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Dr. Natalie Y. Chang, DO
NPI1205018561PAC ID2860545563
- Part D claims, 2024
- 5,453
- Publications
- 1
- Industry payments
- $69
- Affiliated sites
- 1
- Medical group
- 1
- 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 Dr. 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.
Dr. Natalie Y. Chang is an internist in Richmond, California
Dr. Chang practices at Richmond Medical Center in Richmond, California.
Dr. Chang's NPI, 1205018561, was assigned on November 28, 2007. Dr. Chang graduated from WesternU College of Osteopathic Medicine of the Pacific in 2009. Dr. Chang holds California license 20A10151.
NPI and contact details
- NPI
- 1205018561NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860545563
- NPI enumeration date
- November 28, 2007
- 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
- 46
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Natalie Y. Chang practices at Richmond Medical Center in Richmond, California
Dr. 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
Dr. Natalie Y. Chang is affiliated with 2 sites of care and 1 medical group
Dr. Chang's primary practice is Richmond Medical Center in Richmond, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Chang to 1 more group practice or clinic, named with a free account.
Richmond Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Natalie Y. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. 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
For health IT teams
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Dr. Natalie Y. Chang is one of 16,751 internists in California
Internal medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chang is board certified in internal medicine by the American Board of Internal Medicine. Dr. Chang is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists asthma and chronic diabetes among the conditions Dr. Chang treats.
Internists near Dr. Chang
Counts of internists 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. Natalie Y. Chang's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 55, with 77% women.
Dr. 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 55
Patient panel by sex, all payers
- Women77%
- Men23%
Source: Dmand AI Patient Panel Data
Dr. Natalie Y. Chang wrote 5,453 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 5,453 Medicare Part D claims for 982 patients. 90% of them were for generic drugs. CMS names the drug for 4,915 of them, across 83 drugs with 11 or more claims each, at $149,600 in total drug cost. In 2023, CMS named 4,073 claims across 77 drugs.
Part D claims, 20245,453
Drugs named by CMS83
Total drug cost$149,600
Part D patients982
Dr. Chang's Part D claims by kind of drug, 2024
- Generic4,901 claims90%
- Brand-name491 claims9%
- Other61 claims1%
Dr. 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 Dr. Chang's Part D claims, 2024
- Opioids1%70 of 5,453 claims
- Antibiotics3%151 of 5,453 claims
- Antipsychotics, patients 65 and over0%16 of 5,453 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,0732024: 4,91521%
Drugs named by CMS: 83 in 2024, 77 in 2023.
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 Dr. Natalie Y. Chang takes part in Medicare
Dr. 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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Dr. Natalie Y. Chang has 1 publication on record
Dmand AI links 1 paper to Dr. Chang.
Papers1
Recent publications by Dr. Chang
See who Dr. Chang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chang works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Natalie Y. Chang received $69 in industry payments from 2020 to 2025
CMS Open Payments shows 3 general payments to Dr. Chang from 2 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $45.
General payments to Dr. Chang by program year, 2020 to 2025
Companies that paid Dr. Chang the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Natalie Y. Chang has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chang, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Chang
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Natalie Y. Chang graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Chang graduated from WesternU College of Osteopathic Medicine of the Pacific in 2009.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Natalie Y. Chang accepts plans from 2 insurance carriers
Dr. Chang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Chang accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Natalie Y. 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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Natalie Y. 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 Dr. Natalie Y. Chang's NPI number?
Dr. Natalie Y. Chang's NPI number is 1205018561. It was assigned on November 28, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Natalie Y. Chang?
Dr. Natalie Y. Chang is an internist in Richmond, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Natalie Y. Chang practice?
Dr. Chang practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Chang's primary practice is Richmond Medical Center in Richmond, California. Dmand AI also links Dr. Chang to 1 group practice or clinic.
What is Dr. Natalie Y. Chang's office phone number?
The practice phone on file for Dr. Chang is (510) 307-1555.
What is Dr. Natalie Y. Chang's medical license number?
Dr. Chang holds California license 20A10151.
What medical group is Dr. Natalie Y. Chang part of?
Dr. Chang is linked to The Permanente Medical Group, Inc.
Does Dr. Natalie Y. Chang accept Medicare?
Yes. CMS lists Dr. Chang as accepting Medicare assignment.
Is Dr. Natalie Y. Chang board certified?
Yes. Dr. Chang is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Natalie Y. Chang go to medical school?
Dr. Chang graduated from WesternU College of Osteopathic Medicine of the Pacific in 2009.
What drugs does Dr. Natalie Y. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Show 4 more questionsShow fewer questions
Has Dr. Natalie Y. Chang received payments from drug or device companies?
CMS Open Payments shows $69 in general payments to Dr. Chang from 2 companies from 2020 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Natalie Y. Chang been practicing?
Dr. Chang graduated from medical school in 2009, 17 years ago.
Does Dr. Natalie Y. Chang do research?
Dmand AI links 1 publication to Dr. Chang.
What insurance does Dr. Natalie Y. Chang accept?
Dr. Chang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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