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MRS. THERESA MARIE GILLIS PA-C
NPI 1306024476
Physician Assistant in Frederick, MD

Active since January 31, 2008PECOS EnrolledAccepts Medicare Assignment
80.25/100
CMS Quality Rating
68 THOMAS JOHNSON DR, SUITE C, FREDERICK, MD 21702(301) 694-5292(301) 694-2319 Get Directions Write a Review

NPPES record last updated: May 16, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Theresa Marie Gillis Pa-c NPPES

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

MRS. THERESA MARIE GILLIS PA-C (NPI 1306024476) is an individual physician assistant in Frederick, Maryland, licensed in Maryland (C0003401) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS, is affiliated with Frederick Health Hospital, and maintains 15 additional practice locations.

NPPES Registry Identity

NPI1306024476
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMRS. THERESA MARIE GILLISCredential: PA-C
Location Address68 THOMAS JOHNSON DR, SUITE CFrederick, MD 21702-4300
Mailing Address68 Thomas Johnson Dr, Suite CFrederick, MD 21702-4300 · (301) 694-5292 · Fax (301) 694-2319
Phone(301) 694-5292
Fax(301) 694-2319
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateJanuary 31, 2008
Last NPPES UpdateMay 16, 2023
NPPES CertifiedMay 16, 2023
✔ NPI 1306024476 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in MD · C0003401
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
68 THOMAS JOHNSON DR, Frederick, MD 21702
Open in Google Maps ↗

Secondary Practice Locations 15

Location 1504 E Ridgeville BlvdMount Airy, MD 21771-5942 · Phone (240) 215-6310
Location 27211 Bank CtFrederick, MD 21703-8483 · Phone (240) 215-6310
Location 33430 Worthington BlvdFrederick, MD 21704-7017 · Phone (240) 215-6310
Location 4194 Thomas Johnson DrFrederick, MD 21702-4679 · Phone (240) 215-6310
Location 515 E Frederick StWalkersville, MD 21793-8234 · Phone (240) 215-6310
Location 6230 W Patrick StFrederick, MD 21701-6945 · Phone (240) 215-6310
Location 73000D Ventrie CtMyersville, MD 21773-7817 · Phone (240) 215-6310
Location 8501 W 7th StFrederick, MD 21701-4586 · Phone (240) 215-6310
Location 91562 Opossumtown PikeFrederick, MD 21702-4920 · Phone (240) 215-6310
Location 10400 W 7th StFrederick, MD 21701-4506 · Phone (240) 215-6310
Location 111194 Dutchmans Creek DrBrunswick, MD 21716-9786 · Phone (240) 215-6310
Location 121 Frederick Health WayFrederick, MD 21701-9435 · Phone (240) 215-6310
Location 1375 Thomas Johnson DrFrederick, MD 21702-4895 · Phone (240) 215-6310
Location 1416403 Old Emmitsburg RdEmmitsburg, MD 21727-8929 · Phone (240) 215-6310
Location 15141 Thomas Johnson DrFrederick, MD 21702-4502 · Phone (301) 846-0100

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

Mrs. Theresa Marie Gillis 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 ID3173609286
PECOS Enrollment IDI20080328000344
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 11

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.

Ultrasound measurement of bladder capacity after voiding 51798
Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.
497 services323 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.
450 services317 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
328 services255 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
229 services202 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
104 services104 patients
Instillation of anti-cancer drug into bladder 51720
This procedure involves introducing a medication into the bladder to help fight off harmful cells. A small tube is gently placed into the area where urine exits the body. Through this tube, the medication is delivered directly into the bladder for maximum effectiveness.
59 services13 patients

Hospital Affiliations CMS Care Compare

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

Frederick Health Hospital

Acute Care Hospitals · Frederick, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210005
Location400 West Seventh StFrederick, MD 21701 · Frederick County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21702 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$89.75 typical visit price
range $57.99 – $175.57
Typical copayment $22.43 (range $14.49 – $43.89)
Most-billed visit code 99203
Established Patient
$72.23 typical visit price
range $18.66 – $143.02
Typical copayment $18.05 (range $4.66 – $35.75)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

80.25/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.29
Promoting Interoperability100
Improvement Activities40
Cost54.89

Referred Medical Equipment & Supplies CMS DME claims

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

Power wheelchair, group 2 standard, captains chair, patient weight capacity up to and including 300 pounds K0823
DME-Wheelchairs · category DD009N
1 supplier11 claims11 services$114.61 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 6

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

MARK MAZIN
Dentist (General Practice)
68 THOMAS JOHNSON DR
FREDERICK, MD 21702
Frederick County (301) 620-9090
JOHN PINETTI
Dentist (General Practice)
68 THOMAS JOHNSON DR
FREDERICK, MD 21702
Frederick County (301) 620-9090
PETER M TAN DDS MSHS
Oral & Maxillofacial Surgery
68 THOMAS JOHNSON DR, SUITE A
FREDERICK, MD 21702
Frederick County (301) 694-2300
DIANE S. FORD M.D.
Dermatology (Procedural Dermatology)
68 THOMAS JOHNSON DR, SUITE C
FREDERICK, MD 21702
Frederick County (301) 694-5292
MID-MARYLAND ORAL AND MAXILLOFACIAL SURGERY PA
Clinic/Center (Oral and Maxillofacial Surgery)
68 THOMAS JOHNSON DR, SUITE A
FREDERICK, MD 21702
Frederick County (301) 694-2300
GLENN PRITCHARD
Dentist (General Practice)
68 THOMAS JOHNSON DR
FREDERICK, MD 21702
Frederick County (301) 620-9090

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 Theresa Gillis's NPI number?

The NPI number for Theresa Gillis is 1306024476. It was assigned to this individual provider in the NPPES registry on January 31, 2008.

Where is Theresa Gillis located?

Theresa Gillis practices at 68 Thomas Johnson Dr Suite C, Frederick, MD 21702. The listed phone number is (301) 694-5292.

What is Theresa Gillis's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Theresa Gillis enrolled in Medicare?

Yes. Theresa Gillis 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.

Is Theresa Gillis affiliated with any hospitals?

According to CMS data, Theresa Gillis is affiliated with Frederick Health Hospital.

When was this NPI record last updated?

The NPPES record for Theresa Gillis was last updated on May 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.