AntioxidantsBase SequenceBlotting, Western
Dr. Peter P. Chang, MD
NPI1780688028PAC ID4789775008
- Medicare services, 2024
- 4,879
- Medicare patients, 2024
- 346
- Part D claims, 2024
- 34,460
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 11234 Anderson St, Loma Linda, CA 92354
- Practice phone
- Call (909) 558-5075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Loma Linda University Medical Center
Loma Linda, 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. Peter P. Chang is a family medicine physician in Loma Linda, California
Dr. Chang practices at Loma Linda University Medical Center in Loma Linda, California.
Dr. Chang's NPI, 1780688028, was assigned on June 1, 2005. Dr. Chang graduated from UTMB Health in 1984. Dr. Chang holds Texas license G8044.
NPI and contact details
- NPI
- 1780688028NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789775008
- NPI enumeration date
- June 1, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 558-5075
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter P. Chang practices at Loma Linda University Medical Center in Loma Linda, California
Dr. Chang's primary practice is Loma Linda University Medical Center, at 11234 Anderson St, Loma Linda, CA 92354 in San Bernardino County. The practice phone is (909) 558-5075.
- Loma Linda University Medical Center11234 Anderson St, Loma Linda, CA 92354 · San Bernardino CountyPhone(909) 558-5075
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter P. Chang is affiliated with 17 sites of care and 5 medical groups
Dr. Chang's primary practice is Loma Linda University Medical Center in Loma Linda, California. Dr. Chang is also affiliated with Shannon Medical Center. The medical group on file is West Texas Rehabilitation Center. Dmand AI also links Dr. Chang to 5 more home health agencies, 5 hospices, 4 medical groups, 3 group practices and clinics, 1 therapy and rehab clinic and 1 skilled nursing facility, each named with a free account.
Loma Linda University Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Peter P. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 16 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loma Linda University Medical Center | Available with a free account |
| +16 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter P. Chang is one of 15,680 family medicine physicians in California
Family medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Chang's licenses on file in 2 states: Texas and Illinois.
Specialties and state licenses
- Family medicine, TexasPrimary
- Illinois license
Clinical focus
Dmand AI lists acid reflux, acute mini-stroke (TIA), acute sinusitis, acute skin infection, ADHD, alzheimer's disease, aneurysm and anxiety among the conditions Dr. Chang treats.
Family medicine physicians near Dr. Chang
Counts of family medicine physicians 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. Peter P. Chang billed Medicare for 4,879 services in 2024
CMS data shows 4,879 Medicare services from Dr. Chang across 32 procedure codes in 2024, for 346 Medicare patients. Medicare paid $163,468 for them. Every service was in an office.
Medicare services, 20244,879
Medicare patients346
Paid by Medicare$163,468
Procedure codes32
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,9942024: 2,44718%
- Drugs given in the office
- 2023: 1,2302024: 1,1149%
- Other services
- 2023: 1742024: 521199%
- Tests and treatments
- 2023: 4272024: 4133%
- Lab and pathology
- 2023: 232024: 233913%
- Surgery
- 2023: 1162024: 15130%
Dr. Chang compared with the California median for family medicine physicians, 2024
- Dr. Chang
- California median
- Medicare services
- 4,879vs 24619.8 times
- Medicare patients
- 346vs 1182.9 times
- Part D claims
- 33,466vs 83340.2 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter P. Chang treated 346 Medicare patients in 2024, average age 69
CMS counts 346 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 124 patients. 75% of them have high blood pressure, and 54% have high cholesterol. 42% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 73, with 53% women.
Medicare patients, 2024346
Average age69
Average risk score1.46
Also on Medicaid42%
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women18854%
- Men15846%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol54%
- Mood disorders44%
- Arthritis42%
- Anxiety40%
- Depression40%
- Diabetes39%
- Heart failure26%
Share of Medicare patients with each condition. A patient can have several.
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 73
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter P. Chang wrote 34,460 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 34,460 Medicare Part D claims for 839 patients. 92% of them were for generic drugs. CMS names the drug for 33,466 of them, across 258 drugs with 11 or more claims each, at $1,378,936 in total drug cost. In 2023, CMS named 23,240 claims across 261 drugs.
Part D claims, 202434,460
Drugs named by CMS258
Total drug cost$1.4M
Part D patients839
Dr. Chang's Part D claims by kind of drug, 2024
- Generic31,666 claims92%
- Brand-name2,660 claims8%
- Other134 claims0%
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
- Opioids4%1,539 of 34,460 claims
- Antibiotics3%904 of 34,460 claims
- Antipsychotics, patients 65 and over1%372 of 34,460 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: 23,2402024: 33,46644%
Drugs named by CMS: 258 in 2024, 261 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. Peter P. Chang takes part in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Peter P. Chang has 2 publications on record
Dmand AI links 2 papers to Dr. Chang in 2007. The most frequent topics are Antioxidants and Isothiocyanates.
Papers2
Topics Dr. Chang writes about most
- Antioxidants
- Isothiocyanates
Recent publications by Dr. Chang
Anticarcinogenic AgentsAntioxidantsCarcinoma, Hepatocellular
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 family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter P. Chang received $22,757 in industry payments from 2016 to 2025
CMS Open Payments shows 653 general payments to Dr. Chang from 54 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 59% of the total. Abbvie Inc. paid the most, $15,005.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
$22.8Kin total
- Consulting fees$13,50059%
- Food and beverage$9,20840%
- Education$490%
Companies that paid Dr. Chang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter P. Chang graduated from UTMB Health
Dr. Chang graduated from UTMB Health in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Peter P. Chang accepts plans from 21 insurance carriers
Dr. Chang is in network with 21 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Excellus BlueCross BlueShield
- HCSC
- Alliant Health Plans
- Aspirus Health Plan
- +13 more carriersWith a free account
Plan types Dr. Chang accepts, by number of carriers
- PPO13
- HMO10
- Medicare10
- POS7
- EPO5
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Peter P. 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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (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) |
| 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. Peter P. 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. Peter P. Chang's NPI number?
Dr. Peter P. Chang's NPI number is 1780688028. It was assigned on June 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter P. Chang?
Dr. Peter P. Chang is a family medicine physician in Loma Linda, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Peter P. Chang practice?
Dr. Chang practices at 11234 Anderson St, Loma Linda, CA 92354. Dr. Chang's primary practice is Loma Linda University Medical Center in Loma Linda, California. Dmand AI also links Dr. Chang to 5 home health agencies, 5 hospices, 4 medical groups, 3 group practices and clinics, 1 therapy and rehab clinic and 1 skilled nursing facility.
What is Dr. Peter P. Chang's office phone number?
The practice phone on file for Dr. Chang is (909) 558-5075.
What is Dr. Peter P. Chang's medical license number?
Dr. Chang holds Texas license G8044, one of the licenses on file in 2 states.
Which states has Dr. Peter P. Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in Texas (1985 to 2026) and Illinois (1987 to 1990).
Which hospitals is Dr. Peter P. Chang affiliated with?
Dr. Chang is affiliated with Shannon Medical Center.
What medical group is Dr. Peter P. Chang part of?
Dr. Chang is linked to West Texas Rehabilitation Center. Dmand AI links Dr. Chang to 4 more medical groups.
Does Dr. Peter P. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 4,879 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Peter P. Chang see?
CMS counts 346 Medicare patients who saw Dr. Chang in 2024, with an average age of 69.
Show 7 more questionsShow fewer questions
What services does Dr. Peter P. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, established patient (99214), injected or infused drug (J3301) and care management and other visits (99458).
Where did Dr. Peter P. Chang go to medical school?
Dr. Chang graduated from UTMB Health in 1984.
What drugs does Dr. Peter P. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Lisinopril.
Has Dr. Peter P. Chang received payments from drug or device companies?
CMS Open Payments shows $22,757 in general payments to Dr. Chang from 54 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Peter P. Chang been practicing?
Dr. Chang graduated from medical school in 1984, 42 years ago.
Does Dr. Peter P. Chang do research?
Dmand AI links 2 publications to Dr. Chang.
What insurance does Dr. Peter P. Chang accept?
Dr. Chang is in network with 21 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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