MS. MARGARET BERNADETTE HAMMERSLA CRNP
NPI 1235157439
Nurse Practitioner - Adult Health in Bozeman, MT


Quality Rating: 82.73 out of 100 score

NPI Status: Active since July 17, 2006

Contact Information

937 HIGHLAND BLVD STE 5410
BOZEMAN, MT
ZIP 59715
Phone: (406) 414-2400

Get Directions Reviews

  • Individual
  • Female
  • Nurse Practitioner
  • Adult Health
  • Accepts Insurance
  • PECOS Enrolled
  • Medicare Quality Reporting

About MARGARET HAMMERSLA

This page provides the complete NPI Profile along with additional information for Margaret Hammersla, a provider established in Bozeman, Montana with a medical specialization in Nurse Practitioner, focusing in adult health . The healthcare provider is registered in the NPI registry with number 1235157439 assigned on July 2006. The practitioner's primary taxonomy code is 363LA2200X with license number 159783 (MT). The provider is registered as an individual and her NPI record was last updated April 2025.

NPI
1235157439
Provider Name
MS. MARGARET BERNADETTE HAMMERSLA CRNP
Gender
Female
Entity Type
Individual
Location Address
937 HIGHLAND BLVD STE 5410 BOZEMAN, MT 59715
Location Phone
(406) 414-2400
Mailing Address
915 HIGHLAND BLVD BOZEMAN, MT 59715
Mailing Phone
(406) 414-5000
Is Sole Proprietor?
No
Enumeration Date
07-17-2006
Last Update Date
04-09-2025
Code Navigator

A nurse practitioner (NP) like Margaret Hammersla is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

Location Map

Secondary Locations

  • 710 Obrecht Rd
    Sykesville, MD 21784
    (410) 795-8808

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Nurse Practitioner Adult Health

Taxonomy Code
363LA2200X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
159783
License State
MT

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1363LA2200XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Adult Health

R128313 (MD)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Blue Focus Bronze POS? 205 - POS
  • Blue Focus Bronze POS? 705 - POS
  • Blue Focus Bronze POS? Standard - POS
  • Blue Focus Gold POS? 207 - POS
  • Blue Focus Gold POS? 902 - POS
  • Blue Focus Gold POS? Standard - POS
  • Blue Focus Silver POS? 206 - POS
  • Blue Focus Silver POS? 903 - POS
  • Blue Focus Silver POS? Standard - POS
  • Blue Preferred Bronze PPO? 201 - PPO
  • Blue Preferred Bronze PPO? 202 - PPO
  • Blue Preferred Bronze PPO? Standard - PPO
  • Blue Preferred Gold PPO? 204 - PPO
  • Blue Preferred Gold PPO? 901 - PPO
  • Blue Preferred Gold PPO? Standard - PPO
  • Blue Preferred Security PPO? 200 - PPO
  • Blue Preferred Silver PPO? 203 - PPO
  • Blue Preferred Silver PPO? 308 - PPO
  • Blue Preferred Silver PPO? Standard - PPO
  • Connect Bronze Expanded Standard - PPO
  • Connect Bronze HDHP - PPO
  • Connect Catastrophic - PPO
  • Connect Gold - PPO
  • Connect Gold Standard - PPO
  • Connect Silver - PPO
  • Connect Silver Standard - PPO
  • High Plains Bronze HDHP - PPO
  • High Plains Bronze Standard Expanded - PPO
  • High Plains Gold - PPO
  • High Plains Gold HDHP - PPO
  • High Plains Gold Standard - PPO
  • High Plains Silver - PPO
  • High Plains Silver Standard - PPO
  • Plus Bronze Expanded - PPO
  • Plus Bronze Standard Expanded - PPO
  • Plus Gold - PPO
  • Plus Gold Standard - PPO
  • Plus Silver Standard - PPO
  • ACCESS BRONZE - PPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Margaret Hammersla is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Oxygen and Supplies (DC000N)

    Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)

    1 DME suppliers used 12 Medicare Claims 12 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    1 DME suppliers used 12 Medicare Claims 12 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient custodial care facility, group care, or assisted living visit, typically 40 minutes

This is a routine visit for established patients residing in care facilities like nursing homes or assisted living. The visit typically lasts about 40 minutes, during which the healthcare provider checks your overall health, discusses any concerns, and adjusts care plans as needed.

This service was performed 48 times for 32 patients

Established patient home visit, typically 40 minutes

An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.

This service was performed 26 times for 22 patients

Insertion of needle into vein for collection of blood sample

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

This service was performed 17 times for 17 patients

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 59715 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $87.97
  • Minimum New Patient Price $56.81
  • Maximum New Patient Price $172.26
  • Average New Patient Copayment $21.99
  • Minimum New Patient Copayment $14.2
  • Maximum New Patient Copayment $43.06

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $100.16
  • Minimum Established Patient Price $18.24
  • Maximum Established Patient Price $140.32
  • Average Established Patient Copayment $25.04
  • Minimum Established Patient Copayment $4.56
  • Maximum Established Patient Copayment $35.08

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 82.73, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 82.73 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: 80.79

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: 100

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 40

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores.

  • Cost Score: 61.66

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

  • Cost Score: 61.66

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure Performance Number of Patients
Care Plan 63% 110
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker or provide an advance care plan
Pneumococcal Vaccination Status for Older Adults 61% 74
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
Screening for Osteoporosis for Women Aged 65-85 Years of Age 56% 39
Percentage of female patients aged 65-85 years of age who ever had a central dual-energy X-ray absorptiometry (DXA) to check for osteoporosis

Reviews for MS. MARGARET BERNADETTE HAMMERSLA CRNP

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1235157439
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2265251446
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 2 + 6 + 5 + 2 + 5 + 1 + 4 + 4 + 6 + 24 = 61
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 61 = 99

The NPI number 1235157439 is valid because the calculated check digit 9 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1982118808 SONJA RUTH CLAUSEN PHARMD
Individual
Pharmacist (Ambulatory Care)937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1184192312DR. KRISTEN LYNN HUNTER PHARMD
Individual
Pharmacist937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-1623
1346636099 TIA UTZINGER LCSW
Individual
Social Worker (Clinical)937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1285658757DR. JOHN B ROBBINS MD
Individual
Internal Medicine937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1063594182MRS. KEVEN JEAN COMER NP
Individual
Nurse Practitioner937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1528193265 THEODORE R PREISS PA-C
Individual
Physician Assistant (Medical)937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-3610
1417115791MRS. JESSICA LYNN ANDERSON PA-C
Individual
Physician Assistant937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-4260
1548547680 CAROL KITTRELL SISK FNP
Individual
Nurse Practitioner (Family)937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1427068295DR. ROBERT A HATHAWAY MD
Individual
Internal Medicine937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1568472330 KAREN IZBICKI PA-C
Individual
Physician Assistant937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1205595196 MANUEL JAMES STUBBS LCPC, NCC
Individual
Counselor (Professional)937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1033586730DR. JONATHAN PRINCE BRIGHAM M.D.
Individual
Psychiatry & Neurology (Geriatric Psychiatry)937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1710541131BOZEMAN HEALTH DEACONESS HOSPITAL
Organization
Internal Medicine937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1023030079DR. PAMELA HIEBERT MD
Individual
Internal Medicine937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1083980619 DANIEL SCOTT MITCHELL D.O.
Individual
Internal Medicine937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1104840842DR. MICHAEL HERRING MD
Individual
Internal Medicine937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1174935688 AMY WAGNER FNP-C
Individual
Nurse Practitioner (Family)937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1194915397 STEFFAN JOHN MAY M.D.
Individual
Internal Medicine937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 522-2400
1346667805 SHALINA F LINGLEY MD
Individual
Internal Medicine937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400
1750052619DR. JORDAN MARIE OVERSTREET DNP
Individual
Nurse Practitioner (Family)937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
(406) 414-2400

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1235157439, enumerated in the NPI registry as an "individual" on July 17, 2006

The provider is located at 937 Highland Blvd Ste 5410 Bozeman, Mt 59715 and the phone number is (406) 414-2400

The provider's speciality is Nurse Practitioner with taxonomy code 363LA2200X with a focus in Adult Health

The provider might be accepting Accepts: Blue Cross and Blue Shield of Montana and Mountain. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The provider has an overall high rating in the following quality measures: quality clinical practices and patient outcomes and experiences , uses technology to exchange and make use of healthcare information.

Medicare beneficiaries should expect a typical cost of $87.97 with an average copayment of $21.99 for new patient appointments. Established patients should expect a typical charge of $100.16 and an average copayment of 25.04. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Established patient custodial care facility, group care, or assisted living visit, typically 40 minutes, Established patient home visit, typically 40 minutes and Insertion of needle into vein for collection of blood sample.

This NPI record was last updated on July 17, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.