Maria A. Trees, PA-C
- Medicare patients, 2024
- 389
- Part D claims, 2024
- 2,299
- MIPS score, 2024
- 91
- Hospital affiliations
- 2
- Medical groups
- 2
- Practice address
- 4300 Londonderry Road, Harrisburg, PA 17109
- Practice phone
- Call (717) 920-4300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Maria Trees' 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.
Maria A. Trees is a physician assistant in Harrisburg, Pennsylvania
Maria Trees practices at Helen M. Simpson Rehabilitation Hospital in Harrisburg, Pennsylvania, part of Helen M Simpson Rehabilitation Hospital.
Maria Trees' NPI, 1013015866, was assigned on September 20, 2006. Maria Trees holds Pennsylvania license MA002687L.
- NPI
- 1013015866NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961459102
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (717) 920-4300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Maria A. Trees practices at Helen M. Simpson Rehabilitation Hospital in Harrisburg, Pennsylvania
Maria Trees' primary practice is Helen M. Simpson Rehabilitation Hospital, at 4300 Londonderry Road, Harrisburg, PA 17109 in Dauphin County. The practice phone is (717) 920-4300.
- Helen M. Simpson Rehabilitation Hospital4300 Londonderry Road, Harrisburg, PA 17109 · Dauphin CountyPhone(717) 920-4300
Source: Dmand AI Affiliation Data
Maria A. Trees is affiliated with 4 sites of care and 2 medical groups
Maria Trees' primary practice is Helen M. Simpson Rehabilitation Hospital in Harrisburg, Pennsylvania, part of Helen M Simpson Rehabilitation Hospital. Maria Trees is also affiliated with UPMC Harrisburg. The medical group on file is UPMC Pinnacle Health Systems. Dmand AI also links Maria Trees 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 Maria A. Trees' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Maria Trees practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Helen M. Simpson Rehabilitation Hospital | Available with a free account |
| +3 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 Helen M Simpson Rehabilitation Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Maria A. Trees is one of 3,022 physician assistants in Pennsylvania
Medical is Maria Trees' primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Maria Trees is licensed in Pennsylvania.
Specialties and state licenses
- Medical physician assistant, PennsylvaniaPrimary
Physician assistants near Maria Trees
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
Maria A. Trees treated 389 Medicare patients in 2024, average age 78
CMS counts 389 Medicare patients who saw Maria Trees in 2024. The largest group is 75 to 84, with 135 patients. 75% of them have arthritis, and 75% have high blood pressure. 9% are also on Medicaid. Their average risk score is 2.34, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Maria Trees' median patient age at 74, with 37% women.
Maria Trees' Medicare patients by age, 2024
Maria Trees' Medicare patients by sex, 2024
- Women22959%
- Men16041%
Chronic conditions among Maria Trees' Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease61%
- Ischemic heart disease49%
- Anxiety48%
- Diabetes47%
- Mood disorders47%
Share of Medicare patients with each condition. A patient can have several.
Maria Trees' 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
- Women37%
- Men61%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Maria A. Trees wrote 2,299 Medicare Part D claims in 2024
In 2024, Maria Trees wrote 2,299 Medicare Part D claims for 551 patients. 94% of them were for generic drugs.
Maria Trees' Part D claims by kind of drug, 2024
- Generic2,163 claims94%
- Brand-name136 claims6%
Drug classes CMS tracks in Maria Trees' Part D claims, 2024
- Opioids48%1,110 of 2,299 claims
- Antibiotics1%16 of 2,299 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
Maria A. Trees scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Maria Trees for performance year 2024, reported as part of a group. Maria Trees accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Maria Trees' MIPS scores, performance year 2024
- 91of 100Final score
- 76.6of 100Quality
- 40of 100Improvement Activities
- 84of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Maria A. Trees'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)Clinician Public Reporting: Overall MIPS Performance (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 Maria A. Trees
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Maria A. Trees' NPI number?
Maria A. Trees' NPI number is 1013015866. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What does Maria A. Trees specialize in?
Maria A. Trees is a physician assistant in Harrisburg, Pennsylvania. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Maria A. Trees practice?
Maria Trees practices at 4300 Londonderry Road, Harrisburg, PA 17109. Maria Trees' primary practice is Helen M. Simpson Rehabilitation Hospital in Harrisburg, Pennsylvania, part of Helen M Simpson Rehabilitation Hospital. Dmand AI also links Maria Trees to 2 group practices and clinics and 1 medical group.
What is Maria A. Trees' office phone number?
The practice phone on file for Maria Trees is (717) 920-4300.
What is Maria A. Trees' medical license number?
Maria Trees holds Pennsylvania license MA002687L.
Which hospitals is Maria A. Trees affiliated with?
Maria Trees practices at Helen M. Simpson Rehabilitation Hospital in Harrisburg, Pennsylvania. Maria Trees is also affiliated with UPMC Harrisburg.
What medical group is Maria A. Trees part of?
Maria Trees is linked to UPMC Pinnacle Health Systems. Dmand AI links Maria Trees to 1 more medical group.
Does Maria A. Trees accept Medicare?
Yes. CMS lists Maria Trees as accepting Medicare assignment.
What is Maria A. Trees' MIPS score?
Maria Trees' MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Maria A. Trees see?
CMS counts 389 Medicare patients who saw Maria Trees in 2024, with an average age of 78.
How long has Maria A. Trees been practicing?
Maria Trees graduated from medical school in 1998, 28 years ago.
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