Alameda Health System, a medical group in Oakland, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Scott Chichen Changchien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Changchien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alameda Health System | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Alameda Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Scott Chichen Changchien is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Changchien's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Changchien has a license on file in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
OB-GYNs near Dr. Changchien
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
Dr. Scott Chichen Changchien's patients have a median age of 37
Across all payers, Dmand AI patient panel data puts Dr. Changchien's median patient age at 37, with 100% women.
Dr. Changchien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Scott Chichen Changchien received $48 in industry payments from 2016 to 2021
CMS Open Payments shows 3 general payments to Dr. Changchien from 3 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $24.
General payments to Dr. Changchien by program year, 2016 to 2021
Companies that paid Dr. Changchien the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Scott Chichen Changchien graduated from Chung Shan Medical University
Dr. Changchien graduated from Chung Shan Medical University in 1975.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Scott Chichen Changchien accepts plans from 5 insurance carriers
Dr. Changchien is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
Plan types Dr. Changchien accepts, by number of carriers
- Medicare5
- PPO5
- EPO1
- HMO1
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Scott Chichen Changchien'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 | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Dr. Scott Chichen Changchien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Scott Chichen Changchien's NPI number?
Dr. Scott Chichen Changchien's NPI number is 1902850555. It was assigned on May 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Scott Chichen Changchien?
Dr. Scott Chichen Changchien is an OB-GYN in Oxnard, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Scott Chichen Changchien practice?
Dr. Changchien practices at 3641 W 5th St, Oxnard, CA 93030-6424. Dr. Changchien's primary practice is Alameda Health System, a medical group.
What is Dr. Scott Chichen Changchien's office phone number?
The practice phone on file for Dr. Changchien is (805) 985-5505.
What is Dr. Scott Chichen Changchien's medical license number?
Dr. Changchien's California license number on file is C51871.
What medical group is Dr. Scott Chichen Changchien part of?
Dr. Changchien is part of Alameda Health System in Oakland, California.
Where did Dr. Scott Chichen Changchien go to medical school?
Dr. Changchien graduated from Chung Shan Medical University in 1975.
Has Dr. Scott Chichen Changchien received payments from drug or device companies?
CMS Open Payments shows $48 in general payments to Dr. Changchien from 3 companies from 2016 to 2021. The largest total came from Hologic Inc.
How long has Dr. Scott Chichen Changchien been practicing?
Dr. Changchien graduated from medical school in 1975, 51 years ago.
What insurance does Dr. Scott Chichen Changchien accept?
Dr. Changchien is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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