2026 NPPES data Family Medicine Physician NPI 1316359326 M.D., M.P.H.
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BRETT BELL, M.D., M.P.H.

Family Medicine Physician 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
1K
Medicare Part D claims · 70 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: BRETT BELL, M.D., M.P.H. is a Family Medicine Physician ([object Object]) practicing in MISSOULA, Montana with a Medicare Part D prescribing footprint of 1K claims across 70 beneficiaries — 13% brand-name prescribing .

What stands out: BRETT BELL, M.D., M.P.H. filed 1,135 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.

Board certification likely (heuristic — not verified)

BRETT BELL, M.D., M.P.H. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

BRETT BELL, M.D., M.P.H. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/24/2014

NPI 1316359326

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,135 67% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Montana

How Family Medicine Physician compares to other specialties among Montana providers

Montana providers

Family Medicine Physician share within Montana

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Montana

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — 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).

BRETT BELL, M.D., M.P.H. is a Family Medicine Physician provider practicing in MISSOULA, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D., M.P.H.. NPI: 1316359326. 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.

BRETT BELL, M.D., M.P.H. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D., M.P.H. credentials at 401 RAILROAD ST W, MISSOULA, MT, 59802, with a listed phone of (406) 258-4789. NPI 1316359326 was issued on 05/24/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BELL 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 1,135 prescription claims written by this provider, covering 70 Medicare beneficiaries and totaling roughly $106K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 12.1%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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 1316359326
Specialty Family Medicine Physician
Credentials M.D., M.P.H.
Gender Female
NPI Issued 05/24/2014

Hospital and facility affiliations

Facilities where BRETT BELL, M.D., M.P.H. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

PARTNERSHIP HEALTH CENTER INC
MISSOULA, MT
PROVIDENCE HEALTH AND SERVICES MT
MISSOULA, MT

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

BRETT BELL, M.D., M.P.H. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 1,135 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

1,135
Total Claims
$106K
Total Drug Cost
70
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,447
Total Day Supply
40,275
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$75K
Generic Drug Cost
$30K
Opioid Claims
137 (12.1% rate)

Patient Demographics

Average Patient Age
64.9 years
Avg HCC Risk Score
1.01
Gender Split
66% female / 34% male
Age Distribution
<65: 26, 65-74: 33, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Oxycodone Hcl
61
Gabapentin
48
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
42
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
39
Clonazepam
37
Levothyroxine Sodium
37
Alprazolam
34
Diazepam
28
Ondansetron Odt
Ondansetron
26
Quetiapine Fumarate
26

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Medicine Physician Overview

How BRETT BELL, M.D., M.P.H. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

BRETT BELL, M.D., M.P.H.'s 1,135 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Montana

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRETT BELL, M.D., M.P.H.'s specialty?
BRETT BELL, M.D., M.P.H. specializes in Family Medicine Physician and practices in MISSOULA, Montana. Credentials: M.D., M.P.H..
How much does BRETT BELL, M.D., M.P.H. prescribe under Medicare Part D?
In 2023, BRETT BELL, M.D., M.P.H. wrote 1,135 Medicare Part D claims totaling $106K in drug costs for 70 beneficiaries.
Where is BRETT BELL, M.D., M.P.H. located?
BRETT BELL, M.D., M.P.H. is located at 401 RAILROAD ST W, MISSOULA, MT, 59802. Phone: (406) 258-4789.
What is BRETT BELL, M.D., M.P.H.'s NPI number?
BRETT BELL, M.D., M.P.H.'s National Provider Identifier (NPI) is 1316359326, issued on 05/24/2014.
Does BRETT BELL, M.D., M.P.H. prescribe more brand-name or generic drugs?
BRETT BELL, M.D., M.P.H.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $75K in brand drug costs.
Does BRETT BELL, M.D., M.P.H. prescribe opioids?
Yes, BRETT BELL, M.D., M.P.H. had 137 opioid claims in 2023 with an opioid prescribing rate of 12.1%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does BRETT BELL, M.D., M.P.H. prescribe most often?
Based on 2023 Medicare Part D data, BRETT BELL, M.D., M.P.H.'s most frequently prescribed drugs include Oxycodone Hcl, Gabapentin, Buprenorphine-Naloxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRETT BELL, M.D., M.P.H. accept Medicare?
BRETT BELL, M.D., M.P.H. appears in CMS Medicare data with 1,135 Part D claims and 70 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRETT BELL, M.D., M.P.H.'s credentials?
BRETT BELL, M.D., M.P.H.'s NPI is 1316359326 with credentials M.D., M.P.H.. 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