Joy Chiyo Dawn Gephart, PA-C
- Medicare patients, 2024
- 98
- Part D claims, 2024
- 4,022
- Hospital affiliations
- 1
- Industry payments
- $14
- Medical groups
- 2
- Practice address
- 335 SE 8th Avenue, Hillsboro, OR 97123
- Practice phone
- Call (503) 681-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Joy Gephart'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.
Joy Chiyo Dawn Gephart is a physician assistant in Hillsboro, Oregon
Joy Gephart practices at Hillsboro Medical Center in Hillsboro, Oregon, part of Hillsboro Medical Center.
Joy Gephart's NPI, 1609077528, was assigned on May 29, 2007. Joy Gephart holds Oregon license PA01234.
- NPI
- 1609077528NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547369365
- NPI enumeration date
- May 29, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (503) 681-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Joy Chiyo Dawn Gephart practices at Hillsboro Medical Center in Hillsboro, Oregon
Joy Gephart's primary practice is Hillsboro Medical Center, at 335 SE 8th Avenue, Hillsboro, OR 97123 in Washington County. The practice phone is (503) 681-1111.
- Hillsboro Medical Center335 SE 8th Avenue, Hillsboro, OR 97123 · Washington CountyPhone(503) 681-1111
Source: Dmand AI Affiliation Data
Joy Chiyo Dawn Gephart is affiliated with 3 sites of care and 2 medical groups
Joy Gephart's primary practice is Hillsboro Medical Center in Hillsboro, Oregon, part of Hillsboro Medical Center. The medical group on file is Oregon Health & Science University (OHSU). Dmand AI also links Joy Gephart to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Joy Chiyo Dawn Gephart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joy Gephart practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hillsboro Medical Center | Available with a free account |
| +2 more sites and 1 medical group | 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 Hillsboro Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Joy Chiyo Dawn Gephart is one of 1,937 physician assistants in Oregon
Physician assistant is Joy Gephart's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Joy Gephart is licensed in Oregon.
Specialties and state licenses
- Physician assistant, OregonPrimary
Physician assistants near Joy Gephart
Counts of physician assistants 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
Joy Chiyo Dawn Gephart treated 98 Medicare patients in 2024, average age 69
CMS counts 98 Medicare patients who saw Joy Gephart in 2024. The largest group is 65 to 74, with 49 patients. 54% of them have high blood pressure, and 50% have high cholesterol. 35% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Joy Gephart's median patient age at 72, with 74% women.
Joy Gephart's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Joy Gephart's Medicare patients by sex, 2024
- Women6970%
- Men2930%
Chronic conditions among Joy Gephart's Medicare patients, 2024
- High blood pressure54%
- High cholesterol50%
- Diabetes37%
- Arthritis28%
- Anxiety24%
- Mood disorders24%
- Depression22%
- Chronic kidney disease13%
Share of Medicare patients with each condition. A patient can have several.
Joy Gephart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women74%
- Men26%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joy Chiyo Dawn Gephart wrote 4,022 Medicare Part D claims in 2024
In 2024, Joy Gephart wrote 4,022 Medicare Part D claims for 421 patients. 91% of them were for generic drugs.
Joy Gephart's Part D claims by kind of drug, 2024
- Generic3,657 claims91%
- Brand-name349 claims9%
- Other16 claims0%
Drug classes CMS tracks in Joy Gephart's Part D claims, 2024
- Opioids3%136 of 4,022 claims
- Antibiotics1%32 of 4,022 claims
- Antipsychotics, patients 65 and over0%15 of 4,022 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Joy Chiyo Dawn Gephart offers telehealth to Medicare patients
Joy Gephart accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Joy Gephart as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Joy Chiyo Dawn Gephart received $14 in industry payments in 2025
CMS Open Payments shows 1 general payment to Joy Gephart from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $14.
Companies that paid Joy Gephart the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Joy Chiyo Dawn Gephart'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 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 (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 Joy Chiyo Dawn Gephart
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joy Chiyo Dawn Gephart's NPI number?
Joy Chiyo Dawn Gephart's NPI number is 1609077528. It was assigned on May 29, 2007, and it is active in the NPI Registry.
What does Joy Chiyo Dawn Gephart specialize in?
Joy Chiyo Dawn Gephart is a physician assistant in Hillsboro, Oregon. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Joy Chiyo Dawn Gephart practice?
Joy Gephart practices at 335 SE 8th Avenue, Hillsboro, OR 97123. Joy Gephart's primary practice is Hillsboro Medical Center in Hillsboro, Oregon, part of Hillsboro Medical Center. Dmand AI also links Joy Gephart to 2 group practices and clinics and 1 medical group.
What is Joy Chiyo Dawn Gephart's office phone number?
The practice phone on file for Joy Gephart is (503) 681-1111.
What is Joy Chiyo Dawn Gephart's medical license number?
Joy Gephart holds Oregon license PA01234.
Which hospitals is Joy Chiyo Dawn Gephart affiliated with?
Joy Gephart practices at Hillsboro Medical Center in Hillsboro, Oregon.
What medical group is Joy Chiyo Dawn Gephart part of?
Joy Gephart is linked to Oregon Health & Science University (OHSU). Dmand AI links Joy Gephart to 1 more medical group.
Does Joy Chiyo Dawn Gephart accept Medicare?
Yes. CMS lists Joy Gephart as accepting Medicare assignment.
Does Joy Chiyo Dawn Gephart offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Joy Gephart as offering telehealth services.
How many Medicare patients does Joy Chiyo Dawn Gephart see?
CMS counts 98 Medicare patients who saw Joy Gephart in 2024, with an average age of 69.
Has Joy Chiyo Dawn Gephart received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Joy Gephart from 1 company from 2025 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Joy Chiyo Dawn Gephart been practicing?
Joy Gephart graduated from medical school in 2006, 20 years ago.
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