MARK N PIERSON PA-C
NPI 1508858234
Physician Assistant in Billings, MT

Q: What is Mark Pierson's NPI number?

The NPI number for Mark Pierson is 1508858234. It was assigned to this individual provider in the NPPES registry on August 18, 2005.

Q: What is Mark Pierson'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 Pierson was last updated on March 24, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since August 18, 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: March 24, 2015. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About Mark N Pierson Pa-c NPPES

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

MARK N PIERSON PA-C (NPI 1508858234) is an individual physician assistant in Billings, Montana, licensed in Montana (414) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1508858234

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameMARK N PIERSONCredential: 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 2000

Enumeration DateAugust 18, 2005

Last NPPES UpdateMarch 24, 2015

✔ NPI 1508858234 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 · 414

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 7

OtherP00264425MT · Rr Medicare

Medicaid4306705MT

Medicare UPINP74031MT

Other000900873MT · Bluecross Blueshield

Medicaid121839500WY

Medicare NSC0500560001MT

Medicare PIN84538MT

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 N Pierson 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 ID9234186453

PECOS Enrollment IDI20050331000230

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 20

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.

742 services72 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.

128 services103 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

72 services63 patients

Aspiration and/or injection of fluid from small joint 20600

This procedure involves inserting a thin needle into a small joint to remove (aspirate) or inject fluid. It can help diagnose conditions, relieve discomfort, or administer medication directly into the joint. It's generally safe with minimal discomfort.

71 services44 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.

67 services48 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.

60 services39 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 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.

53 services53 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.

46 services36 patients

X-ray of finger, minimum of 2 views 73140

An X-ray of the finger involves capturing images of your finger from at least two different angles. This non-invasive procedure helps in visualizing the bones and joints, aiding in the diagnosis of fractures, infections, or other abnormalities. Minimal discomfort may be experienced.

46 services34 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.

43 services43 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 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.

38 services32 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.

34 services23 patients

X-ray of wrist, 2 views 73100

An X-ray of the wrist, 2 views, is a diagnostic procedure where two different images of your wrist are taken using a small amount of radiation. This helps identify any abnormalities or injuries such as fractures or arthritis. It's a quick, non-invasive process.

30 services21 patients

Injection into tendon or ligament 20550

An injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.

24 services19 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.

19 services18 patients

Aspiration and/or injection of fluid from large joint 20610

16 services16 patients

Prosthetic repair of shoulder joint, total shoulder 23472

Total shoulder prosthetic repair is a surgical procedure to replace a damaged shoulder joint with artificial components. It aims to relieve pain and restore mobility. The procedure involves replacing the ball (humeral head) and socket (glenoid) of the shoulder joint.

14 services14 patients

Injection into tendon or ligament 20550

12 services11 patients

Repair of shoulder rotator cuff using an endoscope 29827

This procedure, known as arthroscopic rotator cuff repair, helps fix tears in the shoulder's rotator cuff. An endoscope, a small camera, is used to view the shoulder inside. Using small tools, the surgeon repairs the torn tissue. This minimally invasive approach often leads to a quicker recovery.

11 services11 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Billings Clinic

Acute Care Hospitals · Billings, MT

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number270004

Location2800 10th Ave NBillings, 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.

92%1,442 patients3/55-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%206 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…

43%785 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%1,582 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.

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.

DANIEL M MOLLOY M.D.

Obstetrics & Gynecology

2900 12TH AVE N, STE 245W
BILLINGS, MT 59101

Yellowstone County (406) 238-6010

ST VINCENT HEALTHCARE

Clinic/Center

2900 12TH AVE N, SUITE 130W
BILLINGS, MT 59101

Yellowstone County (406) 237-3620

ST. VINCENT HEALTHCARE

Clinic/Center (Multi-Specialty)

2900 12TH AVE N, SUITE 340W
BILLINGS, MT 59101

Yellowstone County (406) 237-4050

CHARLES MCCLAVE MD

Internal Medicine

2900 12TH AVE N, SUITE 160W
BILLINGS, MT 59101

Yellowstone County (406) 237-8500

DAVID W SHENTON JR. M.D.

Orthopaedic Surgery (Sports Medicine)

2900 12TH AVE N, #100E
BILLINGS, MT 59101

Yellowstone County (406) 238-6700

DR. ROBERT E STOCKDALE M.D.

Urology

2900 12TH AVE N, STE 503E
BILLINGS, MT 59101

Yellowstone County (406) 237-5400

TAD A. STICHMAN PA-C

Physician Assistant

2900 12TH AVE N, SUITE 140W
BILLINGS, MT 59101

Yellowstone County (406) 237-5050

FRED V SCHNEIDER M.D.

Surgery

2900 12TH AVE N, STE 502E
BILLINGS, MT 59101

Yellowstone County (406) 245-6982

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 Pierson's NPI number?

The NPI number for Mark Pierson is 1508858234. It was assigned to this individual provider in the NPPES registry on August 18, 2005.

Where is Mark Pierson located?

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

What is Mark Pierson's specialty?

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

Is Mark Pierson enrolled in Medicare?

Yes. Mark Pierson 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 Pierson accept?

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

According to CMS data, Mark Pierson is affiliated with Billings Clinic.

When was this NPI record last updated?

The NPPES record for Mark Pierson was last updated on March 24, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.