MARK T SULLIVAN PA-C
NPI 1952393514
Physician Assistant in Billings, MT

Q: What is Mark Sullivan's NPI number?

The NPI number for Mark Sullivan is 1952393514. It was assigned to this individual provider in the NPPES registry on August 19, 2005.

Q: What is Mark Sullivan's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Mark Sullivan was last updated on April 29, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since August 19, 2005PECOS EnrolledAccepts Medicare Assignment

2900 12TH AVE N, SUITE 140W, BILLINGS, MT 59101(406) 238-6540(406) 238-6599 Get Directions Write a Review

NPPES record last updated: April 29, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Mark T Sullivan Pa-c NPPES

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

MARK T SULLIVAN PA-C (NPI 1952393514) is an individual physician assistant in Billings, Montana, licensed in Montana (205) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with St Vincent Healthcare, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1952393514

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameMARK T SULLIVANCredential: PA-C

Location Address2900 12TH AVE N, SUITE 140WBillings, MT 59101-7506

Mailing Address2900 12th Ave N, Suite 140wBillings, MT 59101-7506 · (406) 238-6540 · Fax (406) 238-6599

Phone(406) 238-6540

Fax(406) 238-6599

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateAugust 19, 2005

Last NPPES UpdateApril 29, 2008

✔ NPI 1952393514 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 MT · 205

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.

2900 12TH AVE N, Billings, MT 59101

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Other Identifiers 6

Medicare UPINS85712MT

Other970010277MT · Rr Medicare

Other000900883MT · Bluecross Blueshield

Medicaid119184500WY

Medicaid435438MT

Medicare PIN81146MT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and more.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

Mark T Sullivan 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 ID7113063470

PECOS Enrollment IDI20111228000147

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 19

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

1,742 services173 patients

Established patient office or other outpatient visit, 20-29 minutes 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.

262 services226 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

198 services166 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

198 services99 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

115 services59 patients

New patient office or other outpatient visit, 30-44 minutes 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

109 services109 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

85 services44 patients

Established patient office or other outpatient visit, 30-39 minutes 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.

65 services62 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

51 services25 patients

Established patient office or other outpatient visit, 10-19 minutes 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

42 services36 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

40 services20 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

39 services18 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

38 services17 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

38 services19 patients

New patient office or other outpatient visit, 45-59 minutes 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.

38 services38 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

34 services16 patients

X-ray of elbow, 2 views 73070

An elbow X-ray, 2 views, is a quick, painless imaging test. It uses a small amount of radiation to produce detailed images of your elbow from two different angles. This helps in diagnosing conditions like fractures, infection, or arthritis. It's a safe and effective way to monitor your elbow health.

22 services12 patients

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

19 services19 patients

Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg J0702

This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.

18 services14 patients

Hospital Affiliations CMS Care Compare

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

St Vincent Healthcare

Acute Care Hospitals · Billings, MT

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number270049

Location1233 N 30th StBillings, MT 59101 · Yellowstone County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59101 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

$87.97 typical visit price

range $56.81 – $172.26

Typical copayment $21.99 (range $14.20 – $43.06)

Most-billed visit code 99203

Established Patient

$70.82 typical visit price

range $18.24 – $140.32

Typical copayment $17.70 (range $4.56 – $35.08)

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.

Reported Quality Measures

Documentation of Current Medications in the Medical Record

Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.

94%856 patients4/55-star benchmark: 100%

e-Prescribing

At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.

100%329 patients5/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

38%441 patients2/55-star benchmark: 100%

Provide Patient Access

For at least one unique patient seen by the MIPS eligible clinician: (1) The patient (or the patient authorized representative) is provided timely access to view online, download, and transmit his or her health information; and (2) The MIPS eligible clinician…

12%911 patients1/55-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

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

Walking boot, non-pneumatic, with or without joints, with or without interface material, prefabricated, off-the-shelf L4387

DME-Orthotic Devices · category DF000N

2 suppliers11 claims11 services$127.43 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 20

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

DR. PAUL W. HOLLEY M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

2900 12TH AVE N, STE 295W
BILLINGS, MT 59101

Yellowstone County (406) 238-6360

YELLOWSTONE PATHOLOGY INSTITUTE, INC.

Clinical Medical Laboratory

2900 12TH AVE N, STE 295W
BILLINGS, MT 59101

Yellowstone County (406) 238-6360

DR. DUANE A. SCHULTZ M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

2900 12TH AVE N, STE 295W
BILLINGS, MT 59101

Yellowstone County (406) 238-6360

DR. MICHAEL S. BROWN M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

2900 12TH AVE N, STE 295W
BILLINGS, MT 59101

Yellowstone County (406) 238-6360

EDWARD N DEAN MD

Internal Medicine (Interventional Cardiology)

2900 12TH AVE N, STE 204E
BILLINGS, MT 59101

Yellowstone County (406) 237-5001

MONTANA HEART INSTITUTE

Internal Medicine (Interventional Cardiology)

2900 12TH AVE N, STE 204E
BILLINGS, MT 59101

Yellowstone County (406) 237-5001

ROBERT T TERRY MD

Internal Medicine (Interventional Cardiology)

2900 12TH AVE N, STE 204E
BILLINGS, MT 59101

Yellowstone County (406) 237-5001

MICHAEL HENRY SCHABACKER MD

Physical Medicine & Rehabilitation (Pain Medicine)

2900 12TH AVE N, SUITE 335W
BILLINGS, MT 59101

Yellowstone County (406) 237-8808

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 Mark Sullivan's NPI number?

The NPI number for Mark Sullivan is 1952393514. It was assigned to this individual provider in the NPPES registry on August 19, 2005.

Where is Mark Sullivan located?

Mark Sullivan practices at 2900 12th Ave N Suite 140W, Billings, MT 59101. The listed phone number is (406) 238-6540.

What is Mark Sullivan's specialty?

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

Is Mark Sullivan enrolled in Medicare?

Yes. Mark Sullivan 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 Mark Sullivan accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Mark Sullivan 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 Mark Sullivan affiliated with any hospitals?

According to CMS data, Mark Sullivan is affiliated with St Vincent Healthcare.

When was this NPI record last updated?

The NPPES record for Mark Sullivan was last updated on April 29, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.