Dr. Joseph Prinsen, DO, PhD
- Medicare services, 2024
- 459
- Medicare patients, 2024
- 226
- Part D claims, 2024
- 224
- Hospital affiliations
- 3
- Industry payments
- $117
- Practice address
- 250 S Grand Ave., Glendora, CA 91741
- Practice phone
- Call (626) 857-3118
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Emanate Health Foothill Presbyterian Hospital - Mammography
Mammography / Breast Imaging Center · Glendora, California
Find Dr. Prinsen'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. Joseph Prinsen is an internist in Glendora, California
Dr. Prinsen practices at Emanate Health Foothill Presbyterian Hospital - Mammography in Glendora, California.
Dr. Prinsen's NPI, 1790135754, was assigned on June 20, 2016. Dr. Prinsen holds California license 20A19528.
- NPI
- 1790135754NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911330832
- NPI enumeration date
- June 20, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 857-3118
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph Prinsen practices at Emanate Health Foothill Presbyterian Hospital - Mammography in Glendora, California
Dr. Prinsen's primary practice is Emanate Health Foothill Presbyterian Hospital - Mammography, at 250 S Grand Ave., Glendora, CA 91741. The practice phone is (626) 857-3118.
- Emanate Health Foothill Presbyterian Hospital - Mammography250 S Grand Ave., Glendora, CA 91741Phone(626) 857-3118
Source: Dmand AI Affiliation Data
Dr. Joseph Prinsen is affiliated with 4 sites of care and 6 medical groups
Dr. Prinsen's primary practice is Emanate Health Foothill Presbyterian Hospital - Mammography in Glendora, California. Dr. Prinsen is also affiliated with Emanate Health Foothill Presbyterian Hospital. The medical group on file is Vituity. Dmand AI also links Dr. Prinsen to 2 more hospitals and 5 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. Joseph Prinsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Prinsen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Emanate Health Foothill Presbyterian Hospital - Mammography | Available with a free account |
| +3 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joseph Prinsen is one of 16,751 internists in California
Internal medicine is Dr. Prinsen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Prinsen's licenses on file in 7 states: California, Iowa, Maryland, Michigan, New Mexico, Tennessee and Virginia.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Iowa license
- Hospitalist, Maryland
- Michigan license
- New Mexico license
- Tennessee license
- Virginia license
Internists near Dr. Prinsen
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. Joseph Prinsen billed Medicare for 459 services in 2024
CMS data shows 459 Medicare services from Dr. Prinsen across 4 procedure codes in 2024, for 226 Medicare patients. Medicare paid $43,025 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Prinsen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1502024: 45960%
Dr. Prinsen compared with the California median for internists, 2024
- Dr. Prinsen
- California median
- Medicare services
- 459vs 36127% above
- Medicare patients
- 226vs 15150% above
- Part D claims
- 54vs 42187% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Prinsen'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. Prinsen and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph Prinsen treated 226 Medicare patients in 2024, average age 76
CMS counts 226 Medicare patients who saw Dr. Prinsen in 2024. The largest group is 75 to 84, with 75 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 2.54, 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. Prinsen's median patient age at 69, with 56% women.
Dr. Prinsen's Medicare patients by age, 2024
Dr. Prinsen's Medicare patients by sex, 2024
- Women11852%
- Men10848%
Chronic conditions among Dr. Prinsen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Diabetes50%
- Heart failure49%
- Ischemic heart disease48%
- Chronic kidney disease47%
- Mood disorders43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Prinsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph Prinsen wrote 224 Medicare Part D claims in 2024
In 2024, Dr. Prinsen wrote 224 Medicare Part D claims for 68 patients. 91% of them were for generic drugs. CMS names the drug for 54 of them, across 4 drugs with 11 or more claims each, at $2,090 in total drug cost. In 2023, CMS named 48 claims across 4 drugs.
Dr. Prinsen's Part D claims by kind of drug, 2024
- Generic204 claims91%
- Brand-name20 claims9%
Dr. Prinsen'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. Prinsen's Part D claims, 2024
- Opioids7%16 of 224 claims
- Antibiotics16%36 of 224 claims
- Antipsychotics, patients 65 and over5%11 of 224 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: 482024: 5413%
Drugs named by CMS: 4 in 2024, 4 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. Joseph Prinsen takes part in Medicare
Dr. Prinsen 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. Joseph Prinsen received $117 in industry payments from 2020 to 2023
CMS Open Payments shows 2 general payments to Dr. Prinsen from 2 drug and device companies from 2020 to 2023. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $103.
General payments to Dr. Prinsen by program year, 2020 to 2023
Companies that paid Dr. Prinsen the most, 2020 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Joseph Prinsen'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)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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Joseph Prinsen
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. Joseph Prinsen's NPI number?
Dr. Joseph Prinsen's NPI number is 1790135754. It was assigned on June 20, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph Prinsen?
Dr. Joseph Prinsen is an internist in Glendora, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Joseph Prinsen practice?
Dr. Prinsen practices at 250 S Grand Ave., Glendora, CA 91741. Dr. Prinsen's primary practice is Emanate Health Foothill Presbyterian Hospital - Mammography in Glendora, California. Dmand AI also links Dr. Prinsen to 2 hospitals and 5 medical groups.
What is Dr. Joseph Prinsen's office phone number?
The practice phone on file for Dr. Prinsen is (626) 857-3118.
What is Dr. Joseph Prinsen's medical license number?
Dr. Prinsen holds California license 20A19528, one of the licenses on file in 7 states.
Which states has Dr. Joseph Prinsen been licensed in?
Dmand AI has state licenses on file for Dr. Prinsen in California, Iowa, Maryland, Michigan, New Mexico, Tennessee and Virginia.
Which hospitals is Dr. Joseph Prinsen affiliated with?
Dr. Prinsen is affiliated with Emanate Health Foothill Presbyterian Hospital. Dmand AI links Dr. Prinsen to 2 more hospitals.
What medical group is Dr. Joseph Prinsen part of?
Dr. Prinsen is linked to Vituity. Dmand AI links Dr. Prinsen to 5 more medical groups.
Does Dr. Joseph Prinsen accept Medicare?
Yes. CMS data shows Dr. Prinsen billed Medicare for 459 services in 2024, and Dr. Prinsen accepts Medicare assignment.
How many Medicare patients does Dr. Joseph Prinsen see?
CMS counts 226 Medicare patients who saw Dr. Prinsen in 2024, with an average age of 76.
Show 4 more questionsShow fewer questions
What services does Dr. Joseph Prinsen bill to Medicare?
In 2024, Dr. Prinsen's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
What drugs does Dr. Joseph Prinsen prescribe most?
In 2024 Medicare Part D data, Dr. Prinsen's most prescribed drugs by claims were Levofloxacin, Carvedilol and Atorvastatin Calcium.
Has Dr. Joseph Prinsen received payments from drug or device companies?
CMS Open Payments shows $117 in general payments to Dr. Prinsen from 2 companies from 2020 to 2023. The largest total came from Amgen Inc.
How long has Dr. Joseph Prinsen been practicing?
Dr. Prinsen graduated from medical school in 2015, 11 years ago.
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