Dr. John Hsien Wang, MD, PhD
- Medicare services, 2024
- 197
- Medicare patients, 2024
- 212
- Part D claims, 2022
- 183
- Hospital affiliations
- 1
- Industry payments
- $149
- Practice address
- 11234 Anderson St, Loma Linda, CA 92354
- Practice phone
- Call (909) 558-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Wang's professional email, personal email and mobile number
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Dr. John Hsien Wang is an internist in Loma Linda, California
Dr. Wang practices at Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church.
Dr. Wang's NPI, 1235498676, was assigned on May 4, 2012. Dr. Wang graduated from University of Alabama School of Medicine in 2010. Dr. Wang holds California license A124689.
- NPI
- 1235498676NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002137593
- NPI enumeration date
- May 4, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 558-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Hsien Wang practices at Loma Linda University Medical Center in Loma Linda, California
Dr. Wang'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) 558-4000.
- Loma Linda University Medical Center11234 Anderson St, Loma Linda, CA 92354 · San Bernardino CountyPhone(909) 558-4000
Source: Dmand AI Affiliation Data
Dr. John Hsien Wang is affiliated with 1 site of care and 3 medical groups
Dr. Wang's primary practice is Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Dr. Wang to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Hsien Wang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wang practices. 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 |
| +2 medical groups | 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 Seventh-day Adventist Church and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Hsien Wang is one of 16,751 internists in California
Internal medicine is Dr. Wang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Wang is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Wang
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. John Hsien Wang billed Medicare for 197 services in 2024
CMS data shows 197 Medicare services from Dr. Wang across 1 procedure code in 2024, for 212 Medicare patients. Medicare paid $26,960 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Wang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1922024: 1973%
Dr. Wang compared with the California median for internists, 2024
- Dr. Wang
- California median
- Medicare services
- 197vs 36145% below
- Medicare patients
- 212vs 15140% above
- Part D claims
- 183vs 42157% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Wang'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. Wang and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Hsien Wang treated 212 Medicare patients in 2024, average age 70
CMS counts 212 Medicare patients who saw Dr. Wang in 2024. The largest group is 65 to 74, with 82 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 63% are also on Medicaid. Their average risk score is 3.44, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Wang's median patient age at 61, with 60% women.
Dr. Wang's Medicare patients by age, 2024
Dr. Wang's Medicare patients by sex, 2024
- Women11554%
- Men9746%
Chronic conditions among Dr. Wang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes57%
- Arthritis54%
- Chronic kidney disease52%
- Heart failure50%
- Mood disorders43%
- Ischemic heart disease41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Hsien Wang wrote 183 Medicare Part D claims in 2022
In 2022, Dr. Wang wrote 183 Medicare Part D claims. They cover 10 drugs, with $2,142 in total drug cost. In 2021, CMS named 55 claims across 3 drugs.
Dr. Wang's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 552022: 183233%
Drugs named by CMS: 10 in 2022, 3 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. John Hsien Wang takes part in Medicare
Dr. Wang 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. John Hsien Wang received $149 in industry payments in 2021
CMS Open Payments shows 2 general payments to Dr. Wang from 2 drug and device companies in 2021. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $125.
Companies that paid Dr. Wang the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Hsien Wang graduated from University of Alabama School of Medicine
Dr. Wang graduated from University of Alabama School of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Hsien Wang'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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 Dr. John Hsien Wang
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. John Hsien Wang's NPI number?
Dr. John Hsien Wang's NPI number is 1235498676. It was assigned on May 4, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. John Hsien Wang?
Dr. John Hsien Wang is an internist in Loma Linda, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Hsien Wang practice?
Dr. Wang practices at 11234 Anderson St, Loma Linda, CA 92354. Dr. Wang's primary practice is Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church. Dmand AI also links Dr. Wang to 2 medical groups.
What is Dr. John Hsien Wang's office phone number?
The practice phone on file for Dr. Wang is (909) 558-4000.
What is Dr. John Hsien Wang's medical license number?
Dr. Wang holds California license A124689.
Which hospitals is Dr. John Hsien Wang affiliated with?
Dr. Wang practices at Loma Linda University Medical Center in Loma Linda, California.
What medical group is Dr. John Hsien Wang part of?
Dr. Wang is linked to Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI links Dr. Wang to 2 more medical groups.
Does Dr. John Hsien Wang accept Medicare?
Yes. CMS data shows Dr. Wang billed Medicare for 197 services in 2024, and Dr. Wang accepts Medicare assignment.
How many Medicare patients does Dr. John Hsien Wang see?
CMS counts 212 Medicare patients who saw Dr. Wang in 2024, with an average age of 70.
What services does Dr. John Hsien Wang bill to Medicare?
In 2024, Dr. Wang's most billed Medicare services were hospital inpatient care (99223).
Show 4 more questionsShow fewer questions
Where did Dr. John Hsien Wang go to medical school?
Dr. Wang graduated from University of Alabama School of Medicine in 2010.
What drugs does Dr. John Hsien Wang prescribe most?
In 2022 Medicare Part D data, Dr. Wang's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. John Hsien Wang received payments from drug or device companies?
CMS Open Payments shows $149 in general payments to Dr. Wang from 2 companies from 2021 to 2021. The largest total came from Novo Nordisk Inc.
How long has Dr. John Hsien Wang been practicing?
Dr. Wang graduated from medical school in 2010, 16 years ago.
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