Joy C. Mattern, PA-C
- Medicare patients, 2024
- 313
- Part D claims, 2024
- 4,129
- Hospital affiliations
- 1
- Industry payments
- $184
- Medical groups
- 3
- Practice address
- 1800 E Park Ave, State College, PA 16803
- Practice phone
- Call (814) 231-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mount Nittany Medical Center
State College, Pennsylvania
Find Joy Mattern'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 C. Mattern is a physician assistant in State College, Pennsylvania
Joy Mattern practices at Mount Nittany Medical Center in State College, Pennsylvania.
Joy Mattern's NPI, 1790778371, was assigned on August 29, 2005. Joy Mattern holds Pennsylvania license MA051358.
- NPI
- 1790778371NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537353487
- NPI enumeration date
- August 29, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (814) 231-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Joy C. Mattern practices at Mount Nittany Medical Center in State College, Pennsylvania
Joy Mattern's primary practice is Mount Nittany Medical Center, at 1800 E Park Ave, State College, PA 16803 in Centre County. The practice phone is (814) 231-7000.
- Mount Nittany Medical Center1800 E Park Ave, State College, PA 16803 · Centre CountyPhone(814) 231-7000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Joy C. Mattern is affiliated with 5 sites of care and 3 medical groups
Joy Mattern's primary practice is Mount Nittany Medical Center in State College, Pennsylvania. Joy Mattern is also affiliated with Mount Nittany Medical Center. The medical group on file is Mount Nittany Physician Group. Dmand AI also links Joy Mattern to 2 more group practices and clinics, 2 medical groups and 1 therapy and rehab clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Joy C. Mattern's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joy Mattern practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mount Nittany Medical Center | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Joy C. Mattern is one of 3,022 physician assistants in Pennsylvania
Medical is Joy Mattern's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Joy Mattern is licensed in Pennsylvania.
Specialties and state licenses
- Medical physician assistant, PennsylvaniaPrimary
Physician assistants near Joy Mattern
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 C. Mattern treated 313 Medicare patients in 2024, average age 75
CMS counts 313 Medicare patients who saw Joy Mattern in 2024. The largest group is 65 to 74, with 133 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Joy Mattern's median patient age at 74, with 65% women.
Joy Mattern's Medicare patients by age, 2024
Joy Mattern's Medicare patients by sex, 2024
- Women19663%
- Men11737%
Chronic conditions among Joy Mattern's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis52%
- Anxiety31%
- Chronic kidney disease26%
- Diabetes25%
- Mood disorders25%
- Ischemic heart disease24%
Share of Medicare patients with each condition. A patient can have several.
Joy Mattern's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joy C. Mattern wrote 4,129 Medicare Part D claims in 2024
In 2024, Joy Mattern wrote 4,129 Medicare Part D claims for 911 patients. 90% of them were for generic drugs.
Joy Mattern's Part D claims by kind of drug, 2024
- Generic3,736 claims90%
- Brand-name and other393 claims10%
Drug classes CMS tracks in Joy Mattern's Part D claims, 2024
- Opioids1%60 of 4,129 claims
- Antibiotics4%175 of 4,129 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
How Joy C. Mattern takes part in Medicare
Joy Mattern 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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Joy C. Mattern received $184 in industry payments in 2025
CMS Open Payments shows 14 general payments to Joy Mattern from 6 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $71.
Companies that paid Joy Mattern 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 C. Mattern'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 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 C. Mattern
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 C. Mattern's NPI number?
Joy C. Mattern's NPI number is 1790778371. It was assigned on August 29, 2005, and it is active in the NPI Registry.
What does Joy C. Mattern specialize in?
Joy C. Mattern is a physician assistant in State College, Pennsylvania. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Joy C. Mattern practice?
Joy Mattern practices at 1800 E Park Ave, State College, PA 16803. Joy Mattern's primary practice is Mount Nittany Medical Center in State College, Pennsylvania. Dmand AI also links Joy Mattern to 2 group practices and clinics, 2 medical groups and 1 therapy and rehab clinic.
What is Joy C. Mattern's office phone number?
The practice phone on file for Joy Mattern is (814) 231-7000.
What is Joy C. Mattern's medical license number?
Joy Mattern holds Pennsylvania license MA051358.
Which hospitals is Joy C. Mattern affiliated with?
Joy Mattern is affiliated with Mount Nittany Medical Center.
What medical group is Joy C. Mattern part of?
Joy Mattern is linked to Mount Nittany Physician Group. Dmand AI links Joy Mattern to 2 more medical groups.
Does Joy C. Mattern accept Medicare?
Yes. CMS lists Joy Mattern as accepting Medicare assignment.
How many Medicare patients does Joy C. Mattern see?
CMS counts 313 Medicare patients who saw Joy Mattern in 2024, with an average age of 75.
Has Joy C. Mattern received payments from drug or device companies?
CMS Open Payments shows $184 in general payments to Joy Mattern from 6 companies from 2025 to 2025. The largest total came from Pfizer Inc.
How long has Joy C. Mattern been practicing?
Joy Mattern graduated from medical school in 2003, 23 years ago.
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