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MARIA A. TREES PA-C
NPI 1013015866
Physician Assistant - Medical in Harrisburg, PA

Active since September 20, 2006PECOS EnrolledAccepts Medicare Assignment
84.48/100
CMS Quality Rating
845 SIR THOMAS COURT, SUITE 7, HARRISBURG, PA 17109(717) 651-5800 Get Directions Write a Review

NPPES record last updated: May 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Maria A. Trees Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIA A. TREES PA-C (NPI 1013015866) is an individual medical provider in Harrisburg, Pennsylvania, licensed in Pennsylvania (MA002687L) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, is affiliated with Upmc Pinnacle Hospitals, and maintains a secondary practice location in Harrisburg.

NPPES Registry Identity

NPI1013015866
Entity TypeIndividualFemale
Primary Taxonomy363AM0700X
Provider Legal NameMARIA A. TREESCredential: PA-C
Location Address845 SIR THOMAS COURT, SUITE 7Harrisburg, PA 17109
Mailing Address1020 Country Club RdCamp Hill, PA 17011-1048
Phone(717) 651-5800
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateSeptember 20, 2006
Last NPPES UpdateMay 13, 2026
NPPES CertifiedMay 13, 2026
✔ NPI 1013015866 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License✔ Licensed in PA · MA002687L
845 SIR THOMAS COURT, Harrisburg, PA 17109
Open in Google Maps ↗

Secondary Practice Location 1

Location 1815 Sir Thomas Ct Ste 200Harrisburg, PA 17109-4839 · Phone (717) 724-0720 · Fax (717) 724-0730

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Maria A. Trees Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961459102
PECOS Enrollment IDI20050331000417
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
1,306 services314 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
171 services62 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
122 services115 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
110 services106 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
26 services23 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Upmc Pinnacle Hospitals

Acute Care Hospitals · Harrisburg, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390067
Location409 South Second StreetHarrisburg, PA 17104 · Dauphin County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.48/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality88.7
Improvement Activities40
Cost46.68

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%491 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$57.34 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$28.46 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier12 claims12 services$24.23 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
1 supplier18 claims18 services$9.07 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MICHAEL PATRICK KRALL D.O.
Pediatrics
845 SIR THOMAS COURT, SUITE 7
HARRISBURG, PA 17109
Dauphin County (717) 652-7616
MR. MIROSLAW GARDYASZ M.D.
Pediatrics
845 SIR THOMAS COURT, SUITE 7
HARRISBURG, PA 17109
Dauphin County (717) 652-7616
AMY JEANNE BONNEAU M.D.
Pediatrics
845 SIR THOMAS COURT, SUITE 7
HARRISBURG, PA 17109
Dauphin County (717) 652-7616
KEYSTONE PODIATRIC MEDICAL ASSOCIATES
Podiatrist (Foot & Ankle Surgery)
845 SIR THOMAS COURT, SUITE 2
HARRISBURG, PA 17109
Dauphin County (717) 652-5811
JAMIE L. WALTERS P.A.
Physician Assistant (Medical)
845 SIR THOMAS COURT, SUITE 7
HARRISBURG, PA 17109
Dauphin County (717) 651-5800
JOHN RODNEY FRESHMAN MD
Internal Medicine
845 SIR THOMAS COURT, STE 3
HARRISBURG, PA 17109
Dauphin County (717) 233-6791
HEALTHY STARTS PEDIATRICS
Pediatrics
845 SIR THOMAS COURT, SUITE 7
HARRISBURG, PA 17109
Dauphin County (717) 652-7616

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maria Trees's NPI number?

The NPI number for Maria Trees is 1013015866. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Maria Trees located?

Maria Trees practices at 845 Sir Thomas Court Suite 7, Harrisburg, PA 17109. The listed phone number is (717) 651-5800.

What is Maria Trees's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Maria Trees enrolled in Medicare?

Yes. Maria Trees is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Maria Trees accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Maria Trees as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Maria Trees affiliated with any hospitals?

According to CMS data, Maria Trees is affiliated with Upmc Pinnacle Hospitals.

When was this NPI record last updated?

The NPPES record for Maria Trees was last updated on May 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.