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DR. MARK ANDREW HIESTERMAN D.O.
NPI 1699980367
Surgery in Glasgow, MT

Active since May 14, 2007PECOS EnrolledAccepts Medicare Assignment
221 5TH AVE S, GLASGOW, MT 59230(406) 228-3536 Get Directions Write a Review

NPPES record last updated: August 6, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mark Andrew Hiesterman D.o. NPPES

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

DR. MARK ANDREW HIESTERMAN D.O. (NPI 1699980367) is an individual surgery provider in Glasgow, Montana, licensed in Montana (131349) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and maintains a secondary practice location in Spokane Valley.

NPPES Registry Identity

NPI1699980367
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. MARK ANDREW HIESTERMANCredential: D.O.
Location Address221 5TH AVE SGlasgow, MT 59230-2600
Mailing Address16201 E Indiana Ave, Suite 3100Spokane Valley, WA 99216-2830 · (509) 891-8904 · Fax (509) 344-3104
Phone(406) 228-3536
Sole ProprietorYes
Medical School CMSOtherGraduated 2005
Enumeration DateMay 14, 2007
Last NPPES UpdateAugust 6, 2024
NPPES CertifiedAugust 6, 2024
✔ NPI 1699980367 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in MT · 131349✔ Licensed in WA · OP60226290
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
221 5TH AVE S, Glasgow, MT 59230
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Secondary Practice Location 1

Location 116201 E Indiana Ave, Suite 3100Spokane Valley, WA 99216-2830 · Phone (509) 891-8904 · Fax (509) 344-3104

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mark Andrew Hiesterman D.o. 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 ID1658542022
PECOS Enrollment IDI20110914000701, I20180221001755, I20240717000336
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Mark Hiesterman reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Frances Mahon Deaconess Hospital
Same address
Rural Health
221 5TH AVE S
Glasgow, MT 59230
  • Reassigned Medicare billing, Montana enrollment
  • Also billed through NPI 1689685323 (Montana)
  • 33 clinicians in this Medicare group
NPI 1043266356 (406) 228-3400
Pro Health One Inc
597 mi
Surgery
8181 E TUFTS AVE STE 510
Denver, CO 80237
  • Reassigned Medicare billing, Montana and Washington enrollments
  • 3 clinicians in this Medicare group
NPI 1053714584 (866) 782-8393
Commonwealth Healthcare Corporation
6,224 mi
End-Stage Renal Disease (ESRD) Treatment
1 LOWER NAVY HILL ROAD
Saipan, MP 96950
  • Reassigned Medicare billing, Northern Mariana Islands enrollment
  • 200 clinicians in this Medicare group
NPI 1285858290 (670) 234-8950

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

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 nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
269 services76 patients
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 99305
An initial nursing facility visit per day is a service where a healthcare professional spends about 35 minutes assessing a patient's health status. This includes reviewing medical history, conducting a physical exam, and developing a care plan based on the patient's needs.
60 services60 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
39 services26 patients
Removal of skin and tissue, 20.0 sq cm or less 11042
This procedure involves the surgical removal of skin and tissue, up to 20.0 square cm in size. It's often performed to treat conditions like skin cancer or to remove moles, warts, and other skin lesions. The area is numbed and the unwanted tissue is carefully cut out.
38 services23 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
30 services22 patients
Initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99304
An initial nursing facility visit is a daily check-up to monitor your health status. This service, lasting typically 25 minutes, involves a nurse assessing your overall wellbeing, discussing concerns, and updating your care plan as needed.
21 services21 patients

Hospital Affiliations CMS Care Compare 2

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

Frances Mahon Deaconess Hospital

Critical Access Hospitals · Glasgow, MT
OwnershipVoluntary non-profit - Private
CMS Certification Number271316
Location621 3rd St SGlasgow, MT 59230 · Valley County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59230 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.

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.

FRANCES MAHON DEACONESS HOSPITAL
Clinic/Center (Rural Health)
221 5TH AVE S
GLASGOW, MT 59230
Valley County (406) 228-3400
JAMES FREDERICK HARRIS MD
Orthopaedic Surgery
221 5TH AVE S
GLASGOW, MT 59230
Valley County (406) 228-3536
ANNE M WILLIAMS M.D.
Surgery
221 5TH AVE S
GLASGOW, MT 59230
Valley County (406) 228-3653
ANTHONY M COLACINO M.D.
Surgery
221 5TH AVE S
GLASGOW, MT 59230
Valley County (406) 228-3536
EMILY M STEVENSON PA-C
Physician Assistant
221 5TH AVE S
GLASGOW, MT 59230
Valley County (406) 228-3536
ELIZABETH RENEE PAGE PT, DPT
Physical Therapist
221 5TH AVE S
GLASGOW, MT 59230
Valley County (406) 228-3500
AMY HOPSTAD MD
Obstetrics & Gynecology
221 5TH AVE S
GLASGOW, MT 59230
Valley County (406) 228-3536
HAYLEE THOMPSON FNP
Nurse Practitioner (Family)
221 5TH AVE S
GLASGOW, MT 59230
Valley County (406) 228-3400

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 Hiesterman's NPI number?

The NPI number for Mark Hiesterman is 1699980367. It was assigned to this individual provider in the NPPES registry on May 14, 2007.

Where is Mark Hiesterman located?

Mark Hiesterman practices at 221 5th Ave S, Glasgow, MT 59230. The listed phone number is (406) 228-3536.

What is Mark Hiesterman's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Mark Hiesterman enrolled in Medicare?

Yes. Mark Hiesterman 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.

Which organizations bill Medicare for Mark Hiesterman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Hiesterman reassigns Medicare benefits to 3 organizations: Frances Mahon Deaconess Hospital (Glasgow, MT), Pro Health One Inc (Denver, CO) and Commonwealth Healthcare Corporation (Saipan, MP). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Hiesterman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Hiesterman accept?

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

According to CMS data, Mark Hiesterman is affiliated with Billings Clinic and Frances Mahon Deaconess Hospital.

When was this NPI record last updated?

The NPPES record for Mark Hiesterman was last updated on August 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.