Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ANN MARIE COLLIER MD
NPI 1487898458
Psychiatry & Neurology - Neurology in Billings, MT

Active since April 21, 2009PECOS EnrolledAccepts Medicare Assignment
801 N 29TH ST, BILLINGS, MT 59101(406) 238-2500 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 30, 2026, Apr 1, 2025, Jul 25, 2024 and 5 more (8 updates tracked since 2023).

About Dr. Ann Marie Collier Md NPPES

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

DR. ANN MARIE COLLIER MD (NPI 1487898458) is an individual neurology provider in Billings, Montana, licensed in Montana (33458) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS, is affiliated with Adventhealth Murray, and maintains 24 additional practice locations.

NPPES Registry Identity

NPI1487898458
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameDR. ANN MARIE COLLIERCredential: MD
Location Address801 N 29TH STBillings, MT 59101-0905
Mailing Address1021 W Oakland Ave Ste 310Johnson City, TN 37604-2192 · (423) 302-6565
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateApril 21, 2009
Last NPPES UpdateJune 15, 20268 updates tracked since enumeration
NPPES CertifiedJune 15, 2026
NPI 1487898458 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Licenses Licensed in MT · 33458 Licensed in IN · 01091446AA Licensed in TN · 69467 Licensed in VA · 0101279598 Licensed in NC · 2023-02929 Licensed in MS · 32262 Licensed in MO · 2023048947 Licensed in GA · 97144 Licensed in FL · ME165841
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
801 N 29TH ST, Billings, MT 59101

Other Names 1

Former Name (1)Ann Marie Potter

Secondary Practice Locations 24

Location 1971 Lakeland Dr Ste 557Jackson, MS 39216-4661 · Phone (601) 200-4560 · Fax (601) 200-4580
Location 21102 W 32nd StJoplin, MO 64804-3503 · Phone (417) 347-4570
Location 3130 W Ravine RdKingsport, TN 37660-3837 · Phone (423) 224-4000
Location 4851 Locust StRogersville, TN 37857-2407 · Phone (423) 921-7000
Location 52000 Brookside DrKingsport, TN 37660-4627 · Phone (423) 857-7000
Location 61501 W Elk AveElizabethton, TN 37643-2874 · Phone (423) 542-1300
Location 72030 Temple Hill RdErwin, TN 37650-8721 · Phone (423) 743-3141
Location 81901 S Shady StMountain City, TN 37683-2021 · Phone (423) 727-1100
Location 91 Medical Park BlvdBristol, TN 37620-7430 · Phone (423) 844-1121
Location 10400 N State Of Franklin RdJohnson City, TN 37604-6035 · Phone (423) 323-6900
Location 111420 Tusculum BlvdGreeneville, TN 37745-4279 · Phone (423) 787-5000
Location 1216000 Johnston Memorial DrAbingdon, VA 24211-7664 · Phone (276) 258-1000
Location 131519 Main StSneedville, TN 37869-3657 · Phone (423) 733-5000
Location 14245 Medical Park DrMarion, VA 24354-1100 · Phone (276) 378-1000
Location 151000 Medical Center BlvdLawrenceville, GA 30046-7694 · Phone (678) 312-1000 · Fax (678) 312-3282
Location 1658 Carroll StreetLebanon, VA 24266-4510 · Phone (276) 883-8000
Location 17312 Hospital DrClintwood, VA 24228-6786 · Phone (276) 926-0300
Location 181701 S Creasy LnLafayette, IN 47905-4972 · Phone (765) 502-4400 · Fax (765) 502-4401
Location 191990 Holton Ave EBig Stone Gap, VA 24219-3350 · Phone (423) 230-8200
Location 20300 Med Tech PkwyJohnson City, TN 37604-2277 · Phone (423) 302-1000
Location 21127 Health Care Dr Ste 3Pennington Gap, VA 24277-2853 · Phone (423) 230-5000
Location 22100 15th St NWNorton, VA 24273-1616 · Phone (423) 630-7001
Location 2315790 Paul Vega DrHammond, LA 70403-1436 · Phone (985) 230-1683 · Fax (985) 230-6652
Location 24200 Hawthorne LnCharlotte, NC 28204-2515 · Phone (704) 384-9437 · Fax (704) 384-9440

Accepted 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

Dr. Ann Marie Collier Md 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 ID42442915
PECOS Enrollment IDI20160804000563, I20231101000370, I20231214003009, I20240209001814, I20240219003151, I20240426002808, I20240504000214, I20240515003575, I20240520003854, I20240723004063, I20250509002717
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 7

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.

Telehealth consultation, emergency department or initial inpatient, typically 30 minutes communicating with the patient via telehealth G0425
A telehealth consultation is a remote medical service where a doctor assesses your health condition through a video call. In an emergency or initial inpatient scenario, this typically lasts for about 30 minutes. This method allows for prompt, efficient care without needing to be physically present in a healthcare facility.
50 services48 patients
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.
33 services19 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
18 services18 patients
Follow-up inpatient consultation, intermediate, physicians typically spend 25 minutes communicating with the patient via telehealth G0407
A follow-up inpatient consultation is a service where a doctor spends around 25 minutes discussing your health progress via telehealth. This virtual meeting helps track your recovery, manage your treatment plan, and address any concerns you may have. It's a crucial part of your ongoing care.
17 services15 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.
16 services15 patients
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.
16 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Adventhealth Murray

Acute Care Hospitals · Chatsworth, GA
OwnershipVoluntary non-profit - Private
CMS Certification Number110050
Location707 Old Dalton Ellijay Road, PO Box 1406Chatsworth, GA 30705 · Murray County
Emergency services

Riverside Medical Center

Acute Care Hospitals · Kankakee, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140186
Location350 N Wall StKankakee, IL 60901 · Kankakee County
Emergency services Birthing friendly

Freeman Health System - Freeman West

Acute Care Hospitals · Joplin, MO
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260137
Location1102 West 32nd StreetJoplin, MO 64804 · Jasper 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
$130.52 typical visit price
range $56.81 – $172.26
Typical copayment $32.63 (range $14.20 – $43.06)
Most-billed visit code 99204
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
Most-billed visit code 99214
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.

Physical Therapist
801 N 29TH ST
BILLINGS, MT 59101
Physician Assistant (Surgical)
801 N 29TH ST
BILLINGS, MT 59101
Obstetrics & Gynecology (Gynecologic Oncology)
801 N 29TH ST
BILLINGS, MT 59101
Physician Assistant
801 N 29TH ST
BILLINGS, MT 59101
Occupational Therapist
801 N 29TH ST
BILLINGS, MT 59101
Ophthalmology
801 N 29TH ST
BILLINGS, MT 59101
Physician Assistant (Surgical)
801 N 29TH ST
BILLINGS, MT 59101
Family Medicine
801 N 29TH ST
BILLINGS, MT 59101

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 Ann Collier's NPI number?

The NPI number for Ann Collier is 1487898458. It was assigned to this individual provider in the NPPES registry on April 21, 2009. The provider is also known as Ann Marie Potter.

Where is Ann Collier located?

Ann Collier practices at 801 N 29th St, Billings, MT 59101. The listed phone number is (406) 238-2500.

What is Ann Collier's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Ann Collier enrolled in Medicare?

Yes. Ann Collier 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 Ann Collier accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of NC, CareSource, CommunityCare and Florida Blue (BlueCross BlueShield FL) and 3 other insurers list Ann Collier 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 Ann Collier affiliated with any hospitals?

According to CMS data, Ann Collier is affiliated with Adventhealth Murray, Riverside Medical Center and Freeman Health System - Freeman West.

When was this NPI record last updated?

The NPPES record for Ann Collier was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days 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.