2026 NPPES data General Practice Dentistry NPI 1184362121 DDS
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HANNAH BYMASTER, DDS

General Practice Dentistry in MISSOULA, Montana. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
28
Medicare Part D claims · 23 beneficiaries · General Practice Dentistry avg: 82
What the federal data reveals: HANNAH BYMASTER, DDS is a General Practice Dentistry ([object Object]) practicing in MISSOULA, Montana with a Medicare Part D prescribing footprint of 28 claims across 23 beneficiaries .

What stands out: HANNAH BYMASTER, DDS filed 28 Medicare Part D claims in 2023 across MISSOULA, Montana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

HANNAH BYMASTER, DDS at a glance

Quality data not reported

NPI registry status

Active

Issued 05/20/2022

NPI 1184362121

Primary specialty

General Practice Dentistry

High-volume

121,627 US NPIs in this specialty

Medicare Part D claims

28 66% vs specialty avg

2023 prescription claims

Specialty avg: 82

Specialty distribution in Montana

How General Practice Dentistry compares to other specialties among Montana providers

Montana providers

General Practice Dentistry share within Montana

1. General Practice Dentistry42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Dentistry share within Montana

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Dentistry (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
General Practice Dentistry ABMS/AOA estimate

Est. board-certified rate (General Practice Dentistry) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice Dentistry) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

HANNAH BYMASTER, DDS is a General Practice Dentistry provider practicing in MISSOULA, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DDS. NPI: 1184362121. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

HANNAH BYMASTER, DDS appears in the CMS NPPES registry as a General Practice Dentistry provider holding DDS credentials at 401 RAILROAD ST W, MISSOULA, MT, 59802, with a listed phone of (406) 258-4789. NPI 1184362121 was issued on 05/20/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BYMASTER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 28 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $215 in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

General Practice Dentistry is a high-volume specialty nationwide, with 121,627 enrolled providers across 56 states and an average of 82 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

401 RAILROAD ST W
MISSOULA, MT 59802

Provider Details

NPI 1184362121
Specialty General Practice Dentistry
Credentials DDS
Gender Female
NPI Issued 05/20/2022

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

28
Total Claims
$215
Total Drug Cost
23
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
28
Total Day Supply
289
Generic Drug Cost
$198
Antibiotic Claims
21

Patient Demographics

Average Patient Age
62.0 years
Avg HCC Risk Score
0.69

General Practice Dentistry Overview

How HANNAH BYMASTER, DDS fits within the General Practice Dentistry landscape nationally.

121,627
General Practice Dentistry Providers in US
56
States with General Practice Dentistry
82
Avg Claims per Provider

HANNAH BYMASTER, DDS's 28 claims are below the specialty average of 82.

Nearby General Practice Dentistry Providers in Montana

Other clinicians with the same primary specialty enrolled in Montana, drawn from the same CMS NPPES roster as BYMASTER.

Compare General Practice Dentistry nationally: see state-by-state distribution →

Frequently Asked Questions

What is HANNAH BYMASTER, DDS's specialty?
HANNAH BYMASTER, DDS specializes in General Practice Dentistry and practices in MISSOULA, Montana. Credentials: DDS.
How much does HANNAH BYMASTER, DDS prescribe under Medicare Part D?
In 2023, HANNAH BYMASTER, DDS wrote 28 Medicare Part D claims totaling $215 in drug costs for 23 beneficiaries.
Where is HANNAH BYMASTER, DDS located?
HANNAH BYMASTER, DDS is located at 401 RAILROAD ST W, MISSOULA, MT, 59802. Phone: (406) 258-4789.
What is HANNAH BYMASTER, DDS's NPI number?
HANNAH BYMASTER, DDS's National Provider Identifier (NPI) is 1184362121, issued on 05/20/2022.
How many General Practice Dentistry providers are there in the US?
There are 121,627 General Practice Dentistry providers across 56 states in the US. The average General Practice Dentistry provider writes 82 Medicare Part D claims per year.
Does HANNAH BYMASTER, DDS accept Medicare?
HANNAH BYMASTER, DDS appears in CMS Medicare data with 28 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HANNAH BYMASTER, DDS's credentials?
HANNAH BYMASTER, DDS's NPI is 1184362121 with credentials DDS. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology